SLVU347– December 2009 Evaluation Module for UCD90120 and

User's GuideSLVU347–December 2009

Evaluation Module for UCD90120 and UCD90124

This User’s Guide describes the evaluation modules (EVM) for the UCD90120 (UCD90120EVM) andUCD90124 (UCD90124EVM). The EVM contains evaluation and reference circuitry for the UCD90120 andUCD90124. UCD90120 and UCD90124 are advanced power system controllers containing sequencing,monitoring, fan control and many other power supply system support features.

Contents1 Description ................................................................................................................... 2

1.1 Features ............................................................................................................. 21.2 Applications ......................................................................................................... 2

2 Quick Start ................................................................................................................... 32.1 Test Setup .......................................................................................................... 32.2 EVM Layout View .................................................................................................. 42.3 EVM Block Diagram ............................................................................................... 5

3 UCD90120/4 EVM GUI Setup ............................................................................................. 63.1 UCD90120/4 EVM GUI Installation .............................................................................. 63.2 UCD90120/4 EVM GUI Operation ............................................................................... 7

4 General Use Features ...................................................................................................... 94.1 EVM Input/Output Connectors and Switches .................................................................. 94.2 EVM LEDS ........................................................................................................ 104.3 EVM Test Points .................................................................................................. 114.4 EVM Test Jumpers ............................................................................................... 13

5 Description ................................................................................................................. 155.1 Communication Interfaces ....................................................................................... 155.2 Power .............................................................................................................. 155.3 Test/Debug and Status .......................................................................................... 165.4 Digital I/O Terminations .......................................................................................... 165.5 Analog Monitor Inputs ............................................................................................ 165.6 Local Voltage Rails ............................................................................................... 175.7 External Temperature Sensor .................................................................................. 175.8 Input Current Monitoring ......................................................................................... 215.9 Closed Loop Voltage Margining ................................................................................ 255.10 Fan Interface ...................................................................................................... 30

6 Bill of Materials ............................................................................................................. 317 Layout Guidelines, EVM Schematic, and Assembly Drawings ...................................................... 37

7.1 Layout Guidelines ................................................................................................ 377.2 EVM Schematic ................................................................................................... 377.3 Assembly Drawings .............................................................................................. 37

List of Figures

1 Typical Test Setup .......................................................................................................... 3

2 UCD90120/4 EVM View.................................................................................................... 4

3 UCD90120/4 EVM Block Diagram........................................................................................ 5

List of Tables

1 EVM Input/Output Connectors and Switches ........................................................................... 9

1SLVU347–December 2009 Evaluation Module for UCD90120 and UCD90124Submit Documentation Feedback

Copyright © 2009, Texas Instruments Incorporated

http://www.go-dsp.com/forms/techdoc/doc_feedback.htm?litnum=SLVU347

Description www.ti.com

2 EVM LED’s ................................................................................................................. 10

3 EVM Test Points........................................................................................................... 11

4 EVM Jumpers .............................................................................................................. 13

5 Local Rail Nominal Output Voltages .................................................................................... 17

6 UCD90120/4EVM Bill of Materials ..................................................................................... 31

1 Description

The UCD90120 and UCD90124 EVM provides many sophisticated power supply system controllerapplication capabilities. The EVM allows direct PMBus (power management bus) communication with theUCD90120 and UCD90124 via an onboard USB interface. This interface allows direct control andfeedback with the UCD90120 and UCD90124 when using theTI-Fusion-Digital-Power-Designer-Graphical-User-Interface.

1.1 Features• General features

– Single 12V supply input– 12 rail sequencing– 13 analog monitors– Single fan control interface– Status LEDs on all GPIOs– USB-PMBus interface for communication

• Orderable options

– UCD90124EVM 12 channel sequencer and monitor with fan control– UCD90120EVM 12 channel sequencer and monitor

1.2 Applications• Industrial / ATE• Telecommunications and Networking Equipment• Servers and Storage Systems• Any System Requiring Sequencing and Monitoring of Multiple Power Rails

2 Evaluation Module for UCD90120 and UCD90124 SLVU347–December 2009Submit Documentation Feedback



12V

Power

Supply

UCD90120/4EVM

J1

D56

J2

J3

FAN

-+

J66 J9 J77

J74

J73

J18

U4

UCD90120/

UCD90124

S1 S10

S2

S4

S6

S8

S3

S5

S7

S9

JTAG PMBUSUSB

EX

PA

NS

ION

FAULT INJECTION

12V INPUT

AD

DR

ES

S

RESET LED ENABLE

VR5 - VR12

EVR5 - EVR12

VR1 – VR4

EVR1 – EVR4

PC with GUI

USB CABLEFAN

www.ti.com Quick Start

2 Quick Start

2.1 Test Setup

Figure 1 shows a typical test setup for UCD90120/4EVM. All that is required is a 12V (500mA forUCD90120EVM or 2000mA for UCD90124EVM running a fan) wall adapter/laptop power supply (see J1BOM description for receptacle size) and a PC. The USB-EVM cable is provided with the EVM.

Figure 1. Typical Test Setup




USBJ 3D 56

J 77 EXT

PMBUS

J 74

PWM TEST

ACCESS

J 73

GPIO TEST

ACCESS

R 186

TEMP SIM

POT

RAIL5 -12

FAULT &

CONFIG

RAIL 5 -12

INT/EXT MON

CONFIGRAIL 3 ,4

INT/EXT / I MON &

MARGIN CONFIG

RAIL 1 ,2

INT/EXT /T MON &

MARGIN CONFIG

LOCAL 3 .3 V

12 V INPUT

(SCREW JACK)

12 V INPUT

DC ADAPTER JACK)

J9 JTAGJ 66 FAN

S 10 STAT

LED ENABLEUCD 90120

FAN

CONFIG

PB RST &

ADDRESS

GPI CONFIG

Quick Start www.ti.com

2.2 EVM Layout View

Figure 2. UCD90120/4 EVM View




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www.ti.com Quick Start

2.3 EVM Block Diagram

Figure 3. UCD90120/4 EVM Block Diagram




UCD90120/4 EVM GUI Setup www.ti.com

3 UCD90120/4 EVM GUI Setup

3.1 UCD90120/4 EVM GUI Installation

The UCD90120 and UCD90124 EVMs use the Texas Instruments Fusion Digital Power Designergraphical user interface (GUI) which may be downloaded from the following web site:http://focus.ti.com/docs/toolsw/folders/print/fusion_digital_power_designer.html

Place the TI-Fusion-Digital-Power-Designer-zip file in a known location on the PC. Unzip theTI-Fusion-Digital-Power-Designer-zip file.

Double click the unzipped TI-Fusion-Digital-Power-Designer-exe file. Proceed through the installation byaccepting the installer prompts and the license agreement. Accept the GUI suggested default PCinstallation locations to complete the install.

Once the GUI completes the installation it will start. The first time the GUI is launched on a particular PCthe user may be prompted to select a device. Choose UCD9xxx. Afterwards, the GUI may be closed.

Note that the TI-Fusion-Digital-Power-Designer v1.6.105 was used for the examples to be shown later inthe document.



http://focus.ti.com/docs/toolsw/folders/print/fusion_digital_power_designer.html


www.ti.com UCD90120/4 EVM GUI Setup

3.2 UCD90120/4 EVM GUI Operation

The EVM comes pre-loaded with a 12 rail default project that sequences the EVM rails on at power up. Itis a good idea to export the default project to a file on the PC prior to making changes.

3.2.1 Launch TI-Fusion-Digital-Power-Designer

Navigate to the location where the Fusion GUI is installed and (Start, All Programs, Texas InstrumentsFusion Digital Power Designer, Fusion Digital Power Designer) and start it. A window similar to thefollowing will appear.




