This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS25980: IMON PIN Filter Recommendation

Part Number: TPS25980

Hi

My customer wants to add the RC filter on the IMON PIN according to the datasheet recommendation.

However, they are confused about the parameter's selection of the RC filter.

According to the datasheet, the resistor should be selected larger than 10kOhm.

My questions are given following:

1. Shall I recommend that the resistor of the filter should be 10 times than the RIMON, in order to avoid the loading effect on the IMON PIN?

2. Can the capacitor be selected according to the cut-off frequency flexibly, which can be decided by the customer, does it have any limitation?

  • Hi Matt,

    Customer can choose RC based on there requirements.

    1. Shall I recommend that the resistor of the filter should be 10 times than the RIMON, in order to avoid the loading effect on the IMON PIN? Yes. this should be fine.

    2. Can the capacitor be selected according to the cut-off frequency flexibly, which can be decided by the customer, does it have any limitation? Yes customer can decide.

    Regards

    Kunal Goel