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EVAL-ADM1278EBZ User GuideUG-601
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
ADM1278 Evaluation Board User Guide
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 18
FEATURES Fully functional support evaluation kit for the ADM1278 Populated and tested with 12 V, 73 A, 3 mF design Special N-MOSFET footprint suits different packages Supports up to 4 sense resistors in parallel Supports up to 6 FETs in parallel LED indicated status outputs Wide input voltage range of up to 20 V FET temperature measurement capability Supports cascade setup for multiple boards Toggle and push-button switch for easy input control PMBus communication supported
PACKAGE CONTENTS EVAL-ADM1278EBZ evaluation board
ADDITIONAL HARDWARE NEEDED Serial I/O interface USB-SDP-CABLEZ (not included in the
evaluation kit and should be ordered separately) Only one dongle is required in multiple board cascade setup
SOFTWARE NEEDED Analog Devices, Inc., hot swap and power monitoring
evaluation software
EVALUATION BOARD CONNECTION DIAGRAM
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1
TEST POINTS
LEDs
POWER SUPPLYPOSITIVE INPUT
POWER SUPPLYNEGATIVE INPUT
USB-SDP-CABLEZ
SWITCH S1PUSHBUTTON S2
Figure 1.
GENERAL DESCRIPTION The EVAL-ADM1278EBZ is a compact, full featured evaluation board for the ADM1278. The board layout provides a clear visual of all the peripheral components and the hot swap power path. The layout also maximizes the ability of the board to dissipate heat for some of the key components on the power path, allowing the evaluation of very high current hot swap setups.
Four sense-resistor slots and six multipackage FET slots provide great flexibility and allow a wide range of application setups.
Multiple test points allow easy access to all critical points/pins. Seven LEDs provide direct visual indication on variations in the board status, such as supply input, output, IC power-good output, fault output, current sense output, and general-purpose outputs (GPO). An AD7291 8-channel, I2C, 12-bit, successive approximation analog-to-digital converter (SAR ADC) allows users to measure voltages such as CSOUT and other pin voltages, as well as to read ambient board temperature through an I2C bus in real time.
The kit supports I2C communication, allowing users to communicate with the ADM1278. The evaluation kit also supports cascade setup so multiple evaluation boards can be connected together and share the same I2C bus.
The boards are fully compatible with the ADM1278 evaluation software tool, which can be downloaded from the ADM1278 product page.
Users need a USB-SDP-CABLEZ USB-to-I2C dongle to use the evaluation software tools.
The standard evaluation kit is prepopulated and tested with a 12 V, 73 A hot swap design capable of working with a 3 mF output capacitor.
Complete specifications for the ADM1278 are available in the ADM1278 data sheet, available from Analog Devices, which should be consulted in conjunction with this user guide when using the evaluation board.
UG-601 EVAL-ADM1278EBZ User Guide
TABLE OF CONTENTS Features .............................................................................................. 1 Package Contents .............................................................................. 1 Additional Hardware Needed ......................................................... 1 Software Needed ............................................................................... 1 Evaluation Board Connection Diagram ........................................ 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Quick Start Guide ............................................................................. 3 Evaluation Board Description......................................................... 4
Board Specifications......................................................................5 Evaluation Board Hardware .............................................................6
Switch, Jumper, and LED Functions ...........................................6 Test Plots .............................................................................................7 Evaluation Board Schematics and Artwork ...................................9 Ordering Information .................................................................... 14
Bill of Materials ........................................................................... 14 Related Links ............................................................................... 18
REVISION HISTORY 12/14—Rev. 0 to Rev. A Changes to Quick Start Guide Section .......................................... 3 Change to Evaluation Board Description Section........................ 4 Changes to Table 1 ............................................................................ 5 Changes to Figure 13 ........................................................................ 9 Changes to Figure 14 ...................................................................... 10 Changes to Table 6 .......................................................................... 14 7/14—Revision 0: Initial Version
Rev. A | Page 2 of 18
EVAL-ADM1278EBZ User Guide UG-601
QUICK START GUIDE To set up and start using the evaluation board, take the following steps:
1. Download the hot swap and power monitor software from www.analog.com/hotswaptools (see the UG-353 user guide for more information).
