DEMO MANUAL DC2703A-A-KIT LT8491 High Voltage Buck-Boost

1

DEMO MANUAL DC2703A-A-KIT

Rev. 0

DESCRIPTION

LT8491 High Voltage Buck-Boost Battery Charge Controller

with Maximum Power Point Tracking (MPPT) and I2C

The DC2703A-A-KIT contains the DC2703A (LT®8491 demo board) and DC1613A (USB-to-I2C controller). Together they provide a high performance buck-boost battery charger converter with an I2C interface. The LT8491 implements a maximum power point track-ing (MPPT) function and flexible charging profiles, suit-able for most battery types such as flooded and sealed lead acid batteries and Li-Ion batteries. A Microsoft Windows-Based GUI (Graphical User Interface) appli-cation called “simpleLT8491” is provided which can be downloaded here.

The DC2703A-A-KIT demo board is configured for 17V to 54V input voltage range and the power source can be a solar panel with 36 to 72 cells (up to 200W) or a DC voltage source. The LT8491 converter can operate from input voltages above, below or equal to the battery volt-age. Two input connectors are provided. An ideal diode controller LTC®4359 protects the DC power supply output from being back fed from the solar panel. This allows, for example, a 24VDC supply to be plugged in while a solar panel with higher voltage is being used to power the circuit. The DC2703A-A-KIT demo board output is set up for charging a 12V SLA battery with up to 16.6A charge current. The DC2703A-A-KIT demo board can be modified to support much higher output voltage, with modifications including higher voltage rating output side MOSFETs and capacitors.

The LT8491 includes a slave I2C compatible interface for digital control of the charger settings and digital readouts of charger telemetry and status. A Microsoft Windows-Based GUI (Graphical User Interface) application is pro-vided for this demo board, which makes it very easy to read charger telemetry and status data, as well as the All registered trademarks and trademarks are the property of their respective owners.

ability to change the charging algorithm by writing to the appropriate configuration registers. The LT8491 EEPROM on the DC2703A-A-KIT demo board is programmed with the onboard resistor values to accurately read charger telemetry and status registers data.

On-chip logic provides automatic true power point track-ing (MPPT) for solar powered applications. The MPPT function not only continuously tracks the maximum power point, but also periodically sweeps the input panel voltage in order to select the correct maximum on the power curve. In doing so, an increase in power harvested from the panel during partial shade conditions is possible when multiple peaks occur on the power curve. During periods of low light, a low power mode allows the char-ger to deliver a small charge current even if there is not enough light for the MPPT function to operate.

An RJ25 modular jack can be used to connect an exter-nal NTC temperature sensor mounted at the battery. This allows temperature compensation of the charge voltage, which is important for lead acid batteries. The same con-nector can be used for remote sensing of battery voltage, to compensate for voltage drops in long battery cables. The onboard LED displays the charge state.

The LT8491 data sheet gives a complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo man-ual for DC2703A-A-KIT. The LT8491EUKJ is assembled in a 64-lead (7mm × 11mm) plastic QFN package with a thermal pad underneath the chip. Proper board layout is essential for maximum thermal performance.

Design files for this circuit board are available.

https://www.analog.com/DC2703A?doc=DC2703A.pdf


https://www.analog.com


https://www.analog.com/LT8491?doc=DC2703A.pdf


https://www.analog.com/LT8491

https://www.analog.com/LTC4359?doc=DC2703A.pdf

https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/DC2703A.html#eb-documentation?doc=DC2703A.pdf

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Rev. 0

Figure 1. Efficiency vs Output Battery Charge Current (DC Input: VIN = 28V, VOUT = 14.2V)

Figure 2. Input and Output Currents vs Input Voltage (DC Input Current Limited to 10A, VOUT = 13.6V)

EFFICIENCY

DISSIPATION

CHARGE CURRENT (A)0 2 4 6 8 10 12 14 16 18

90

91

92

93

94

95

96

97

98

99

100

0

2

4

6

8

10

12

14

16

18

20

EFFI

CIEN

CY (%

)

DISSIPATION (W)

DC2703A-A-KIT F01

IOUT

IIN

INPUT VOLTAGE (V)10 15 20 25 30 35 40 45 50 55

0

2

4

6

8

10

12

14

16

18CU

RREN

T (A

)

DC2703A-A-KIT F02

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

VIN Input Supply Range Note: Output Power Is Limited by Input Current Limit When VIN < 24V (See Figure 2)

