Texas Instruments TPS2663-166EVM, Руководство пользователя, Страница: 12 / 17

Test Procedure and Results
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12 SLVUBQ5A – August 2019 – Revised October 2019
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TPS2663-166EVM: Evaluation Module for TPS2663xPWP and
TPS1663xPWP
6.6 Overvoltage Clamping Test [TPS26633 Only]
Use the following instructions to perform the overvoltage clamping test:
• Set the input supply voltage V
IN
to 35 V and a current limit of 10 A and enable the power supply.
• Connect the power supply output to the T1 terminal of the EVM.
• Connect a load of 25
Ω
(50 W) at output terminal T2.
• Observe the waveforms of V
IN
, V
OUT
, FLT, and I
IN
using an oscilloscope.
Figure 11 shows an example of overvoltage clamping on the TPS2663-166EVM for CH1. The device
clamps the voltage to V
(OVC)
voltage, turns off and retries.
Figure 11. TPS2663-166EVM Overvoltage Clamping for CH1 (V
IN
= 35 V, I
LIM
= 6 A, MODE = GND)