2. Connect the evaluation board (EVAL-ADM1278EBZ) to a PC through the 10-way connector and USB-SDP-CABLEZ.
3. Connect the power supply to the evaluation board (EVAL-ADM1278EBZ) using thick wires suitable for the current levels to be observed.
4. To confirm that the boards are configured correctly, set the output of the power supply to 12 V with less than 1 A current limit and with no load capacitance. If the boards are configured correctly, the green LED, labeled PWRGD on the EVAL-ADM1278EBZ, should illuminate.
5. Push the ENABLE switch to the off position or press the push-button on the EVAL-ADM1278EBZ. The green LED, labeled PWRGD, should turn off and then turn back on again when re-enabled.
6. If a fault event occurs (for example, a short circuit during operation), the red LED, labeled FAULT, illuminates. This fault can be cleared by toggling the ENABLE pin after the fault condition has been removed.
7. Disable the hot swap using the Hot Swap Control section of the Basic Operation tab of the GUI. Disabling the hot swap turns off the green LED (PWRGD) on the evaluation board.
8. Manually program the sense resistor value, if required, using the options in the GUI.
9. Check that the voltage and current measurements are as expected (for example, VIN = 12 V) in the Power Monitor tab of the software GUI.
Rev. A | Page 3 of 18
UG-601 EVAL-ADM1278EBZ User Guide
EVALUATION BOARD DESCRIPTION The EVAL-ADM1278EBZ is designed to demonstrate several features of the ADM1278. A simplified drawing of the evaluation board is shown in Figure 2.
The EVAL-ADM1278EBZ is connected to a PC using a USB-SDP-CABLEZ dongle for I2C communication.
The EVAL-ADM1278EBZ is shown in Figure 1. To minimize inductance, use thick wires between the power supply and the EVAL-ADM1278EBZ board connector. The PWRGD, VIN, and VOUT LEDs illuminate green after the board is powered.
The board is intended to be plugged into a system where load capacitance already exists. Two through-hole vias are provided to allow the placement of a load capacitor on the board when testing the board outside of a real system. All testing performed on the board was done with a 3 mF load capacitor.
The EVAL-ADM1278EBZ uses a 10 nF CTIMER1 capacitor to maintain a 1 ms FET safe operating area (SOA). The undervoltage and overvoltage thresholds were set using resistor dividers. A resistor divider was also used on the ISET pin to set the current limit to approximately 73 A. The constant power level was set to 180 W to allow the board to power up while maintaining the FET SOA at all times. These values can all be fine-tuned further if necessary.
SDAADR1ADR2
GPO1/ALERT1/CONVGPO2/ALERT2SCL
PWRGDFAULTENABLE
GNDPGND
RETRY
VOUT
PWGIN
TEMPGATE
ADM1278
TIMER
HS+ HS–MO+ MO–
ISTART
PSET
ISET
OV
UV
VCAP
VCC
4.5V TO 20V Q1RSENSE
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CSOUT
Figure 2. Basic Block Diagram
Rev. A | Page 4 of 18
EVAL-ADM1278EBZ User Guide UG-601
Rev. A | Page 5 of 18
The EVAL-ADM1278EBZ has the capability to mimic power throttling by allowing the user to set a programmable threshold on CSOUT. There is a resistor divider on the board to set the CSOUT within the input threshold range of the ADC, and another resistor divider is used to set it within the input threshold range of the comparator. When the CSOUT voltage exceeds the comparator threshold programmed by the AD5622 digital-to-analog converter (DAC) (via the evaluation software), an alert signal is asserted. The yellow LED (D2) illuminates to mimic this alert signal. The fast response time of the CSOUT pin to a load step (typically 10 μs) makes it suitable for fast alerts to overcurrent events. For example, it can be used to drive the fast PROCHOT pin of an Intel® processor for power throttling.