UCD90120/4 EVM GUI Setup www.ti.com

Most of the GUI control features are available from the Configure window. Monitor and Status informationis available from the respective buttons on the GUI lower left. A typical Monitor window is shown below.




www.ti.com General Use Features

4 General Use Features

4.1 EVM Input/Output Connectors and Switches

Table 1. EVM Input/Output Connectors and Switches

Connector/Switch Label Description

J1 12V INPUT 12V DC jack

J2 12V INPUT 12V screw jack

J9 JTAG JTAG Connector

J66 FAN Fan interface connector

J73 GPIO TESTACCESS GPIO expansion

J74 PWM TEST ACCESS PWM expansion

J77 PMBUS PMBus expansion

J3 USB IN USB input connector

S1 RESET Push button reset

S10 STAT LED Status LED enable switch

S2 FAULT – MON5 MON5 fault switch








R186 TEMP MON Fan temperature simulator




General Use Features www.ti.com

4.2 EVM LEDS

Table 2. EVM LED’s

LED Color Label Description

D5 RED 5V 5VBUS ON indicator

D9 RED V33D UCD90120/4 power ON

D28 RED ALERT PMBus Alert

D29 GREEN CTRL PMBus Control

D56 GREEN USB ON USB attached

D8 AMBER GPI1 GPI1 input HIGH




D30 GREEN GPIO1 GPIO1 HIGH














D31 AMBER FPWM1 GPIO5 HIGH








D14 RED VR1 VR1 ON

D15 RED VR2 VR2 ON

D16 RED VR3 VR3 ON

D17 RED VR4 VR4 ON

D18 RED VR5 VR5 ON

D19 RED VR6 VR6 ON

D20 RED VR7 VR7 ON

D21 RED VR8 VR8 ON

D22 RED VR9 VR9 ON

D23 RED VR10 VR10 ON







4.3 EVM Test Points

Table 3. EVM Test Points

TP Color Label

TP1 RED 12VBUS

TP2 RED 5VBUS

TP3 WHT L3P3V

TP4 WHT V33D

TP11 BLK GND

TP17 BLK GND

TP6 WHT ADDRSENS0

TP7 ORG ADDRSENS1

TP37 BLK GND

TP43 BLK GND

TP8 YEL EVR1

TP13 YEL EVR2

TP16 YEL EVR3

TP22 YEL EVR4

TP28 YEL EVR5

TP34 YEL EVR6

TP46 YEL EVR7

TP52 YEL EVR8

TP29 YEL EVR9

TP35 YEL EVR10

TP47 YEL EVR11

TP53 YEL EVR12

TP14 WHT VR1 LOAD TEMP MON

TP18 WHT VR1 CURRENT MON

TP9 WHT VR1

TP12 WHT VR2

TP19 WHT VR3

TP20 WHT VR4

TP36 WHT VR5

TP38 WHT VR6

TP39 WHT VR7

TP40 WHT VR8

TP54 WHT VR9

TP56 WHT VR10

TP61 WHT VR11

TP62 WHT VR12

TP55 BLK GND

TP24 WHT GPIO1

TP25 WHT GPIO2

TP26 WHT GPIO3

TP27 WHT GPIO4

TP32 WHT GPIO13

TP66 WHT GPIO14 (SCI-TX)

TP65 WHT GPIO15 (SCI-RX)

TP44 WHT GPIO16

TP48 WHT GPIO17





Table 3. EVM Test Points (continued)

TP Color Label

TP33 WHT GPIO19

TP57 WHT GPIO18

TP45 WHT GPIO20

TP49 WHT GPIO21

TP58 WHT GPIO22

TP10 YEL MON1

TP15 YEL MON2

TP21 YEL MON3

TP23 YEL MON4

TP30 YEL MON5

TP41 YEL MON6

TP50 YEL MON7

TP59 YEL MON8

TP31 YEL MON9

TP42 YEL MON10

TP51 YEL MON11

TP60 YEL MON12

TP5 YEL MON13

TP63 BLK GND

TP64 YEL TEMP POT WIPER

TP67 WHT LA CLOCK

TP68 SM-SLV GND

TP69 SM-SLV GND

TP70 SM-SLV GND

TP71 SM-SLV GND

TP72 SM-SLV GND

TP73 SM-SLV GND





4.4 EVM Test Jumpers

The EVM will be equipped with shunts on the jumper positions identified in the Default Pin Position below.Shunts can be moved and removed as required during use.

Table 4. EVM Jumpers

Jumper Default Pin Label DescriptionPosition

J8 3.3VUSB 3.3V USB

J78 1-2 EEPROM SCL

J79 1-2 EEPROM SDA

J69 1-2 PWM PU Fan PWM pullup/pulldown select

J70 1-2 Fan PWM select (fast or slow) FPWM5

J67 1-2 Fan tach input or slow PWM output

J72 2-3 TACH PU Fan tach input pullup/pulldown select

J71 EVR12 Fan temperature simulator pot to MON12

J68 2-3 Fan type select (4 or 2/3 wire)

J10 1-2 GPI1 General purpose input #1




J34 2-3 GPIO1 GPIO1 (enable #1) pullup/pulldown












J75 2-3 GPIO14 GPIO14 pullup/pulldown

J76 2-3 GPIO15 GPIO15 pullup/pulldown

J18 1-2,7-8 PM ADDR PMBus address

J11 TCK JTAG TCK

J6 TDI JTAG TDI

J12 TDO JTAG TDO

J7 TMS JTAG TMS

J4 1-2 L3.3V LDO 3.3V to board 3.3V

J13 12VB Local 12VBUS-V33D regulator

J5 1-2 Local or LDO 3.3V

J19 HVMON EVR1 monitor scaling




J20 1-2 1L 1E MON1 source select

J24 3-4 E2 L2 T1 MON2 source select

J28 3-4 E3 L3 C1 MON3 source select






Table 4. EVM Jumpers (continued)

Jumper Default Pin Label DescriptionPosition









J15 1-2 MON13 MON 13 source select

J26 1-2 C1 VR1 output load

J22 RC MRG1 VR1 margining feedback




J21 1-2 5V VR1, VR2 5VBUS input

J29 1-2 5V VR3, VR4 5VBUS input

J38 1-2 R1_EN VR1 enable















www.ti.com Description

5 Description

The following paragraphs describe the UCD90120/4 EVM functionality and operation.

5.1 Communication Interfaces

Several communication interfaces to the UCD90120/4 are provided on the EVM.

5.1.1 USB Interface

An onboard USB to PMBus interface is provided through the USB Input (J3) connector. D56 provides USBattach status. The presence of USB power at J3 activates buffer circuitry which gives control of the PMBusto the on board circuitry. The absence of USB power at J3 gives PMBus control through the ExpansionPMBus (J77) connector.

5.1.2 PMBus

Standard PMBus interface is provided to the UCD90120/4 through the J77 connector when the on EVMUSB-PMBus interface is not used. PMBus addressing is set using the J18 jumper block for ADDRSENS1and ADDRSENS0 respectively. ADDRx=8 and ADDRx=5 positions for each are provided. The EVMcomes with PMBus address set to 101 decimal.

PMBus Address (decimal) = 12 × ADDR1 + ADDR0 jumper block setting.

5.1.3 JTAG

Standard JTAG programming interface is provided to the UCD90120/4 through the J9 connector. InstallJ6, J7, J11, and J12 jumpers and ensure that rail 9-12 enable jumpers (J47, J53, J59, J65) are removedwhen using the JTAG interface.

5.2 Power

5.2.1 Input Power

The 12VDC EVM input power is provided through J1 (standard DC jack) or J2 (screw jack). A wall orlaptop adapter with 500mA (UCD90120EVM) or 2000mA (UCD90124EVM running a fan) capability and2.5mm I.D. x 5.5mm O.D. x 9.5mm DC jack can power the EVM. Reverse voltage protection and inrushlimiting is provided for 12VBUS. The 12VBUS signal is distributed for fan power and Local 3.3V supply.

5.2.2 5VBUS

5VBUS is derived from 12VBUS and provides the input voltage for rails 1-12. D5 will illuminate when5VBUS is present.

5.2.3 L3P3V

L3P3V is derived from 5VBUS and provides a general purpose 3.3V supply for the common onboardfunctions. The L3P3V jumper (J4) is installed to provide a connection to the 3P3V node.

5.2.4 V33D

The V33D node is connected to the UCD90120/4 digital and analog supply pins. V33D can be sourced by3P3V or Local V33D using the J5 jumper. D9 will illuminate when V33D is present.

5.2.5 Local 3.3V

The UCD90120/4 can be powered from 12VBUS using the local V33D supply. Install J13 (12VB) andensure J5 is installed in the LV33D position to use the local regulator.





5.2.6 Local USB

When the local 12V power supply source is not available, a subset of EVM functionality is available usingonly power from the local USB source (3P3V_USB). Install J8 (3.3VUSB) and remove J4 when thisoperation is desired. Communication to the UCD90120/4 is possible but power supply sequencing andoperation is not.

5.3 Test/Debug and Status

5.3.1 GPIO Expansion

J73 and J74 provide EVM to system board expansion capability as well as an HP type logic analyzerinterface.

5.3.2 Status LEDs

Visual status information for the GPI, GPIO, and PMBus signals (control and alert) is provided. Logic highat GPI1-4 or GPIO1-22 will illuminate the associated LED. The GPIO status LEDs can be enabled (EN) ordisabled (EN bar) through the use of S10 to prevent the LED bias from affecting the logic state of theGPIO signal during device reset.

5.4 Digital I/O Terminations

5.4.1 General Purpose Input/Output Terminations

GPIO1-22 can be pulled up or down with a 10kΩ resistor using jumpers. GPIO14 and GPIO15 can also beused as voltage margining inputs.

5.4.2 General Purpose Input Terminations

GPI1-4 can be pulled up or down with a 10kΩ resistor using jumpers.

5.5 Analog Monitor Inputs

The UCD90120/4 monitor inputs MON1-13 can be used to monitor onboard or off board voltages.Jumpers are used to select the analog source.

5.5.1 MON1 and MON4–MON11

MON1 and MON4-11 can be sourced by the onboard rail (L#) or an external (E#) voltage.