17 30 54 V

VOUT Charge Voltage 14.2 V

IIN Maximum Input Current 10 A

IOUT Maximum Output Current VIN > 24V, VOUT = 12V 16.6 A

fSW Switching Frequency 150 kHz

POUT/PIN Efficiency at DC Input VIN = 48V, VOUT = 14.2V, IOUT = 15A VIN = 36V, VOUT = 14.2V, IOUT = 15A VIN = 24V, VOUT = 14.2V, IOUT = 8A

95.6 96.1 97.1

% % %

Note 1: VIN MIN and MAX specifications are for solar panel as an input power source. For further information refer to data sheet section: HW Config: Solar Panel Powered Charging. For DC supply as an input power source, VIN MIN can be as low as 10V.

TYPICAL PERFORMANCE CHARACTERISTICS

PERFORMANCE SUMMARY Specifications are at TA = 25°C



3


Rev. 0

1. Connect a 12V lead acid battery to the VBAT connec-tor (J2), making sure that the polarity is correct. A suitable battery size is a 150Ah 12V deep cycle sealed lead acid battery, but also smaller 12V lead acid batter-ies can be used for testing the charging functions. Use a short battery cable that is rated for 15A or higher.

2. Connect the solar panel to the PANEL IN connec-tor (J1), making sure that the polarity is correct. A suitable panel is a 200W 60 cell solar panel, but any panel with 36 to 72 cells (54V maximum open circuit voltage) can be used.

3. Download and install the Windows-Based GUI (Graphical User Interface) application called “sim-pleLT8491”. Refer to the GUI application user guide (from the GUI window select Help > User Guide) to explore the full functionality of the GUI. The communi-cation between the Windows-Based PC and DC2703A-A-KIT demo board is done using either a DC1613A or a DC2026C Linduino®, which are USB-based controllers. Connect the DC1613A or the DC2026C Linduino to the PC USB port using a USB cable. If using a DC1613A, connect the output of the DC1613A to the DC1613A PORT connector (J9) on the DC2703A-A-KIT demo board. If using a DC2026C Linduino, connect the out-put of the DC2026C Linduino to the Linduino HDR con-nector (J10) on the DC2703A-A-KIT demo board.

Note: If using the DC2026C Linduino, the user will need to make sure that it has the appropriate sketch loaded before interfacing with the DC2703A-A-KIT demo board. Refer to the GUI application user guide on how to load the appropriate sketch.

4. Point the solar panel towards sunlight to power the charger and monitor the MPPT charger function under different conditions, using ampere meters and volt-meters and other test equipment as needed. Run the

“simpleLT8491” application by selecting it from the Windows START menu. In the GUI window under “LT8491 Address” section, it will display “Address 1 0x10” indicating that LT8491 with I2C chip address 0x10 has been detected. Click the Poll or One Shot but-ton to display the charger telemetry and status regis-ters data in the GUI Dashboard tab. In the event the GUI application is running but the DC2703A-A-KIT demo board is power cycled or LT8491 is reset, reconnect the GUI application and demo board by selecting from GUI window “Tools > Connect Interface”.

Note: By default, the charger will not start unless the output battery voltage is above 4.5V. However, this threshold can be changed by writing to CFG_UV_S0/CFG_S0_UV configuration registers if needed. For further information refer to I2C Register Descriptions: CFG_UV_S0, CFG_S0_UV in the data sheet.

5. The charger will also work with a DC power supply connected to the DC IN connector (J7). Disconnect the solar panel before turning on the DC supply. (The charger can operate from both power sources simul-taneously. However, the MPPT function will be disabled while there is DC voltage on the DC IN input, so the solar panel may not be operating at its maximum power point if the charger is also powered from the DC IN connector.) A suitable supply is a 24VDC supply that can deliver at least 12A, but any DC power supply that has an output voltage in the range of 10V to 54V and is able to deliver 250W power or 12A current can be used for evaluation.

6. Read the LT8491 data sheet for more details on the function of the circuit and how to change the charging algorithm by writing to the appropriate configuration registers via the I2C interface.

