5.2.5 Fan
Some of the components in this EVM may exceed temperatures of 60°C during operation. A small fan capable of
200 LFM to 400 LFM is recommended to reduce component temperatures while the EVM is operating at heavy
loads. Exercise caution when touching the EVM while the fan is not running, and always exercise caution when
touching any circuits that may be live or energized.
5.2.6 Recommended Wire Gauge
Input Wires, VIN to J1 (12-V input):
The minimum recommended wire size is 1x AWG #14 per input
connection, with the total length of wire less than 4 feet (2 feet input, 2 feet return). Maximum input current
should be in the order of 3.5 A.
Output Wires, J3 and J4 to Load:
The minimum recommended wire size is 2x AWG #14, with the total length
of wire less than 4 feet (2 feet output, 2 feet return). Maximum output current should be in the order of 20 A.
5.3 Recommended Test Setup
Figure 5-2. TPS40400EVM-351 Recommended Test Set Up
is the recommended test set up to evaluate the TPS40400EVM-351. It is recommended to work at an
ESD-safe workstation while testing the EVM.
Test Setup
8
TPS40400 Buck Controller Evaluation Module User's Guide
SLUU535A – SEPTEMBER 2011 – REVISED JANUARY 2022
Copyright © 2022 Texas Instruments Incorporated