5.5.2 MON2, MON3, MON12 and MON13

MON2 can be sourced by the onboard rail (L2), an external (E2) or the on board temperature sensor (T1)voltage. MON3 can be sourced by the onboard rail (L3), an external (E3) or the on board current monitor(C1) voltage. MON12 can be sourced by onboard rail (12L), an external source (12E) or the onboard fantemperature potentiometer input (TEMP MON) voltage. MON13 can be sourced by the V33D or 12VBUSvoltage.

5.5.3 Monitor Scaling

For the external monitor jumper positions (E1-E4), the external supply can be scaled by a selectable factorof 2 for monitoring external voltages up to 5V or 6 for monitoring external voltages up to 15V. For MON13,the scale factor is 6 for the 12VB position and 2 for the V33D position. For all other MON jumper positions,the scale factor is 2.

5.5.4 Monitor Fault Injection

Under voltage or over voltage faults can be injected on MON 5–MON12 through the use of on boardswitches (S2, S4, S6, S8, S3, S5, S7, S9 respectively). The switches provide a fault bias on the nominalvoltage of approximately ±20%





5.6 Local Voltage Rails

Twelve on board voltages are provided for sequencing and monitoring. Each voltage rail has an output onLED. The nominal output voltages are listed in Table 5.

Table 5. Local Rail Nominal Output Voltages

Local Rail L1 L2 L3 L4 5L 6L 7L 8L 9L 10L 11L 12L

NominalVoltage 3.5V 3.3V 2.5V 1.8V 3.4V 3.2V 3.0V 2.8V 2.6V 2.4V 2.2V 2.0V

5.7 External Temperature Sensor

An onboard temperature sensor is provided to measure temperature rise of the VR1 output load (R74).MON2 can be used to monitor the temperature rise caused by heat up of R74 when the shunt on J24 is inthe T1 position. When J26 (C1) is installed, the temperature sensor near R74 records temperature risesimulating power supply warm up.

• Use TP14 (T1) to measure the temperature sensor output voltage.• Temperature (in degrees C) = 100 × VT1 – 50 where VT1 is the voltage at TP14.• The voltage at TP14 is scaled by a factor of 2 prior to sampling at MON2.• Set the GUI Temp Cal Gain = 200°C/V and the Temp Cal Offset = –50°C.

5.7.1 Basic Process for Adding Temperature Monitoring to a Rail

A basic procedure to add temperature monitoring to rail #1, starting with the EVM default configuration willfollow. Ensure that rail #1 is selected in the upper right corner.





• While in the Configure section of the GUI, select the Pin Assignment tab





• Delete the current pin assignment for MON2, then add a temperature pin assignment to MON1

• Choose MON2 then the GUI will switch back to the Pin Assignment tab.





• Switch to the Other Config tab then enter Temp Cal Gain (200) and Temp Cal Offset (-50).

• Press the Write to Hardware Button and OK the window below. Fusion will restart.

• Once Fusion restarts, press the Store RAM to flash and accept the response.





• Press and release the EVM RESET (S1) button and the on EVM temperature sensor will provide rail#1 load temperature.

5.8 Input Current Monitoring

An onboard current monitor is provided to measure VR1 load current. MON3 can be used to monitor VR1output current when the shunt on J28 is in the C1 position. When J26 (C1) is installed, VR1 output load(R74) is connected causing an increase in current which can be measured by MON3 and at TP18.

• Use TP18 (C1) to measure the current monitor output voltage.• Current (in amperes) = 0.5 × VC1 where VC1 is the voltage at TP18.• The voltage at TP18 is scaled by a factor of 2 prior to sampling at MON3.• Set the GUI Iout Cal Gain = 1000mΩ and the Iout Cal Offset = 0A.

5.8.1 Basic Process for Adding Current Monitoring to a Rail

A basic procedure to add current monitoring to rail #1, starting with the previously modified (addingtemperature) configuration will follow. Ensure that rail #1 is selected in the upper right corner.










• Delete the current pin assignment for MON3 and add a current pin assignment to MON1.

• Choose MON3 then the GUI will switch back to the Pin Assignment tab.





• Switch to the Other Config tab and enter Iout Cal Gain (1000) and Iout Cal Offset (0).

• Press the Write to Hardware Button and OK the window below. Fusion will restart.

• Once Fusion restarts, press the Store RAM to flash and accept the response.





• Press and release the EVM RESET (S1) button and the on EVM current monitor will provide rail #1load current.

5.9 Closed Loop Voltage Margining

The output voltage of VR1-4 can be varied from nominal in a closed loop fashion for voltage margining.Four duty cycle modulated GPIO signals (FPWM1-4) are filtered to control the rail output voltage. TwoGPIO – feedback node filter configurations are provided; simple R-C-R or R-C-buffer-R. Jumpers provideselection of either the simple or buffered method. Install J22, J25, J30, or J33 in either the RC (for R-C-R)or MRGx (for R-C-buffer-R).

5.9.1 Basic Process for Voltage Margining a Rail

A basic procedure to voltage margin rail #1, starting with the EVM default configuration will follow. Formore information on voltage margining please refer to application note (SLVA375). Ensure that rail #1 isselected in the upper right corner.

NOTE: Ensure that S10 (STAT LED) is in the EN position.



http://www.ti.com/lit/pdf/SLVA375








• Delete the pin assignment for FPWM1 and select Margin on rail #1

• Choose FPWM1 then the GUI will switch back to the Pin Assignment tab.





• Click the Configure link for rail #1

• Enter Duty Cycle in percent and Frequency.• Press the Write to Hardware button and OK the window below (note that the window below may not

always be present depending on the version of the GUI used.





• Install a shunt in the RC position of J22. Rail #1 and rail #2 may experience a fault and may turn off.• Press the Store RAM to flash and accept the response.• Press and release the EVM RESET (S1) button and rail #1 can now be voltage margined.• Navigate to the GUI Monitor tab with rail #1 selected and toggle the margin window

none-low-high-none switches. Note that rail #1 voltage margins.





5.10 Fan Interface

The UCD90124 provides support for up to four fans. The UCD90124EVM provides a single fan interfacefrom J66. The UCD90124EVM interface can support three fan types including 2-wire, 3-wire, and 4-wire.The FAN connector has four terminals (12V, GND, Tach, and PWM).

5.10.1 Fan Tach Input

The fan tach signal is an input to the UCD90124 providing an indication of fan speed based on signalfrequency. The EVM Tach input signal is conditioned prior to being connected to the UCD90124 and caninterface with either a 3.3V or 5V signal using J72. Install a shunt in the TACH position of J67 to connectthe conditioned signal to the UCD90124. The TACH signal at J66-2 is inverted by the conditioning circuitryprior to J67.

5.10.2 Fan PWM Output

The fan PWM signal is an output from the UCD90124 providing fan speed control using a pulse widthmodulated signal. The UCD90124 output signal can come from either PWM1 (J67 in the PWM position) orFPWM5 (J70 in the FPWM5 position). The PWM1 or FPWM5 output signal can directly drive the fan PWMinput (four wire fan with J68 in the 4W position) or be conditioned prior the fan PWM input (two or threewire fan with J68 in the 2/3W position). When J68 is in the 2/3W position, the PWM signal at J66-3 candrive or modulate the ground of a two or three wire fan. When J68 is in the 2/3W position, the PWM signalat J66-3 can provide a 3.3V, 5V, or 12V level PWM signal with appropriately installed shunts on J69 foruse with four wire fans. When J68 is in the 2/3W position, the PWM1 or FPWM5 signal at J70 is invertedby the conditioning circuitry prior to J66-3.

5.10.3 Fan Temperature Simulation

An onboard potentiometer (TEMP MON) can be used to simulate analog temperature when used inconjunction with the fan interface for fan speed control. The potentiometer voltage can be monitored atTP54 (TEMP MON) through MON12. Install a shunt in the 12E position of J61 and install J71 (EVR12).The potentiometer voltage can be varied from 0 to approximately 4.2V. This voltage is scaled by 2 beforebeing sampled at MON12.




www.ti.com Bill of Materials

6 Bill of Materials

Table 6. UCD90120/4EVM Bill of Materials

CountRefDes Value Description Size Part Number MFR

UCD90124EVM UCD90120EVM

2 2 C1, C16 330 µF Capacitor, Aluminum, 16V, ±20% 0.328 × 0.328 inch EEE-FK1C331P Panasonic

3 3 C12, C13, C15 4.7 µF Capacitor, Ceramic, 25V, X5R, 20% 0805 ECJ-2FB1E475M Panasonic

3 3 C2, C3, C17 4.7 µF Capacitor, Ceramic, 50V, X5R, 20% 1812 C4532X5R1H475MT TDK

3 3 C25, C59, C65 1000 pF Capacitor, Ceramic, X7R, 16V, 10% 0603 Std Std

8 8 C26, C27, C30, C31, 10 µF Capacitor, Ceramic, 10V, X5R, 10% 0805 C2012X5R1A106K TDKC33, C34, C43, C44