CSOUT
ADC
DAC
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Figure 3.
For the best current sensing accuracy with the footprint shown in Figure 5, chip resistors without a nickel barrier layer (usually green in color) are recommended. The data in this user guide may not be applicable to all resistors, and results may vary depending on resistor composition and size. Alternative resistors should be tested independently. It is the responsibility of the user to ensure the layout dimensions and structure of the footprint comply with individual SMT manufacturing requirements. Analog Devices does not accept responsibility for any issues that may arise as a result of using this footprint.
1
1
1
1
1
3
2
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Figure 4. Multipackage N-MOSFET Footprint
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Figure 5. Recommended Sense Resistor Footprint
BOARD SPECIFICATIONS
Table 1. Parameter Typical Value Unit Load Capacitance 3000 μF Circuit Breaker Current 69.5 A Regulation Current 73 A Start-Up Current Limit 8.0 A Constant Power Foldback 180 W Ambient Temperature 60 °C UV Falling Threshold 9.26 V UV Rising Threshold 9.81 V OV Rising Threshold 16.4 V PWRGD Falling Threshold 10.3 V TIMER Regulation 167 μs
UG-601 EVAL-ADM1278EBZ User Guide
EVALUATION BOARD HARDWARE SWITCH, JUMPER, AND LED FUNCTIONS
Table 2. Connector Functions Connector Description VIN1, VIN2, VIN3 Hot swap line voltage input, which also powers the board. Input voltage is 4.5 V to 20 V. For low voltage operations,
provide auxiliary power input through Connector VCC. VOUT1, VOUT2, VOUT3 Hot swap line voltage output. GND Board common ground. SK1 10-way connector for USB-SDP-CABLEZ. SK2 Bottom cascade connector; connect with the Micro-MaTch ribbon cable to link with another EVAL-ADM1278EBZ board. SK4 Top cascade connector; connect with the Micro-MaTch ribbon cable to link with another EVAL-ADM1278EBZ board.
Table 3. Switch Functions Switch Description S1 Toggle switch for the ENABLE pin. S2 Push-button switch for the ENABLE pin.
Table 4. LED Functions LED Description D2 CSOUT comparator output, active high; yellow D3 FAULT, active low; red D4 GPO1, active high; blue D5 GPO2, active high; blue D6 Power good, active high; green D7 Board input power; green D8 Board output power; green
Table 5. On-Board ICs IC Description U1 ADM1278, main IC U2 ADP1720ARMZ-3.3, 4 V to 28 V input, 3.3 V, 50 mA output LDO; powering EEPROM U3 64 Kb I2C EEPROM U4 AD7291, ±1°C accurate, 8-channel, I2C, 12-bit SAR ADC with temperature sensor U6 ADCMP370AKSZ, general-purpose comparator with open-drain output U7 AD5622YKSZ, 2.7 V to 5.5 V, 12-bit nanoDAC® with I2C-compatible interface U5 ADR435ARMZ, ultralow noise XFET® 5 V output
Rev. A | Page 6 of 18
EVAL-ADM1278EBZ User Guide UG-601
Rev. A | Page 7 of 18
TEST PLOTS
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CH1 = VIN
CH4 = CURRENT
CH2 = VOUT
CH3 = GATE
Figure 6. Power Up with 3 mF Load Capacitor and No DC Load
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CH1 = VIN
CH4 = CURRENT
CH2 = VOUT
CH3 = TIMER
Figure 7. Power Up into 0.6 Ω DC Load (Start-Up Current Circuit Break Limit = 6.5 A)
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CH1 = VIN
CH4 = CURRENT
CH2 = VOUTCH3 = GATE
Figure 8. Overcurrent Shutdown
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CH1 = VIN
