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TPS2H160-Q1: Does CS pin of TPS2H160-Q1 can measure low current?

Jason Chien42
Expert 1180 points
Part Number: TPS2H160-Q1

Dear Sir:

                Does CS function of  TPS2H160-Q1 can measure low current such as 30mA and 120mA? How about the accuracy?  BTW , it can set under 30mA then turn on channel1 and set over 120mA then turn on channel2?Thans.

Jason

  • 0
    TI__Mastermind 28260 points

    Hello,

    The accuracy at 30mA is ±17%. The accuracy at 120mA is ±4%. Please check spec in page 7. The current sense accuracy does not depend on the pull down resistor value on CS pin and can not be set externally. The accuracy depends only on the load current.

    The pull down resistor value on CS pin can be changed to generate same voltage level at different load currents. This requires a resistor, transistor and channel enabling signal INx to drive the transistor. But this does not change the accuracy.

    Regards