2 2 C28, C39 33 pF Capacitor, Ceramic, 50V, COG, 5% 0603 Std Std

4 4 C32, C35, C41, C46 47 pF Capacitor, Ceramic, X7R, 16V, 10% 0603 Std Std

4 4 C4, C23, C37, C45 0.01 µF Capacitor, Ceramic, 50V, X7R, 10% 0603 C1608X7R1H103K TDK

3 3 C40, C62, C63 22 pF Capacitor, Ceramic, 50V, C0G, 5% 0603 Std. Std

9 9 C42, C48, C49, C50, 1.0 µF Capacitor, Ceramic, X7R, 16V, 10% 0603 Std StdC51,C53–C56

1 1 C5 100 µF Capacitor, Tantalum, 10V, 20% 7343(D) TPSD107M010R0080 AVX

1 1 C57 1 µF Capacitor, Ceramic, 25V, X7R, 20% 0805 Std Std

1 1 C6 100 µF Capacitor, Tantalum, 10V, 10% 6032 TAJC107K010R AVX

1 1 C68 1 µF Capacitor, Tantalum, 16V, 20% 3216 293D105X0016A2T Vishay

3 3 C7, C69, C71 10 µF Capacitor, Tantalum, 10V, 20% 3216 293D106X0010A2T Vishay

23 23 C8–C11, C14, 0.1 µF Capacitor, Ceramic, X7R, 16V, 10% 0603 Std StdC18–C22, C24, C29,C36, C38, C47, C52,C58, C60, C61, C64,C66, C67, C70

2 2 D1, D4 B340A Diode, Schottky, 3A, 40V SMA B340A Diodes Inc

1 1 D11 BZX84B5V1LT1G Diode, Zener, 5.1-V, 2%, 225-mW SOT-23 BZX84B5V1LT1G Diodes

1 1 D2 10BQ015 Diode, Schottky, 1A, 15V SMB 10BQ015 IR

1 1 D26 MMSZ5242BT1G Diode, Zener, 20-mA, 12-V, 0.5W SOD123 MMSZ5242BT1G On Semi

1 1 D27 SMAJ24A Diode, Transient Voltage Suppressor, 400W, SMA SMAJ24A Littlefuse24V

15 15 D29, D30, D32, D34, LN1371G Diode, LED, Green, 20-mA, 0.9-mcd SMD LN1371G PanasonicD36, D38, D40, D42,D44, D46– D49, D54,D55

1 1 D3 TLV1117-33IDCY IC, Adj., 3.3 V, 800mA LDO Voltage Regulators SOT-223 TLV1117-33CDCY TI

15 15 D5, D9, D14–D25, D28 SML-LXT0805SRW-TR Diode, LED, Red, 100 mA 0805 SML-LXT0805SRW-TR Lumex

4 4 D50– D53 GL05T Diode, TVS, Low Cap., V(RM) = 5 V, 300 W Pk. SOT-23 GL05T Vishay

1 1 D56 SSF-LXH305GD-TR Diode, LED, Green, 20 mA, 30 mcd SMD SSF-LXH305GD-TR Lumex




Bill of Materials www.ti.com

Table 6. UCD90120/4EVM Bill of Materials (continued)



1 1 D6 MBRA130 Diode, Schottky, 1A, 30V SMA MBRA130 IR

1 1 D7 1SMB5922BT3G Diode, Zener, 7.5V, 3W SMB 1SMB5922BT3G On Semi

12 12 D8, D10, D12, D13, LN1471Y Diode, LED, Amber, 20-mA, 0.4-mcd 0.114 × 0.049 inch LN1471YTR PanasonicD31, D33, D35, D37,D39, D41, D43, D45

3 3 FB1, FB2, FB3 220 Ω Ferrite Bead, 2A, 0.050 mΩ 0805 BLM21P221SN Murata

1 1 J1 RAPC 712 Connector, DC Jack, Pin dia.2.5mm, Shell dia 0.57 × 0.35 inch RAPC 712X Switchcraft5.5mm

2 2 J18, J69 PEC04DAAN Header, Male 2x4-pin, 100mil spacing 0.20 × 0.40 inch PEC04DAAN Sullins

1 1 J2 ED120/2DS Terminal Block, 2-pin, 15-A, 5.1mm 0.40 × 0.35 inch ED120/2DS OST

2 2 J24, J28 PEC03DAAN Header, Male 2x3-pin, 100mil spacing 0.20 inch × 0.30 PEC03DAAN Sullins

1 1 J3 UX60-MB-5ST Connector, Recpt, USB-B, Mini, 5-pins, SMT 0.354in × 0.303in UX60-MB-5S8 Hirose

29 29 J4, J6, J7, J8, J11, J12, PEC02SAAN Header, Male 2-pin, 100mil spacing, 0.100 inch × 2 PEC02SAAN SullinsJ13, J19, J21, J23, J26,J27, J29, J31, J38, J39,J40, J41, J46, J47, J52,J53, J58, J59, J64, J65,J71, J78, J79

38 38 J5, J10, J14, J15, J16, PEC03SAAN Header, Male 3-pin, 100mil spacing, 0.100 inch × 3 PEC03SAAN SullinsJ17, J20, J22, J25, J30,J32, J33, J34, J35, J36,J37, J42, J43, J44, J45,J48, J49, J50, J51, J54,J55, J56, J57, J60, J61,J62, J63, J67, J68, J70,J72, J75, J76

1 1 J66 ED120/4DS Terminal Block, 4-pin, 15-A, 5.1mm 0.80 × 0.35 inch ED120/4DS OST

2 2 J73, J74 PEC10DAAN Header, Male 2x10-pin, 100mil spacing 0.100 inch × 10 × 2 PEC10DAAN Sullins

1 1 J77 N2510-6002-RB Connector, Male Straight 2x10 pin, 100mil 0.338 × 0.788 inch N2510-6002-RB 3Mspacing, 4 Wall

1 1 J9 PEC07DAAN Header, Male 2x7 pin, 100mil spacing 0.100 inch × 2×7 PEC07DAAN Sullins

1 1 L1 33 µH Inductor, SMT, 2.2A, 75mΩ 0.484 × 0.484 inch MSS1260-333MLB Coilcraft

2 2 L2, L3 2.2 µH Inductor, SMT, 1.5A, 110mΩ 0.118 × 0.118 inch LPS3015-222MLB Coilcraft

1 1 Q1 MMBT2222A Transistor, NPN, 40 V, 500 mA SOT-23 MMBT2222A Fairchild

1 1 Q2 FCX491A Transistor, NPN, 40V, 2A, 300 hfe SOT89 FCX491A Zetex

4 4 Q3, Q4, Q11, Q12 FDN5630 MOSFET, N-ch, 60-V,1.7-A, 100-mΩ SSOT3 FDN5630 Fairchild

1 1 Q5 MMBT2907ALT1 Transistor, PNP, -60V, -600mA, 225-W SOT23 MMBT2907ALT1 On Semi

5 5 Q6, Q7, Q8, Q9, Q10 BSS84 Transistor, PFET, -50 V, 130 mA, Rds(ON) < 10 SOT-23 BSS84 FairchildΩ at V(gs) = 5 V

1 1 R1 590 Resistor, Chip, 1/10W, 1% 0805 Std Std








10 10 R11, R110, R111, 15.0K Resistor, Chip, 1/16W, 1% 0603 Std StdR134, R135, R144,R145, R166, R167,R238


8 8 R117, R119, R121, 750 Resistor, Chip, 1/10W, 1% 0805 Std StdR123, R155, R157,R159, R161


23 23 R12, R17, R25, R32, 100K Resistor, Chip, 1/16W, 1% 0603 Std StdR45, R59, R62, R66,R67, R70, R83, R87,R90, R91, R94, R177,R179, R235, R237,R239, R241, R251,R252



8 8 R128, R129, R130, 402 Resistor, Chip, 1/10W, 1% 0805 Std StdR131, R170, R171,R172, R173

29 29 R15, R23, R30, R42, 332 Resistor, Chip, 1/10W, 1% 0805 Std StdR154, R195, R203,R204, R205, R207,R208, R211, R212,R216, R217, R218,R219, R220, R221,R222, R223, R226,R227, R230, R231,R232, R233, R234,R236




1 1 R186 5K Potentiometer, Multi-Turn, 3/8 Hole 0.375 sq inch 3386P-1-502LF Bourns

2 2 R196, R197 10K Resistor, Chip, 1/16 W, 5% 0603 Std. Std.

2 2 R8, R14 0 Resistor, Chip, 1/16W, 1% 0603 Std Std



5 5 R209, R210, R242, 2.2K Resistor, Chip, 1/16 W, 5% 0603 Std. Std.R243, R245

1 1 R213 1.00M Resistor, Chip, 1/16 W, 1% 0603 Std. Std.