CH4 = CURRENT CH2 = VOUT
CH3 = GATE
Figure 9. Output Short Circuit
UG-601 EVAL-ADM1278EBZ User Guide
Rev. A | Page 8 of 18
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CH1 = VIN
CH4 = CURRENT
CH2 = VOUT
CH3 = GATE
Figure 10. Output Short Circuit (Zoom-In)
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CH1 = VIN
CH4 = CURRENT
CH2 = GATE
CH3 = TIMER
Figure 11. Power Up into Short
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CH1 = VIN
CH4 = CURRENT
CH2 = VOUT
CH3 = TIMER
Figure 12. Power Up into 0.6 Ω DC Load with Start-Up Current Limit Disabled
EVAL-ADM1278EBZ User Guide UG-601
EVALUATION BOARD SCHEMATICS AND ARTWORK
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Figure 13. Evaluation Board Schematic 1
Rev. A | Page 9 of 18
UG-601 EVAL-ADM1278EBZ User Guide
11757-012
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Figure 14. Evaluation Board Schematic 2
Rev. A | Page 10 of 18
EVAL-ADM1278EBZ User Guide UG-601
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Figure 15. Top Layer 1
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Figure 16. Inner Layer 2
Rev. A | Page 11 of 18
UG-601 EVAL-ADM1278EBZ User Guide
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Figure 17. Inner Layer 3
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Figure 18. Bottom Layer
Rev. A | Page 12 of 18
EVAL-ADM1278EBZ User Guide UG-601
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Figure 19. Assembly Top
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Figure 20. Assembly Bottom
Rev. A | Page 13 of 18
UG-601 EVAL-ADM1278EBZ User Guide
ORDERING INFORMATION BILL OF MATERIALS
Table 6. Reference Designator Description Manufacturer/Part Number 3V3 Test point Do not insert 5V Test point Do not insert AGND Test point FEC 8731128 AGND1 Test point Do not insert AGND2 Test point FEC 8731128 C1 Unpopulated capacitor (0603) Do not insert C2 Unpopulated capacitor (0603) Do not insert C3 Capacitor, 22 nF, 50 V, X7R, 0603 FEC 3019755 C4 Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 C5 Capacitor, 1 µF, 25 V, X7R, 0805 FEC 1637035 C6 Capacitor, 1 µF, 25 V, X7R, 0805 FEC 1637035 C7 Capacitor, 1 µF, 25 V, X5R, 0603 FEC 1288256 C8 Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 C9 Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 C10 Capacitor, 1 µF, 25 V, X5R, 0603 FEC 1288256 C11 Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 C12 Unpopulated capacitor (0603) Do not insert C14 Capacitor, 1 µF, 25 V, X5R, 0603 FEC 1288256 C18 Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 CDCAP Capacitor, 1 µF, 25 V, X5R, 0603 FEC 1288256 CISET Capacitor, 10 nF, 50 V, X7R, 0603 FEC 1414609 CLOAD Load capacitor Do not insert COV Capacitor, 10 nF, 50 V, X7R, 0603 FEC 1414609 CPSET Capacitor, 10 nF, 50 V, X7R, 0603 FEC 1414609 CSOUT Red test point Do not insert CTEMP Capacitor, ceramic, 10 pF, 50 V, C0G/NP0, 0603 FEC 1414601 CTIMER1 Capacitor, 10 nF, 50 V, X7R, 0603 FEC 722236 CTIMER2 Unpopulated capacitor (0603) Do not insert CUV Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 CVCAP Capacitor, 1 µF, 25 V, X7R, 0805 FEC 1637035 CVCC Capacitor, 1 µF, 25 V, X7R, 0805 FEC 1637035 CVDD1 Capacitor, 10 µF, 6.3 V, X7R, 0805 FEC 2112846 CVDD2 Capacitor, 100 nF, 50 V, X7R, 0603 FEC 1288255 CVDRIVE Capacitor, 10 µF, 6.3 V, X7R, 0805 FEC 2112846 