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DRV3201-Q1 VS recommended operating range and VS under voltage

Toshio Ushikubo
Mastermind 9620 points

Hello,

Please answer following question from customer.

 

Q1:

Performance such as gate driver unit has been guaranteed by VS = 4.75V to 30V, and under voltage shutdown level(V VSUV)” is 4.5V to 4.75V.

Has DRV3201 been designed it can operate normally until occurrence of under voltage shutdown? (Does DRV3201 operate normally between 4.75V and V VSUV?)

 

Q2:

Please advise the purpose of under voltage shutdown.

For example, internal analog circuit(Gate-Driver, Current Sense Amp, Phase comparator…) may not work correctly while VS voltage is below 4.75V, so it need to stop (Pull-down) the Gate-Driver output.

 

Best Regards.

  • 0
    TI__Mastermind 23810 points

    An engineer has been assigned to this question.  Please let us know if you don't receive an answer in a few days.

  • 0 in reply to Clancy Soehren
    Mastermind 9620 points

    Hello Clancy-san,

    Thank you for your cooperation.

    Best Regards.

  • 0 in reply to Toshio Ushikubo
    Mastermind 9620 points

    Hello Clancy-san,

    I didn’t receive answer, so please ask engineer again.

    Thanks and Best regards.

  • 0
    TI__Intellectual 1045 points

    Q1:

    Performance such as gate driver unit has been guaranteed by VS = 4.75V to 30V, and under voltage shutdown level(V VSUV)” is 4.5V to 4.75V.

    Answer : 4.75v. Gate driver output voltage can be lower than specified value between 4.5 to 4.75v however device functions.

    Has DRV3201 been designed it can operate normally until occurrence of under voltage shutdown? (Does DRV3201 operate normally between 4.75V and V VSUV?)

    Answer : 4.75v. Gate driver output voltage can be lower than specified value between 4.5 to 4.75v however device functions.

     

    Q2:

    Please advise the purpose of under voltage shutdown.

    For example, internal analog circuit(Gate-Driver, Current Sense Amp, Phase comparator…) may not work correctly while VS voltage is below 4.75V, so it need to stop (Pull-down) the Gate-Driver output.

    Answers : Yes. Please refer to table5 in the datasheet.