3 3 R214, R215, R255 1.5K Resistor, Chip, 1/16 W, 5% 0603 Std Std








2 2 R26, R53 20K Resistor, Chip, 1/16W, 1% 0603 Std Std

2 2 R27, R29 4.02K Resistor, Chip, 1/16W, 1% 0603 Std Std

63 63 R3, R5, R6, R7, R9, 10K Resistor, Chip, 1/16W, 1% 0603 Std StdR10, R13, R16, R19,R21, R22, R24, R28,R31, R33, R44, R96,R97, R98, R99–R103,R106–R109, R114,R115, R124, R125,R132, R133, R138,R139, R142, R143,R148, R149,R150–R153, R162,R163, R174–R176,R180–R182, R185,R187–R191, R194,R198, R200, R247,R248

24 24 R34–R41, R43, 33 Resistor, Chip, 1/16W, 5% 0603 Std StdR46–R48, R178, R224,R225, R228, R229,R249, R250,R253–R258

1 1 R4 3.24k Resistor, Chip, 1/16W, 1% 0603 Std Std



11 11 R54, R183, R184, 1K Resistor, Chip, 1/16W, 1% 0603 Std StdR192, R193, R199,R201, R202, R206,R244, R246

6 6 R55, R68, R76, R88, 30.1K Resistor, Chip, 1/16W, 1% 0603 Std StdR89, R92

1 1 R56 732K Resistor, Chip, 1/16W, 1% 0603 Std Std


24 24 R58, R61, R71, R73, 7.50K Resistor, Chip, 1/16W, 1% 0603 Std StdR79, R80, R93, R95,R104, R105, R112,R113, R126, R127,R136, R137, R140,R141, R146, R147,R164, R165, R168,R169

2 2 R60, R69 150K Resistor, Chip, 1/16W, 1% 0603 Std Std

2 2 R63, R72 1.20M Resistor, Chip, 1/16 W, 1% 0603 Std. Std.










1 1 R74 24 Resistor, Chip, 1W, 5% 2512 STD STD

1 1 R75 0.1 Resistor, Chip, 1/2W, 1% 2010 STD STD


1 1 R81 31.6K Resistor, Chip, 1/16W, 1% 0603 Std Std

1 1 R82 14.3K Resistor, Chip, 1/16W, 1% 0603 Std Std




1 1 RT1 5 Ohms Inrush current limiter, 4.7A, 0.11 Ω 0.180 × 0.550 CL-150 GE Sensing

1 1 S1 KT11P2JM34LFS Switch, SPST, PB Momentary, Sealed 0.245 × 0.251 KT11P2JM34LFS C & KWashable

1 1 S10 EG1218 Switch, 1P2T, Slide, PC-mount, 200-mA 0.46 × 0.16 EQ1218 E_Switch

8 8 S2, S3, S4, S5, S6, S7, MHS12304 Switch, ON-OFF-ON Miniature Slide 0.268 × 0.630 inch MHS12304 TycoS8, S9

2 2 TP1, TP2 5010 Test Point, Red, Thru Hole 0.125 × 0.125 inch 5010 Keystone

6 6 TP11, TP17, TP37, 5011 Test Point, Black, Thru Hole 0.125 × 0.125 inch 5011 KeystoneTP43, TP55, TP63

32 32 TP3, TP4, TP6, TP9, 5012 Test Point, White, Thru Hole 0.125 × 0.125 inch 5012 KeystoneTP12, TP14, TP18,TP19, TP20,TP24–TP27, TP32,TP33, TP36, TP38,TP39, TP40, TP44,TP45, TP48, TP49,TP54, TP56, TP57,TP58, TP61, TP62,TP65, TP66, TP67

26 26 TP5, TP8, TP10, TP13, 5014 Test Point, Yellow, Thru Hole 0.125 × 0.125 inch 5014 KeystoneTP15, TP16, TP21,TP22, TP23, TP28,TP29, TP30, TP31,TP34, TP35, TP41,TP42, TP46, TP47,TP50, TP51, TP52,TP53, TP59, TP60,TP64

6 6 TP68–TP73 5016 Test Point, SM, 0.150 x 0.090" 0.185 × 0.135 5016 Keystone

1 1 TP7 5013 Test Point, Orange, Thru Hole 0.125 × 0.125 inch 5013 Keystone

1 1 U1 TPS5420D IC, Switching Step-Down Regulator, 36V, 2A SO8 TPS5420D TI

2 2 U10, U11 SN74LV126ADBR IC, Quad Bus Buffer with 3-State Outputs VSSOP-14 SN74LV126ADBR TI

1 1 U12 SN74LVC2G125DCU IC, Dual Bus Buffer with 3-State Outputs VSSOP-8 SN74LVC2G125DCU TI

1 1 U13 24LC64-I/SN IC, Serial EEPROM, 64K, 2.5-5.5V, 400 kHz SO-8 24LC64-I/SN MicrochipMax








1 1 U14 SN74CBTLV3125DBQ IC, Low Voltage Quad FET Bus Switch TSSOP-16 SN74CBTLV3125DBQ TI

1 1 U15 TUSB3210PM IC, USB, General Purpose Device Controller PQFP-64 TUSB3210PM** TI

1 1 U16 TPS76333DBV IC, Micro-Power 100 mA LDO Regulator SOT23-5 TPS76333DBV TI

2 2 U2, U3 SN74LVC2G04DBV IC, Dual Schmitt-Trigger Inverter SOT23-6 SN74LVC2G04DBV TI

0 1 U4 UCD90120RGC IC, Digital PWM System Controller PFC-64 UCD90120RGC TI

1 0 U4 UCD90124RGC IC, Digital PWM System Controller w/Fan PFC-64 UCD90124RGC TIControl

1 1 U5 TPS62420DRC IC, 2.25 MHz Dual Step Down Converter QFN10 TPS62420DRC TI

1 1 U6 TLC274CD IC, CMOS, Quad Operational Amplifier SO14 TLC274CD TI

1 1 U7 MCP9700T-E IC, Low-Power Voltage output Temperature SC70-5 MCP9700T-E MicrochipSensor

1 1 U8 INA196AIDBV IC, Current Shunt Monitor, –16V to 80V SOT23-5 INA196AIDBV TICommon-Mode Range

1 1 U9 TPS71202DRC IC, Dual 250mA Output, Ultralow Noise, High DRC10 TPS71202DRC TIPSRR, LDO Linear Regulator

1 1 Y1 12MHZ Crystal, 12-MHz, 20 pF, ±50 PPM at 25C 0.185 × 0.532 CY12BPSMD Crystek

57 57 – Shunt, Black 100-mil 929950-00 3M

4 4 SJ-5003 BUMPON HEMISPHERE 0.44×0.20 BLACK SJ-5003 3M

1 1 – PCB, 6 In × 5 In × 0.062 In HPA459 Any

1 1 USB Cable, 5-pin, B-Mini Male to Type A Male, AK672M/2-2-R Assman2m




www.ti.com Layout Guidelines, EVM Schematic, and Assembly Drawings

7 Layout Guidelines, EVM Schematic, and Assembly Drawings

7.1 Layout Guidelines

Thermal pad

The thermal pad provides a thermal and mechanical interface between the device and the printed circuitboard (PCB). While device power dissipation is not of primary concern, a more robust thermal interfacecan help the internal temperature sensor provide a better representation of PCB temperature. Connect theexposed thermal pad of the PCB to the device VSS pins and provide at least a 4 × 4 pattern of PCB viasto connect the thermal pad and VSS pins to the circuit ground on other PCB layers.

Supply voltage decoupling

Provide power supply pin bypass to the device as follows:

• 0.1µF, X7R ceramic in parallel with 0.01µF, X7R ceramic at pin 47 (BPCAP)• 0.1µF, X7R ceramic in parallel with 4.7µF, X5R ceramic at pin 44 (V33D)• 0.1µF, X7R ceramic at pin 7 (V33DIO)• 0.1µF, X7R ceramic in parallel with 4.7µF, X5R ceramic at pin 46 (V33A)

Digital output signals

Depending on use and application of the various GPIO signals used as digital outputs, some impedancecontrol may be desired to quiet fast signal edges. For example, when using the FPWM pins for fan controlor voltage margining the pin will be configured as a digital clock signal. Route these signals away fromsensitive analog signals. It is also good design practice to provide a series impedance of 20–33 Ω at thesignal source to slow fast digital edges.

PMBus clock and data

Route PMBUS_CLK and PMBUS_DATA in a careful fashion away from sensitive analog signals. Providea series impedance of 20–33 Ω at the signal source.

7.2 EVM Schematic

The searchable PDF of the schematic is appended to this User's Guide.

7.3 Assembly Drawings

The assembly drawings are appended to this User's Guide. The topside and bottomside componentlayouts are searchable.




Evaluation Board/Kit Important Notice

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:

This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATIONPURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling theproduct(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided arenot intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,including product safety and environmental measures typically found in end products that incorporate such semiconductorcomponents or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regardingelectromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet thetechnical requirements of these directives or other related directives.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BYSELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDINGANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from allclaims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility totake any and all appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHERFOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive.

TI assumes no liability for applications assistance, customer product design, software performance, or infringement ofpatents or services described herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling theproduct. This notice contains important safety information about temperatures and voltages. For additional information on TI’senvironmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, orcombination in which such TI products or services might be or are used.

