Texas Instruments TPS7B81EVM-025, User Manual, Page: 4 / 14

EVM Setup
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4 SBVU051 – February 2019
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TPS7B81EVM-025 Evaluation module
2 EVM Setup
This section describes how to properly connect and setup the TPS7B81EVM-025, including the jumpers
and connectors on the EVM board.
2.1 Input/Output Connectors and Jumper Descriptions
2.1.1 J1 – DIODE BYPASS
Diode D1 bypass. To bypass diode D1, connect a jumper to short the two terminals of J1.
2.1.2 J2 – IN_S
Input sense.
2.1.3 J3 – IN
Input power-supply voltage connector. Twist together the positive input lead and ground return lead from
the input power supply, and keep them as short as possible to minimize input inductance.
2.1.4 J4 – OUT
Regulated output voltage connector.
2.1.5 J5 – OUT_S
Output sense.
2.1.6 J6 – SHORT TO ENABLE
Output enable. To enable the output, connect a jumper to short V
IN
to EN.
There is a pulldown resistor, R1, between EN and GND so that the output is disabled when EN is not
driven to a higher voltage. If making I
GND
measurements, be sure to remove R1.
2.1.7 J7 – GND
Input ground return connector.
2.1.8 J8 – GND
Output ground return connector.
2.1.9 TP1 – VIN
V
IN
test point.
2.1.10 TP2 – IN_S
Input sense test point.
2.1.11 TP3 – OUT_S
Output sense test point.
2.1.12 TP4 – VOUT
V
OUT
test point.
2.1.13 TP5 – EN
Enable test point.