CVREF Capacitor, 10 µF, 6.3 V, X7R, 0805 FEC 2112846 D1 TVS, 13 V, SMC diode, SMCJ13A FEC 1467622 D2 LED, SMD, yellow, 0805 FEC 1318247 D3 LED, SMD, red, 0805 FEC 1318244 D4 LED, SMD, blue, 0805 FEC 8529876 D5 LED, SMD, blue, 0805 FEC 8529876 D6 LED, SMD, green, 0805 FEC 1318243 D7 LED, SMD, green, 0805 FEC 1318243 D8 LED, SMD, green, 0805 FEC 1318243 D9 Zener diode, 2.7 V, 0.5 W, SOD-123 BZT52C5V1-V-GS08 FEC 1902432 ENABLE Test point Do not insert GATE Test point Do not insert GND Terminal, screw, vertical Digi-Key 7691K-ND GND1 Test point Do not insert GND2 Test point FEC 8731128
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EVAL-ADM1278EBZ User Guide UG-601
Reference Designator Description Manufacturer/Part Number GND3 Test point FEC 8731128 GND4 Test point FEC 8731128 GPO1 Test point Do not insert GPO2 Test point Do not insert HS+ Test point Do not insert HS− Test point Do not insert ISET Test point Do not insert ISTART Test point Do not insert MCLK Test point Do not insert MDAT Test point Do not insert MO+ Test point Do not insert MO− Test point Do not insert OV Test point Do not insert PSET Test point Do not insert PWRGD Red test point Do not insert Q1 MOSFET, N-Ch, 25 V, 100 A, LFPAK PSMN0R9-25YLC SOT669-CUSTOM Digi-Key 568-6720-1-ND Q2 MOSFET, N-Ch, 25 V, 100 A, LFPAK PSMN0R9-25YLC SOT669-CUSTOM Digi-Key 568-6720-1-ND Q3 MOSFET, N-Ch, 25 V, 100 A, LFPAK PSMN0R9-25YLC SOT669-CUSTOM Do not insert Q4 MOSFET, N-Ch, 25 V, 100 A, LFPAK PSMN0R9-25YLC SOT669-CUSTOM Digi-Key 568-6720-1-ND Q5 MOSFET, N-Ch, 25 V, 100 A, LFPAK PSMN0R9-25YLC SOT669-CUSTOM Do not insert Q6 MOSFET, N-Ch, 25 V, 100 A, LFPAK PSMN0R9-25YLC SOT669-CUSTOM Do not insert Q7 MOSFET, N-Ch, 60 V, 0.115 A, SOT23 2N7002-7-F FEC 1713823 Q8 MOSFET, N-Ch, 60 V, 0.115 A, SOT23 2N7002-7-F FEC 1713823 Q9 MOSFET, N-Ch, 60 V, 0.115 A, SOT23 2N7002-7-F FEC 1713823 Q10 MOSFET, N-Ch, 60 V, 0.115 A, SOT-23 2N7002-7-F FEC 1713823 Q11 MOSFET, N-Ch, 60 V, 0.115 A, SOT-23 2N7002-7-F FEC 1713823 Q12 MOSFET, N-Ch, 60 V, 0.115 A, SOT-23 2N7002-7-F FEC 1713823 QT1 NPN transistor, SOT-23 MMBT3904 FEC 1757935 QT2 NPN transistor, SOT-23 MMBT3904 FEC 1757935 QT3 NPN transistor, SOT-23 MMBT3904 FEC 1757935 QT4 NPN transistor, SOT-23 MMBT3904 FEC 1757935 QT5 NPN transistor, SOT-23 MMBT3904 FEC 1757935 QT6 PNP transistor, (SOT-23) MMBT3904 FEC 9846832 R1 Resistor, 0603, 0.25 W, 10 Ω FEC 1738878 R1A Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R1B Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R1C Unpopulated resistor (0603) Do not insert R1D Unpopulated resistor (0603) Do not insert R2 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R2A Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R2B Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R2C Unpopulated resistor (0603) Do not insert R2D Unpopulated resistor (0603) Do not insert R3 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R3A Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R3B Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R3C Unpopulated resistor (0603) Do not insert R3D Unpopulated resistor (0603) Do not insert R3V3B Resistor, 0603, 0.1 W, 150 kΩ FEC 2122639 R3V3T Resistor, 0603, 0.1 W, 100 kΩ FEC 1469649 R4 Unpopulated resistor (0603) Do not insert R4A Resistor, 0603, 0.1 W, 10 Ω FEC 1469751 R4B Resistor, 0603, 0.1 W, 10 Ω FEC 1469751