QUICK START PROCEDURE




https://www.analog.com/DC2026C?doc=DC2703A.pdf

4


Rev. 0

Figure 3. SOLAR Panel and SLA Battery Connections

DC2703A-A-KIT F03

SOLAR PANEL

SLA BATTERY

+–

+

–




5


Rev. 0

Figure 4. DC2703A-A-KIT Connected to DC1613A and Windows-Based GUI “simpleLT8491” Application




6


Rev. 0

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 4 C2, C6, C11, C12 CAP., 10μF, X7R, 100V, 20%, 2220, STACKED TDK, CKG57NX7R2A106M

2 1 C3 CAP., 150μF, ALUM.ELECT., 25V, 20%, 8mm × 10.5mm SMD SUN ELECTRONIC INDUSTRIES, 25HVH150M

3 2 C4, C8 CAP., 33μF, ALUM. ELECT., 63V, 20%, 10mm × 10.5mm SMD SUN ELECTRONIC INDUSTRIES, 63HVH33M

4 1 C13 CAP., 0.001μF, X7R, 100V, ±10%, 1206 WURTH ELEKTRONIK, 885012208106

5 1 C15 CAP., 1000pF, X7R, 16V, 10%, 0603 AVX, 0603YC102KAT2A

6 2 C16, C21 CAP., 0.01μF, X7R, 100V, 10%, 0603 WURTH ELEKTRONIK, 885012206114




10 1 C23 CAP., 2.2μF, X7R, 100V, 10%, 1210 AVX, 12101C225KAT2A

11 3 C26, C34, C37 CAP., 0.1μF, X7R, 16V, 10%, 0603 AVX, 0603YC104KAT2A

12 2 C27, C32 CAP., 1μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206052