FCC Warning

This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATIONPURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, andcan radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of thisequipment in other environments may cause interference with radio communications, in which case the user at his own expensewill be required to take whatever measures may be required to correct this interference.

EVM Warnings and Restrictions

It is important to operate this EVM within the input voltage range of 0 V to 20 V and the output voltage range of 0 V to 5 V .

Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there arequestions concerning the input range, please contact a TI field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to theEVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the loadspecification, please contact a TI field representative.

During normal operation, some circuit components may have case temperatures greater than 85°C. The EVM is designed tooperate properly with certain components above 85°C as long as the input and output ranges are maintained. These componentsinclude but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types ofdevices can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes nearthese devices during operation, please be aware that these devices may be very warm to the touch.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright © 2010, Texas Instruments Incorporated

http://www.ti.com/esh

PWM

4

PWM

2PW

M1

PG

PI4

PG

PI3

PG

PI1

33R

40

33R

34

L3P3V

RE

SE

T

SG

PIO

20

SG

PIO

19

SG

PIO

22

SG

PIO

21

12

J17

3P3V

J16

3P3V R24

10K

R22

10K

3P3V R16

10K

R13

10K

3P3V

R25

100K

R17

100K

0.1uFC

10

3P3V

3P3V

TP6

TP7

D1

B340A

5 Ohm

sR

T1

PWM

3

12VB

US

33R

3833

R36

PG

PI2

R29

4.02K

TP5

V33D

C16

330uF

J4

TP1

C17

4.7uF

3P3V

1 R20

1000pFC

25 R53

20K

V33D

10KR

21

J8

TP2

0.1uFC

18

0.1uFC

14

0.01uFC

23

C15

4.7uF

5VB

US

200R

20

10BQ

015D

2

2 J12

J11 2J7 J6 L3P3V

10K R5

1

10K R7

10K R6

R80

10K R9

10KR

10 3P3V

R44

10K

R28

10K

R31

10K

R33

10K

J10

R45

100K

R32

100K

0.1uFC

24

D13

LN1471Y

D12

LN1471Y

D10

LN1471Y

D8

LN1471Y

84.5KR

4984.5KR

51

J15

0.1uFC

8

J13

C3

4.7uF

0.1uFC

21

V33A

C5

100uF

TP4

BP

CA

P

22 C6

100uF

J14

J5

PM

BU

S_C

TRL

PM

BU

S_A

LER

T

PM

BU

S_C

LK

SR12_M

ON

SR10_M

ON

SR9_M

ON

SR13_M

ON

SR7_M

ON

SR6_M

ON

SR4_M

ON

SR3_M

ON

SR1_M

ON

33R

47

33R

41

33R

35

TRS

T*S

GP

IO22

SG

PIO

20S

GP

IO19

SG

PIO

17S

GP

IO16

SG

PIO

4S

GP

IO3

SG

PIO

1

SG

PIO

15

FPW

M8

FPW

M7

FPW

M5

FPW

M4

FPW

M2

FPW

M1

TCK

TDO

TRS

T*TM

S

PWM

4

PWM

3

PWM

2

PWM

1

R42

332

34 U

3:BS

N74LV

C2G

04DB

V

R30

332

3P3V

R23

332

3P3V

AD

DR

SE

NS

1

AD

DR

SE

NS

0P

MB

US

_DA

TA

SR8_M

ON

SR11_M

ON

R26

20KR

274.02K

SR2_M

ON

SR5_M

ON

0.1uFC

20

12VB

US

C4

0.01uF

33R

48

33R

3933

R37

33R

4633

R43

SG

PIO

21

TRC

K

SG

PIO

18

SG

PIO

13

SG

PIO

2

0.1uFC

22

0.1uFC

19D

9

C12

4.7uFC

134.7uF

0.1uFC

9

V33D

D5

10KR

3

C7

10uF

5.0 V2

133uH

L1

SG

PIO

14

FPW

M3

FPW

M6

TRC

K TDI

TP3

0R

18

10KR

19

0R

14

16

2 5U

3:A

SN

74LVC

2G04D

BV

R15

332

34 U

2:BS

N74LV

C2G

04DB

V

16

2 5U

2:A

SN

74LVC

2G04D

BV

36.5KR

5236.5K

R50

J18

21 3J1

330uF C1

12

J2

1K

R54

4 1

3 2

S1

D11

BZX

84B5V

1LT1G

FCX

491AQ

2

3P3V

_US

B

C2

4.7uF

6G

ND

5E

NA

7V

IN1

BO

OT

8P

H2

NC

3N

C4

VS

NS

TPS

5420DU

1

12 220 O

hmFB

1

B340A

D4

R4

3.24k

R1

590

31

42

D3

TLV1117-33ID

CY

J9

VR

EG

33FB

64AVSS3

46V33A

26DVSS2

44V33DIO2

47BPCAP

19FP

WM

3/GP

IO7

60P

MB

US

_AD

DR

1

27P

MB

US

_ALE

RT

41P

WM

4/GP

I4

31P

WM

1/GP

I1

53N

C2

54M

ON

12

63M

ON

9

6M

ON

6

3M

ON

3

30G

PIO

15

23FP

WM

7/GP

IO11

20FP

WM

4/GP

IO8

17FP

WM

1/GP

IO5

39TM

S/G

PIO

22

36TC

K/G

PIO

19

33G

PIO

16

13G

PIO

3

49AVSS1

28P

MB

US

_CTR

L61

PM

BU

S_A

DD

R0

9R

ES

ET

32P

WM

2/GP

I2

15P

MB

US

_CLK

16P

MB

US

_DA

TA

42P

WM

3/GP

I3

56M

ON

1351

NC

1

55N

C3

57N

C4

59M

ON

762

MO

N8

50M

ON

1052

MO

N11

2M

ON

2

1M

ON

1

4M

ON

45

MO

N5

58V33FB

65TPAD

8DVSS1

43DVSS3

45V33D

7V33DIO1

24FP

WM

8/GP

IO12

29G

PIO

14

18FP

WM

2/GP

IO6

21FP

WM

5/GP

IO9

22FP

WM

6/GP

IO10

40TR

ST

10TR

CK

34G

PIO

1735

GP

IO18

37TD

O/G

PIO

20

11G

PIO

112

GP

IO2

14G

PIO

425

GP

IO13

38TD

I/GP

IO21

48AVSS2

U4

UC

D90120/4R

GC

FPW

M4

R2_EN

SG

PIO

2

CL M

RG

CL M

RG

CL M

RG

OP B

YP

R1_EN

R2_EN

R3_EN

SG

PIO

3

5VB

US

R4_EN

SG

PIO

4

R10010K

R96

10K 3P3VTP

24

100KR

94

100KR

83

100KR

70

100KR

62

TP25

3P3V

12 220 O

hmFB

2

0.1uFC

29

OP B

YP

OP B

YP

OP B

YP

CL M

RG

TP26 R

8830.1K

R82

14.3K

5VB

US

R89

30.1K

R81

31.6K

C39

33pF

R72

1.20M

C31

10uF

R90

100K

C40

22pF

TP27

0.01uFC

45

J29

21

L3

2.2uH

21

L2

2.2uH

1.0uFC

42

C34

10uF

C27

10uF

C44

10uF

TP19

R69

150K

R64

681K

R60

150K

R56

732K

D17

D15

R65

316 VR

2

D14

R57

374 VR

1

30.1K

R92

30.1K

R76

TP16

J27

TP13

J23

TP8

J19

R93

7.50K

TP23

TP21

R79

7.50K

R73

7.50KTP

15

R71

7.50K

R61

7.50K J20

5VB

US

TP14

24.0

R74

VR

1

3P3V

J34

J38

J21

R63

1.20M

VR

3

R85

49

VR

4

TP22

J31

30.1K

R68

30.1K

R55

R95

7.50K

R80

7.50KJ32

R58

7.50K

TP10

0.1uFC

38

3V

OU

T

2G

ND

4V

DD

5N

C

1N

C

U7

MC

P9700T-E

R77

10

0.1uFC

36

R7810

R1_EN

SG

PIO

1

FPW

M3

FPW

M2

R1_FB

R3_EN

EV

R4

EV

R3

47pFC

46

47pFC

35

FPW

M1

R10110K

R10210K

R97

10KR

9810K 3P3V

R4_FB

J30

R3_FB

J25

R2_FB

J22

5VB

US

R10310K

R99

10K 3P3V