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UG-601 EVAL-ADM1278EBZ User Guide
Reference Designator Description Manufacturer/Part Number R4C Unpopulated resistor (0603) Do not insert R4D Unpopulated resistor (0603) Do not insert R5 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R5VB Resistor, 0603, 0.1 W, 66.5 kΩ FEC 2122597 R5VT Resistor, 0603, 0.1 W, 100 kΩ FEC 1469649 R6 Unpopulated resistor (0603) Do not insert R7 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R8 Resistor, 0603, 0.25 W, 10 Ω FEC 1738878 R9 Resistor, 0603, 0.25 W, 10 Ω FEC 1738878 R10 Resistor, 0603, 0.25 W, 10 Ω FEC 1738878 R11 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R12 Resistor, 0603, 0.1 W, 1 kΩ FEC 1469740 R13 Resistor, 0603, 0.1 W, 100 kΩ FEC 1469649 R14 Resistor, 0603, 0.1 W, 100 kΩ FEC 1469649 R15 Unpopulated resistor (0603) Do not insert R16 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R17 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R18 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 R19 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R20 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 R21 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R22 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 R23 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R24 Resistor, 0603, 0.1 W, 100 kΩ FEC 1469649 R25 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 R26 Resistor, 0603, 0.25 W, 10 Ω FEC 1738878 R27 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R28 Resistor, 0603, 0.1 W, 1 kΩ FEC 1469740 R29 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R30 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R31 Resistor, 0603, 0.25 W, 10 Ω FEC 1738878 R32 Unpopulated resistor (0603) Do not insert R33 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R34 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R35 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R36 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R37 Unpopulated resistor (0603) Do not insert R38 Unpopulated resistor (0603) Do not insert R39 Unpopulated resistor (0603) Do not insert R40 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R41 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R42 Resistor, 0603, 0.1 W, 0 Ω Do not insert R43 Resistor, 0603, 0.1 W, 0 Ω Do not insert R44 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 R45 Unpopulated resistor (0603) Do not insert R46 Resistor, 0805, 0.33 W, 1 kΩ FEC 1738959 R47 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R48 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 R49 Unpopulated resistor (0603) Do not insert R50 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R51 Resistor, 0603, 0.1 W, 100 kΩ FEC 1469649 R52 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 R53 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739
Rev. A | Page 16 of 18
EVAL-ADM1278EBZ User Guide UG-601