13 1 C28 CAP., 1μF, X7R, 100V, 10%, 1210 AVX, 12101C105KAT2A

14 3 C29, C30, C31 CAP., 4.7μF, X5R, 16V, 20%, 0603 MURATA, GRM188R61C475MAAJD


16 1 C36 CAP., 220pF, C0G, 50V, 5%, 0603 AVX, 06035A221JAT2A

17 1 C38 CAP., 0.0068μF, X7R, 50V, 10%, 0603 WURTH ELEKTRONIK, 885012206088


19 2 D3, D4 DIODE, RECT., 200V, 1A, SOD-123F CENTRAL SEMI., CMMR1U-02 TR

20 2 D6, D7 DIODE, SCHOTTKY, 100V, 1A, POWERDI-123 DIODES INC., DFLS1100-7

21 1 L1 IND., 10μH, SHIELDED, HIGH CURRENT, 15%, 30A, 2.4mΩ WURTH ELEKTRONIK, 7443641000

22 2 M1, M6 XSTR., MOSFET, N-CH, 60V, PG-TDSON-8 INFINEON, BSC028N06NS

23 1 M2 XSTR., MOSFET, N-CH, 60V, 8-PIN PG-TDSON FL INFINEON, BSC016N06NSATMA1

24 2 M3, M4 XSTR., MOSFET, N-CHAN, 25V, PG-TDSON-8 INFINEON, BSC010NE2LSI

25 1 R1 RES., 5mΩ, 1%, 2W, 2512 TT ELECTRONICS, LRMAT2512-R005FT4

26 1 R2 RES., SENSE, 3mΩ, 1%, 2W, 2512 TT ELECTRONICS, LRMAT2512-R003FT4

27 1 R4 RES., 1.2Ω, 5%, 1/4W, 1206 VISHAY, CRCW12061R20JNEA

28 1 R5 RES., 30.1k, 1%, 1/10W, 0603 VISHAY, CRCW060330K1FKEA

29 1 R6 RES., 8.06k, 1%, 1/10W, 0603 YAGEO, RC0603FR-078K06L

30 4 R7, R9, R10, R47 RES., 1Ω, 1%, 1/10W, 0603 YAGEO, RC0603FR-071RL

31 7 R8, R11, R23, R29, R36, R44, R66

RES., 0Ω, 1/10W, 0603 BOURNS, CR0603-J/-000ELF

32 8 R12, R18, R21, R22, R26, R27, R41, R63

RES., 10Ω, 1%, 1/10W, 0603 VISHAY, CRCW060310R0FKEA

33 1 R13 RES., 3mΩ, 1%, 3W, 1225, METAL, SENSE SUSUMU, KRL6432E-M-R003-F-T1

34 6 R17, R49, R55, R58, R73, R74

RES., 4.99k, 1%, 1/10W, 0603 STACKPOLE, RMCF0603FT3R30

35 1 R20 RES., 3.3Ω, 1%, 1/10W, 0603 STACKPOLE, RMCF0603FT3R30

36 1 R30 RES., 196k, 1%, 1/10W, 0603 VISHAY, CRCW0603196KFKEA

37 1 R31 RES., 102k, 1%, 1/10W, 0603 VISHAY, CRCW0603102KFKEA

38 1 R37 RES., 5.9k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF5901V

39 2 R38, R65 RES., 53.6k, 1%, 1/10W, 0603 VISHAY, CRCW060353K6FKEA

PARTS LIST



7


Rev. 0


40 3 R39, R56, R59 RES., 10k, 1%, 1/10W, 0603 VISHAY, CRCW060310K0FKEC




44 1 R46 RES., 49.9k, 1%, 1/10W, 0603 NIC, NRC06F4992TRF

45 1 R51 RES., 18.2k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1822

46 1 R52 RES., 21k, 1%, 1/10W, 0603 ROHM, MCR03EZPFX2102


48 1 R57 RES., 301k, 1%, 1/10W, 0603 NIC, NRC06F3013TRF

49 1 R61 RES., 124k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1243V


51 1 R67 RES., 35.7k, 1%, 1/10W, 0603 NIC, NRC06F3572TRF

52 1 U1 IC., BATTERY CHARGE CONTROLLER ANALOG DEVICES, LT8491EUKJ#PBF

Additional Demo Board Circuit Components And Options

53 5 C1, C5, C7, C9, C10 CAP., OPTION, ALUM. ELECT., SMD OPT

54 1 C14 CAP., OPTION, 1206 OPT

55 1 C41 CAP., 1μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206052

56 1 D8 LED, OPTION, 0603 OPT: LUMEX OPTO/COMPONENTS INC., SML-LX0603SIW-TR