R91

100K

R4_EN

10uF

C30

R59

100K

C43

10uFD

16

TP17

TP20

C33

10uF

C28

33pFC

2610uF

TP9

EV

R2

EV

R1

54

123

U8

INA

196AID

BV

TP18

0.01uF

C37

0.11/2 W

R75

47pFC

41

47pFC

32

J35J36

J39

J33

J37

J41

J40

R67

100KR

66100K

R84

243

TP12

TP11

J28

J24

12

220 Ohm

FB3

J26

3V

IN8

GN

D4

FB1

5D

EF_1

1A

DJ2

2M

de/Data

7E

N1

6S

W1

9E

N2

11P

wP

d

10S

W2

U5

TPS

62420DR

C

100KR

87

SR2_M

ON

SR1_M

ON

SR4_M

ON

SR3_M

ON

162KR

86

10+

9-

83OU

TU

6:C

TLC274C

D

12+

13-

144OU

TU

6:D

TLC274C

D

7FB

2/NC

6N

R

9FB

1/NC

8E

N2

4O

UT2

1IN

10E

N1

5G

ND

2N

C3

OU

T1

11P

wP

d

U9

TPS

71202DR

C

5+

6-

720UT

U6:B

TLC274C

D

4

3+

2-

1

11 U6:A

TLC274C

D

2 2 22

2/3 Wire

12VB

US

5VB

US

3P3V

VR

8

VR

7

VR

5

EV

R12

EV

R10

EV

R9

VR

12

VR

11

VR

9

FPW

M5

PWM

1

R17410K

R16210K 3P3V

R15210K

R14210K

R13810K

R13210K 3P3V

J44

3P3V

J58 J52 J46

R17510K

R16310K

R15310K

R14310K

R13910K

R13310K

J45

TP58 J59 J53 J47

TP33

FETP

WM

1

SFTA

C1

4 Wire

J68

TP64

EV

R12

R177

100K 10KR

10710K

R106

3P3V

SFP

WM

1

D22

1.0uFC

48

R117

750

5VB

US

5VB

US

D23

1.0uFC

49

R119

750

10KR

185

C57

1 uF

D24

R121

750

10KR

109

D25

R173402

R123

750R

122280

TP61

VR

11

TP54

VR

9

TP39

VR

7

TP36

VR

5

TP63

VR

12

TP55

VR

10

TP43

VR

8

TP37

VR

6

TP52

TP34

VR

6

TP28

R164

7.50K

TP59

R146

7.50K J54

R136

7.50K

R126

7.50K

TP41

R104

7.50K

TP30

J42

TP53

EV

R11

TP35

TP29

15.0K

R145

VR

10

15.0K

R111

TP60

TP42

TP31SR

9_MO

N

J70

J67

J62

J50

J56

3P3V

R11410K

R12410K

J64

J63

J51

J57

R12510K

R11510K

J65

TP45

TP49

R1831K

10KR

14810K

R149

1.0uFC

53

R155

750

D18

5VB

US

1.0uFC

54

R157

750

D19

R187

10KJ72

J69

3 124

J66

R159

750

D20

10KR

151

R161

750R

160549

D21

R131402

TP46

R168

7.50K

R140

7.50K

TP50

R112

7.50KJ48

TP47

15.0K

R167

15.0K

R135

TP51

J60

PWM

TO FA

N

FETD

RN

1PW

M TO

FAN

TAC

H FR

OM

FAN

R12_EN

R8_EN

SG

PIO

22S

GP

IO18

R7_EN

R11_EN

SG

PIO

20S

GP

IO16

R9_EN

R5_EN

SG

PIO

19S

GP

IO13

PWM

TO FA

N

R6_EN

R5_EN

10KR

181

FAN

GN

D

FAN

TAC

HFA

N +12V

R11_EN

R12_EN

EV

R8

EV

R6

EV

R5

SR7_M

ON

SR6_M

ON

SR11_M

ON

SR10_M

ON

FPWM

TO FA

N

33R

178

R179

100K

TP57

3P3V

SG

PIO

21S

GP

IO17

R10_EN

R6_EN

3P3V

TP32

3P3V

2

13

R1865K 5V

BU

S

TAC

H FR

OM

FAN

3P3V

R170402

R9_EN

R10_EN

0.1uFC

52

R116158

10KR

182

10KR

180

1KR

184

FAN

PWM

12VB

US

R172402

R171402

1.0uFC

511.0uF

C50

R118191

R120232 10K

R108

R7_EN

R8_EN

TP62

TP56

EV

R7

TP40

TP38

SR8_M

ON

15.0K

R144

15.0K

R110

SR5_M

ON

R165

7.50K

SR12_M

ON

R147

7.50K J55

R137

7.50K

R127

7.50K

R105

7.50K J43

FDN

5630Q

4

TP44

TP48

3P3V

J71

FDN

5630Q

3

R176

10K

R154332

R128402

0.1uFC

47

1.0uFC

561.0uF

C55

R156392

R158464 10K

R150

R129402

R130402

52A

21A

62B

7G

ND

11O

E

31B

42O

E10

3OE

134O

E

83B

93A

124A

14V

CC

114B

SN

74LV126A

DB

RU

11

52A

21A

62B

7G

ND

11O

E

31B

42O

E10

3OE

134O

E

83B

93A

124A

14V

CC

114B

SN

74LV126A

DB

RU

10

15.0K

R166

15.0K

R134

R169

7.50K

R141

7.50K

R113

7.50KJ49

J61

D27

SM

AJ24A

D26

MM

SZ5242B

T1G

S7

S6

S3

S2

S9

S8

S5

S4

33R

229

33R

224

SG

PIO

22

SG

PIO

21

SG

PIO

19

SG

PIO

18

SG

PIO

16

SG

PIO

13

SG

PIO

3

SG

PIO

2

LA1_CLK C

LK

R236

332

332R

230

R220

332

332R

211

GN

D

+5V DN

C

SCI_R

X

GN

D

CLK

PW

M1

PW

M3

PW

M4

FPW

M2

FPW

M3

FPW

M5

FPW

M6

FPW

M8

R238

15.0K

3P3V

_US

B

1000pFC

65 3P3V

_US

B

1.5KR

255

0.1uFC

64 R214

1.5K

0.1uFC

60

R11

15.0K

33 R256 C

6222pF

3P3V

_US

B

C63

22pF

3P3V

_US

B

R200

10K

Q7

BS

S84

R244

1K

Q10

BS

S84 D

50G

L05T

ALERT

D28

D51

GL05T

D53

GL05T

R2061K

3P3V

SG

PIO

15

SG

PIO

20

SG

PIO

17

SG

PIO

4

SG

PIO

1

TP69

TP68

R232

332

332R

222

R216

332

332R

204

DN

C

TP72

TP71

R251

100K

R24710K

LN1371G

D55

LN1371G

D46

LN1371G

D48

LN1371G

D42

LN1371G

D40

LN1371G

D34

LN1371G

D36

LN1371G

D30

TP65

TP73

3P3V3P3V

FPW

M1

PW

M2

FPW

M7

FPW

M4

J78

1uFC

68

1A

02

A1

3A

24

Vss

5S

DA

6S

CL

7W

P

8V

cc

24LC64-I/S

N

U13

0.1uFC

70

R194

10K

0.1uFC

66100KR

237

3P3V

0.1uFC

61

R209

2.2K

R195332

R196

10K

33R

22833

R225

J75J76

332R

234

332R

218

R226

332

R207

332

LN1371G

D54

LN1371G

D38

LN1371G

D44

LN1371G

D32

R201

1K

J74

R202

1K

PM

BC

TRL1/G

PIO

3

33R

258

33R

250

PM

BU

S_C

LK

PM

BU

S_D

ATA

CTR

L

SG

PIO

14

FPW

M8

FPW

M6

FPW

M5

FPW

M3

FPW

M2

SG

PIO

1

SG

PIO

3S

GP

IO4

SG

PIO

14S

GP

IO15

SG

PIO

17S

GP

IO18

SG

PIO

20S

GP

IO21

SCI_TX

+5V DN

C

0.1uFC

67

MB

RA

130

D6

33 R257

R240

200

R215

1.5KR

213

1.00M

R1991K

0.1uFC

11

C71

10uF

3P3V

_US

B

33R

25433

R253

33R

249Q

6B

SS

84Q

8B

SS

84Q

9B

SS

84

100KR

235

R243

2.2KR

2452.2K

R242

2.2K

3P3V

R1931K

3P3V

_US

B

R246

1K

D52

GL05T

R203

332

0.1uFC

58

R191

10KR

19010K

SG

PIO

14

R189

10KR

18810K

TP70

3P3V

SG

PIO

15

FPW

M7

FPW

M4

FPW

M1

R192

1K

SG

PIO

13

SG

PIO

2

SG

PIO

19

SG

PIO

16

TP66

SG

PIO

22

R252

100K

R24810K

LN1371G

D49

LN1371G

D47

LN1471Y

D41

LN1471Y

D43

LN1471Y

D35

LN1471Y

D37

LN1471Y

D31

TP67

DN

C

100KR

241

J79

SS

F-LXH

305GD

-TR D56

D7

1SM

B5922B

T3G3W

C69

10uF

64

18

61

21

58

24

55

27

52

30

49

15 12 9 6 3

34 43 46

16

17

101314 11 458 7 12

6362

22

6059

5756

2829

53

5150

33 36 3938 4541 44 4847

23

54

37 40

25

20

26

19

3132

35 42

TUS

B3210P

MU

15

12

12MH

ZY

1

3P3V

_US

B

100KR

12

