Texas TPS25940EVM-635, User Manual

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General Configurations
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4 SLVUA44B – June 2014 – Revised July 2017
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Copyright © 2014–2017, Texas Instruments Incorporated
TPS25940EVM-635: Evaluation Module for TPS25940X
4 General Configurations
The following sections describe physical access, test equipment, test setup, and test procedures for the
EVM.
4.1 Physical Access
Table 2 lists the TPS25940EVM-635 input and output connector functionality. Table 3 describes the test
point availability and Table 4 describes the jumper functionality.
Table 2. Input and Output Connector Functionality
Connector Label Description
J3 CH1 VIN1(+), GND(–) CH1 Input power supply to the EVM
J2 VOUT1(+),GND(–) CH1 Output power from the EVM
J8 CH2 VIN2(+), GND(–) CH2 Input power supply to the EVM
J7 VOUT2(+),GND(–) CH2 Output power from the EVM
Table 3. Test Points Description
Channe
l Test Points Label Description
CH1 TP3 VIN1 CH1 Input power supply to the EVM
TP8 EN_UV1 CH1 Active high enable and under voltage input
TP5 OVP1 CH1, Active high overvoltage input (>16.5V)
TP11 IMON1 CH1 Current monitor. Load current = 1.187 × voltage on TP11
TP2 VOUT1 CH1 Output from the EVM
TP9 PG1 CH1 Power good test point
TP4 FLTb1 CH1, Fault test point
TP12 GND GND
TP13 GND GND
TP14 GND GND
CH2 TP15 VIN2 CH2 Input power supply to the EVM
TP17 EN_UV2 CH2 Active high enable and under voltage input
TP18 OVP2 CH2, Active high overvoltage input
TP22 IMON2 CH2 Current monitor. Load current = 1.187 × voltage on TP22
TP16 VOUT2 CH2 Output from the EVM
TP21 PG2 CH2 Power good test point
TP20 FLTb2 CH2, Fault test point
TP24 GND GND
TP25 GND GND
TP26 GND GND
Table 4. Jumper and LED Descriptions
Jumper Label Description
J1 J1 Priority MUX Setting (applicable to TPS25942EVM-635)
J4 LO - HI CH2 Current Setting
J5 J5 PG1 and FLTb1 setting
J6 J6 DEVSLP1 Setting
J9 LO - HI CH2 Current Setting
J10 J10 DEVSLP2 Setting
D2 (Red) D2 CH1 circuit fault indicator. LED turns on when the internal MOSFET is disabled due to
a fault condition such as over load , short circuit, under voltage etc.