57 1 D9 LED, GREEN, COLORLESS DIFFUSED, 0603 OSRAM, LG L29K-G2J1-24-Z

58 1 F1 FUSE BLADE FAST ACTING, 30A, 58V, 10.9mm × 3.8mm × 8.8mm LITTLEFUSE, 0997030.WXN

59 1 FH1 FUSE HOLDER, 125V, 2-PIN, THT-HOLE LITTELFUSE, 178.6764.0001

60 1 HL1 IND., OPTION OPT

61 1 M5 XSTR., MOSFET, N-CHAN, 25V, PG-TDSON-8 OPT: INFINEON, BSC010NE2LSI

62 1 R24 RES., 0Ω, 1/10W, 0603 OPT: BOURNS, CR0603-J/-000ELF

63 1 R35 RES., OPTION, 0603 OPT


65 2 R48, R62 RES., OPTION, 0603 OPT

66 1 R50 RES., 549Ω, 1%, 1/10W, 0603 VISHAY, CRCW0603549RFKEA

67 2 R68, R69 RES., 10k, 1%, 1/10W, 0603 VISHAY, CRCW060310K0FKEC


69 1 R76 RES., 1Ω, 1%, 1/10W, 0603 OPT: YAGEO, RC0603FR-071RL

70 1 SW1 SWITCH, TACT., NO SPST, 0.05A, 12V, J-BEND, SMD 6.0mm × 3.5mm WURTH ELEKTRONIK, 434123050816

71 1 U4 IC., MEMORY, EEPROM, 2Kb (256×8), TSSOP-8 MICROCHIP, 24LC025-I/ST

Optional Remote Sense for VBAT: Installed


73 3 D1, D2, D10 DIODE, SWITCHING, 75V, 300mA, 350mW, SOT-23 DIODES INC., BAV99-7-F

74 1 D5 DIODE, OPTION, SOD-323 OPT

75 1 J3 CONN., RJ-25, FEMALE, 6-POS, 2.54mm, THT RA TE CONNECTIVITY, 5555165-1

76 1 Q2 XSTR., MOSFET, P-CH, 50V, 0.13A, SOT23-3 FAIRCHILD SEMI, BSS84

77 2 Q4, Q5 XSTR., NPN, 40V, 200mA, SOT23-3 ON SEMICONDUCTOR, MMBT3904LT1G

78 1 R14 RES., 100k, 1%, 1/10W, 0603 YAGEO, RC0603FR-07100KL

PARTS LIST



8


Rev. 0


79 2 R15, R60 RES., 100Ω, 5%, 1W, 2512 PANASONIC, ERJ1TYJ101U


81 1 R32 RES., 200k, 1%, 1/10W, 0603 NIC, NRC06F2003TRF



84 1 U2 IC., OP AMP, SO8 ANALOG DEVICES, LT1636CS8#PBF

Optional DC Input Source: Installed

85 1 C40 CAP., 2.2μF, X7R, 100V, 10%, 1210 AVX, 12101C225KAT2A

86 1 D11 DIODE, TVS, UNI-DIRECT, 70V, 400W, SMA DIODES INC., SMAT70A-13-F

87 1 D12 DIODE, ZENER, 12V, 150mW, SOD-523 DIODES INC., DDZ9699T-7

88 1 D13 DIODE, TVS, UNI-DIRECT, 24V, 400W, SMA DIODES INC., SMAJ24A-13-F

89 1 J7 ANDERSON PP15/45 1×2 ASSEMBLED FROM MP1-MP15 ANDERSON POWER, MULTI-PART PP15

90 1 M7 XSTR., MOSFET, N-CH, 100V, 80A, PG-TDSON-8 INFINEON, BSC070N10NS5

91 1 Q6 XSTR., NPN, 40V, 200mA, SOT23-3 ON SEMICONDUCTOR, MMBT3904LT1G

92 1 R70 RES., 100k, 1%, 1/10W, 0603 YAGEO, RC0603FR-07100KL


94 1 R72 RES., 1k, 1%, 1/10W, 0603 VISHAY, CRCW06031K00FKEA

95 1 U3 IC., IDEAL DIODE CONTROLLER, 6-PIN DFN EP ANALOG DEVICES, LTC4359CDCB#PBF

Optional EXTVCC Disconnect: Not Installed

96 1 Q1 XSTR., MOSFET, P-CH, 50V, 0.13A, SOT23-3 OPT: FAIRCHILD SEMI, BSS84

97 1 Q3 XSTR., NPN, 40V, 200mA, SOT23-3 OPT: ON SEMICONDUCTOR, MMBT3904LT1G

98 1 R3 RES., 100k, 1%, 1/10W, 0603 OPT: YAGEO, RC0603FR-07100KL

99 1 R16 RES., 10Ω, 1%, 1/10W, 0603 OPT: VISHAY, CRCW060310R0FKEA

100 1 R25 RES., 200k, 1%, 1/10W, 0603 OPT: NIC, NRC06F2003TRF

101 1 R28 RES., 26.1k, 1%, 1/10W, 0603 OPT: NIC, NRC06F2612TRF

Hardware, Connectors, Etc.