5O

UT

4FB

1IN

3E

N

2G

ND

U16

TPS

76333DB

V

100KR

239

Q5

MM

BT2907A

LT1

R198

10KD29

LN1371G

R210

2.2K

R197

10K

11O

E2

1A3

2Y4

GN

D5

2A

61Y

72O

E

8V

CC

U12

SN

74LVC

2G125D

CU

J77

3P3V

FDN

5630Q

11

J73

FDN

5630Q

12

LN1471Y

D39

LN1471Y

D45

LN1471Y

D33

9N

C

62A

31A

113A

144A

72B

8G

ND

41B

1N

C2

1OE

103B

134B

16V

CC

154O

E

52O

E12

3OE

SN

74CB

TLV3125D

BQ

U14

S10

PM

BC

/SM

BC

/SC

L/GP

IO1

PM

BD

/SM

BD

/SD

A/G

PIO

0

PM

BU

S_C

TRL

332R

231

R221

332

332R

212P

MB

ALE

RT/S

MB

ALE

RT/G

PIO

2

1000pFC

59

PM

BU

S_A

LER

T

R233

332

332R

223

R217

332

332R

205

MM

BT2222A

Q1

NC

V+

DPDM

V-

J3

332R

219

R227

332

R208

332

5V

GPIO1

HV

MO

N

MO

N1

GPIO2

R3 ENPU

5V

PDGPIO3 PWM

FPWM5

GN

D

PUPDG

PI1

PDPUGP

I2G

PI3

PUGP

I4

PWM TAC

H

EV

R4 4E

GPIO4 V33D

TDI

TCK

12V

5E

5L GP

IO13

PU

3P3V

LV33D

TMS

TDO

VR

6

PU

12VB

GN

D PD

MO

N7 PD

12VB

8L

GP

IO18

PU

PU PUEN

9E

MO

N9 PD

GP

IO15 EN

GN

D

12L

PD

T1L2E2

PU

L

R2 EN

PD

PD

C1

L3E3

MO

N3

2/3W

4W

4L

6E

6L

R6 EN

R7 EN

V33D

7L

R5 EN FAULTOV NOM UV

10E

GP

IO14

PU

R7 ENPU

R8 ENPD

11L

EV

R1

T1

L3.3V

EV

R3

EV

R2 1E 1L

5V R4 EN

RC

MR

G2

MO

N2

12VB

US

PW

M

EV

R5

EV

R6

VR

5

MO

N5

PD

GP

IO16

PD

PU

3.3VU

SB

PUPD PD TACH

EV

R8

EV

R9

EV

R7

VR

7G

ND

VR

8V

R9 9L

8E

MO

N8

GP

IO17

PU

PD

PU PD

MO

N13

PD

A1=8

A0=8

A0=5

CTR

L

EV

R11

EV

R10

GN

DV

R11

VR

10

MO

N10

MO

N11

GP

IO16

GP

IO17

PU

FPW

M6

FPW

M7

FPW

M8

FPW

M4

FPW

M3

FPW

M2

SC

I_RX

FPW

M1

ALE

RT U

SB

ON

VR

12

EV

R12

12E LCLK

R1 EN

C1

RC

MR

G3

PU

3.3VTACH PU5V

FAULTOV NOM UV

MO

N4

R5 EN

10L

7E

R8 EN

PM

AD

DR

A1=5

R6 EN

PD

11E

TEM

PM

ON

HV

MO

N

VR

3 GN

D V

R4

VR

1 GN

D V

R2

MO

N6

RC

MR

G1

EV

R12

MO

N12

GP

IO13

GP

IO18

FPW

M5

TEX

AS

INS

TRU

ME

NTS

U

CD

90120EV

MU

CD

90124EV

MH

PA

459 RE

V. A

RC

MR

G4

3.3V5V12VGND

SC

I_TX

STA

T LED

D30

D5 R

2

R63

D32

J40 TP1

TP21

D36

U2 U3

R6

R116

D11

C21

C25

Q5

R198

Q7

C55

C56 R160

R12

TP66

C64

TP10

R56

R73 TP

2

TP71

J27 D16

U9

R86R87 R

95

TP22

TP20 R

176

D18

J46 D38

J12

C49 R36

TP37

TP41

D20

TP50

D42

R54

D21 J64 TP

5

D44

D52

R202

R201

D22 TP

31

D46 D

28

R252

D23 J53 D

48

R197 +C71

R158

TP51 D37D45

R249

D25 TP

60

D55 TP

68

TP64

R11

C66

TP55

J20R

75J32

C48 C13

J18

R148

Q1

J79

J21

J34

J4

TP3

C44

TP18

R91

C27

FB3

J30

C30R59

J36

J35D

34

D8

R23

R1

R42R30

C4

J48R

118

J42R

90 TP23

J50

J44

FB1

C12

C22

C15

J6J7

R34

R5R19R14

C50 C

51J60

R122

J62

D49

D47

TP6 R37 R10

R9

R210

R203

C53

J57

J51

C67

Q6

Q9

D7 C11

J19 D14

TP8

TP9 J38

TP14

R72

R64

U7 C10

R61

+C6

J23

J28

D15

TP16

TP13

TP19

C42

TP12

TP11

J26

L2

J25

TP15

TP26

R80

R60

J29

+C7

TP25

R15

R70

R62

FB2

D10

C1

J70

U1 RT1

D4

D13

J68D12

J72

TP28

TP34

TP36

TP38

D19

C45

R107

J52

S2

TP30

J13

J8

J5

TP32

R83

R94

D40

J11

TP4

R47

R40

D9

Q3

TP52

TP29

TP54

TP40

TP43

R120

R108

J54

TP46

TP39 J58

S8

S6

TP59

J47

TP72

TP57

TP48

J76

J75 S1

Q11

TP7

R35

D50

C19

Q12

D29

TP35

TP47

TP61

TP17

TP63

R149

R150D

24

C54

TP56

J59

S5

S7

TP42

J65TP

45TP

49

D54

D35

D33

D31D39

D41

D43

TP65

U12

R194

R199

R193

R196

R215

R254

R250

R237R235

R245

R242

R243

U16

D56

+

C69

J71

TP53

TP62 TP

67

+C68

J24

J2

U8

L1

R106

Q2

R109

R209

J15

R154

R151

U13

R186

J78

R256

J74

R257

J73

C43

C34

J33

J41

C31

J37

J56

R4

R46R41

R48 R7R8

J69

R156

J61J43

J63

J45

D6

R195

J31

D17

J39

S4

L3 J22

U5

TP27

C16

J10

TP24

TP44

D3

U6

D2

C17

J14

R39R43

R3

J67

J17

J1

J16

J66J9

J49J55

S3

S9

TP58

TP33

S10R251

R247R248

+

C5

J77

1

+

+

+ 1

1

+

+

1

CW

CCW

1

1

+

xrhudson

Top Layer Layout/Routing

xrhudson

Layer 2 Routing

xrhudson

Layer 3 Routing

R204

R207

R77 R98

R76 R84

R102

R92 R88

R99R216 C

36

R33R45

R218

R136

R226

R231

R230

R232

R200

C61

R206 Q

8

R173 R147

R236 R192

C62

R96

R66 R69

C28

R184

R78 TP

73

R185

C38

C40

R82

R132

R126 R138

R121 R144

R152

R123

D53

R228

R233R224

R155 R111

R157 R246

C59

C47R143

R172

R159R141 R217R153

C58 C70

R167

TP70

C65

R181

R180

R71R68

C26

R89

R211

C29 R16 R31

C8

R85

R128

R112

R103

R220

C9

R28

C14

C23

C18

R44

D26R

177

R18

R131

R168

R146

R191R189

R26

R29

R51

R53

R170

R137

R113

R234

Q10

R183

R169 C63

R241

R255

R57

R74

R81

R65

R79

R67

C37

R22

R97

R101

C32

C35

Q4R178

R179

D27

C3

C2

R129

R117

R119

C39

R134

R93

R104

R110

R124

R13C41

R24C46

R114

R38

R20

C57

R130

C52

R164

R166

R140

TP69

R222

R174

R27

R142

R162

R115R190

R188

R49

R52

R50

D51

R225

R229

R17

1

R127

R135

R105

R145

R212

R219

R223

R221

R227

R205

R208

R125

R163

R133

R139

R253

R258

R239

R244

C60

R214

R240

R165 R175

R213

R238

R58

R182

R187

R55

R17

R21

R32

C24

C33

R25

R100

C20

D1

R161

xrhudson

Bottom Layer Placement/Routing

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http://www.ti.com/communications

http://dsp.ti.com

http://www.ti.com/computers

http://www.ti.com/clocks

http://www.ti.com/consumer-apps

http://interface.ti.com

http://www.ti.com/energy

http://logic.ti.com

http://www.ti.com/industrial

http://power.ti.com

http://www.ti.com/medical

http://microcontroller.ti.com

http://www.ti.com/security

http://www.ti-rfid.com

http://www.ti.com/space-avionics-defense

http://www.ti.com/lprf

http://www.ti.com/video

http://www.ti.com/wireless-apps

Documents

SLVU347– December 2009 Evaluation Module for UCD90120 and