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TPS4810-Q1: Precautions when connecting a capacitor to the SRC terminal

Conor
Guru 10940 points
Part Number: TPS4810-Q1

Tool/software:

Hi,

The TPS4810-Q1 is a dual gate driver that allows independent control inputs (INP1, INP2).

During application operation, there are times when the IC's Q1 is ON and Q2 is OFF.

This is an application in which the load voltage after Q2 is expected to fluctuate greatly. Therefore, when Q1 is ON and Q2 is OFF, power is planned to be supplied to the outside from the SRC terminal.

For this reason, about 2 to 3 1uF capacitors are connected to the SRC terminal. I am concerned that connecting a capacitor will cause the voltage at the SRC terminal to rise, which could cause the IC to malfunction.

Are there any concerns? Is there no problem as long as it does not exceed the absolute maximum rating of the SRC terminal? I plan to evaluate it on a custom board in the future, but I would like to hear comments from TI before that.

Thanks,

Conor