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TPS4H000-Q1: Schematic design review

Shuai Yuan
Intellectual 2290 points
Part Number: TPS4H000-Q1

Hi Team,

I'm FAE, supporting Lenovo LCFC. Now customer uses TPS4H000BQPWPRQ1 as automotive smart high side switch, could you please help review below schematic and give some advice? Thanks a lot~

FPD LINK III &POC.pdf

Best Regards

Steven Yuan

  • 0
    TI__Genius 16390 points

    Hi Steven,

    I have a couple of comments regarding the schematics:

    1. The series protection resistor for sense pin needs to be after the SNS resistor. Otherwise the pin voltage at SNS would be too high.

    2. The current limit resistor limits the current to <50mA. The accuracy of current limit threshold under 50mA is undefined. Please set the current limit threshold to be above 50mA to get a meaningful limit.

    Otherwise the schematics look good.

    Regards,

    Yichi