102 2 J1, J2 ANDERSON PP15/45 1×2 ASSEMBLED FROM MP1-MP15 ANDERSON POWER, MULTI-PART PP15

103 2 J4, J6 CONN., HDR, MALE, 1×4, 2.54mm, STR, VERT, THT, AU HTSW SERIES SAMTEC, HTSW-104-07-G-S

104 1 J5 CONN., HEADER SHROUDED, M, 8-POS, 2.54mm, THT- HOLE STR WURTH ELEKTRONIK, 61200821621

105 2 J8, J12 CONN., HEADER, HDR, 8-POS, 2mm, ST THT-HOLE AMPHENOL, 98414-G06-08ULF

106 1 J9 CONN., HDR, SHROUDED, MALE, 2×6, 2mm, VERT, ST, THT AMPHENOL, 98414-G06-12ULF

107 1 J10 CONN., HDR, SHROUDED, MALE, 2×7, 2mm, VERT, ST, THT MOLEX, 87831-1420

108 1 J11 CONN., HDR, MALE, 1×4, 2.54mm, STR, VERT, THT, AU HTSW SERIES SAMTEC, HTSW-104-07-G-S

109 3 MP1, MP6, MP11 CONN., POWERPOLE, HOUSING, + PIN, RED, 15A, 1-POS ANDERSON POWER PRODUCTS, 1327

110 3 MP2, MP7, MP12 CONN., POWERPOLE, HOUSING, – PIN, BLACk, 15A, 1-POS ANDERSON POWER PRODUCTS, 1327G6

111 6 MP3, MP4, MP8, MP9, MP13, MP14

CONN., POWER, SKT, 25.7mm, RA/THT-HOLE ANDERSON POWER PRODUCTS, 1377G12-BK

112 3 MP5, MP10, MP15 CONN., PCB MTG STAPLES, 1×2, STR, 12mm × 14.5mm ANDERSON POWER PRODUCTS, 114555P2

113 4 MTG1, MTG2, MTG3, MTG4

SCREW, MACHINE, 4-40 × 3/4, PHILIPS PAN HEAD, STL, ZINC CR3 OLANDER CO, 4C25PPIZR

114 4 SO1, SO2, SO3, SO4 STANDOFF, F/F, HEX, 4-40 × 1-INCH KEYSTONE, 2205

115 13 TP1, TP2, TP3, TP4, TP6, TP7, TP8, TP9,

TP10, TP12, TP13, TP14, TP15 TEST POINT, SILVER PLATE, PHOSPHOR BRONZE, 3.81mm × 2.03mm, 2.29mm H, SMT

KEYSTONE, 5019

PARTS LIST



9


Rev. 0

SCHEMATIC DIAGRAM

11

22

33

44

55

66

DD

CC

BB

AA

BG2

TG2

CSN

IMON

_IN

SW2

VIN

FBOU

T

CSP

BST2

SYNC

SS

SFI

SII

SIO

SFO

SDA

FBO

W

ADD

R

VDD

VDD

INTV

CC

INTV

CC

#SD

FBIN

CSN

IN

FBIW

ECO

N

INTV

CC

BG1

MO

DE

SW1

SW2

FBIR

RS+

RS+

TG1

SW1

VIN

R

EXTV

CC

SWE

N

SCL

VDD

VBA

T

VIN

R

CSNO

UT

CLKOUT

CKLDET

IOR

IOW

VIN

10k

R56

11.3

k

R43

1.1

k

R42

50V

NP0

220p

FC3

6

3.48

kR4

0

DFLS

1100

D7

2220

-J-X

210

0V

10u

F

C2

100n

FC3

7

1uF

C27

110k

R64

1225

3W3mR13

10uH

12

3

MTG

-NC

L1

25V

150u

F+

C3

21

CMM

R1U

-02

D3

10k

R59

470n

FC2

43.

3

R20

60V 4

5

3

678

12

BSC0

28N0

6N

SM

1

49.9

kR4

6

100

V12

10

2.2u

FC2

3

17V-

54V

PANE

LIN

*2 1

RED

BLK

J1

102k

R31

2512

2W3mR2

4.7n

FC3

5

8.06

kR6

2220

-J-X

210

0V

10u

FC1

2

0R36

10R63

DFLS

1100D6

1nF

C15

53.6

kR6

5LT84

91IN

TVC

C7

MODE 9

IMON

_IN

10

SHDN 11

CSN12

CSP13

LDO3

314

FBIN

15

FBOU

T16

IMON_OUT 17

RT 22

BG225

GATE

VCC

24BG123

BOOST227

TG228

SW229

SW131

TG132

BOOST133EX

TVCC

40

CSNO

UT41

CSPO

UT42

CSNI

N44

CSPI

N45

VIN

46

SYNC 21

VC 18

SS 19

CLKOUT 20

N/C 60

N/C 52

SRVO

_FB

OU

T38

SRVO

_FBI

N35

SRVO

_IIN

36

SRVO

_IOU

T37

SWE

N8

FBIR

1

ADD

R2

TEM

PSEN

SE3

VDD

4

FBO

W5

FBIW

6

STAT

US51

IOW 50

SWE

NO49

ECON

48

IIR

53

VIN

R54

GND 55

CLKDET 56

FBO

R57

GND 59

AVD

D58

SDA

61

GND 62

SCL

63

IOR 64

GND 65

U1

100

V12

06

1nF

C13

X5R

4.7u

FC3

0 X5R

4.7u

FC3

1

53.6

kR3

8

1R4

7

301kR5

7

35.7

kR6

7

1uF

C32

124k

R61

0R11

10R18

+C4

100n

FC3

4

1 OPT

R76

100

V

10n

FC2

150

V3.

3nF

C18

50V

3.3n

FC1

7

1R1

01R9

25V

4

5

3

678

12

BSC0

10NE

2LS

IM

3

4

5

3

678

12

OPT

M5

63V

33u

F

+

C8

100

V22

20-J

-X2

10u

FC1

1 X5R

4.7u

FC2

9

21k

R52

10R27

10R22

2512

2W5mR1

OPT

R48

100

V22

20-J

-X2

10u

FC6

50V

6.8n

FC3

8

SPST

-NO

SW1

100

V

10n

FC1

6

3.01

kR5

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Rev. 0

Figure 5. DC2703A-A-KIT Top Side

BOARD PHOTO: TOP SIDE



13


Rev. 0

Figure 6. DC2703A-A-KIT Bottom Side

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

BOARD PHOTO: BOTTOM SIDE



14


Rev. 0

ANALOG DEVICES, INC. 2020

07/20www.analog.com

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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