Reference Designator Description Manufacturer/Part Number R54 Unpopulated resistor (0603) Do not insert R55 Unpopulated resistor (0603) Do not insert R56 Unpopulated resistor (0603) Do not insert R57 Unpopulated resistor (0603) Do not insert R58 Unpopulated resistor (0603) Do not insert RCSOUT1 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 RCSOUT2 Resistor, 0603, 0.1 W, 13 kΩ FEC 1652839 RCSOUT3 Resistor, 0603, 0.25 W, 10 kΩ FEC 1738918 RCSOUT4 Resistor, 0603, 0.1 W, 3.92 kΩ FEC 2138394 RGATE Resistor, 0805, 0.125 W, 0 Ω FEC 1469846 RISET1 Resistor, 0603, 0.063 W, 100 kΩ FEC 9330402 RISET2 Resistor, 0603, 0.1 W, 51.1 kΩ FEC 2059473 RISTART1 Resistor, 0603, 0.063 W, 100 kΩ FEC 9330402 RISTART2 Resistor, 0603, 0.1 W, 5.62 kΩ FEC 2138405 ROUV Unpopulated resistor (0603) Do not insert ROV1 Resistor, 0603, 0.1 W, 51.1 kΩ FEC 2059473 ROV2 Resistor, 0603, 0.1 W, 3.32 kΩ FEC 2059362 RPSET1 Resistor, 0603, 0.063 W, 100 kΩ FEC 9330402 RPSET2 Resistor, 0603, 0.1 W, 11.5 kΩ FEC 1469753 RPWGIN1 Resistor, 0603, 0.1 W, 51.1 kΩ FEC 2059473 RPWGIN2 Resistor, 0603, 0.1 W, 5.49 kΩ FEC 2138404 RSENSE1 Sense resistor (2512 case size) FEC 1292504 RSENSE2 Sense resistor (2512 case size) FEC 1292504 RSENSE3 Sense resistor (2512 case size) Do not insert RSENSE4A Sense resistor (2512 case size) Do not insert RSENSE4B Sense resistor (2512 case size) Do not insert RUV1 Resistor, 0603, 0.1 W, 51.1 kΩ FEC 2059473 RUV2 Resistor, 0603, 0.1 W, 6.19 kΩ FEC 2059387 RVCC Resistor, 0603, 10 Ω FEC 1738878 RVIN1 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 RVIN2 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 RVIN3 Resistor, 0603, 0.1 W, 0 Ω FEC 1469739 RVOUT1 Resistor, 0603, 0.1 W, 1 kΩ FEC 1469740 RVOUT2 Unpopulated resistor (0603) Do not insert S1 SPDT slide switch FEC 1123875 S2 Push button, 2.8 mm × 3.8 mm, vertical push FEC 1605470 SK1 10-way Micro-MaTch FEC 148600 SK2 8-way Micro-MaTch FEC 148593 SK3 Header, right angle, 1 row, 3-way, SIP-3P, 2.54 mm Do not insert SK4 8-way, female, PTH socket, Micro-MaTch FEC 148593 TEMP Test point Do not insert TIMER Test point Do not insert U1 ADM1278 hot swap controller and digital power and energy monitor ADM1278-2ACPZ U2 50 mA, high voltage, micropower linear regulator, 3.3 V ADP1720ARMZ-3.3-R7 U3 IC, EEPROM, serial 64KB, SMD, MSOP8 FEC 1331335 U4 8-channel, I2C, 12-bit SAR ADC with temperature sensor AD7291BCPZ U5 Ultralow noise XFET voltage references ADR435ARMZ U6 Comparator ADCMP370AKSZ-REEL U7 12-bit DAC AD5622YKSZ-2500RL7 UV Test point Do not insert VBUS Test point Do not insert VCAP Test point Do not insert VCC Test point Do not insert
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UG-601 EVAL-ADM1278EBZ User Guide
Reference Designator Description Manufacturer/Part Number VIN1 Terminal, screw, vertical Digi-Key 7691K-ND VIN2 Terminal, screw, vertical Digi-Key 7691K-ND VIN3 Terminal, screw, vertical Digi-Key 7691K-ND VOUT1 Terminal, screw, vertical Digi-Key 7691K-ND VOUT2 Terminal, screw, vertical Digi-Key 7691K-ND VOUT3 Terminal, screw, vertical Digi-Key 7691K-ND FAULT Test point Do not insert
SPISS Test point Do not insert
RELATED LINKS Resource Description AD5622 Product page, 2.7 V to 5.5 V, 12-bit nanoDAC® with I2C-compatible interface AD7291 Product page, ±1°C accurate, 8-channel, I2C, 12-bit SAR ADC with temperature sensor ADCMP370 Product page, general-purpose comparator with open-drain output ADM1278 Product page, hot swap controller and digital power and energy monitor with PMBus interface ADP1720 Product page, 4 V to 28 V input, 3.3 V, 50 mA output LDO; powering EEPROM ADR435 Product page, ultralow noise XFET® 3.5 µV p-p at 2.5 V output
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.
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Rev. A | Page 18 of 18
