DRV8889-Q1: Body Diode Current Rating

Muwei Zheng

Part Number: DRV8889-Q1

Hi team,

I have a question from customer about body diode current rating of DRV8889-Q1:

- Please tell me the current rating of the body diode of the output H-bridge.
(There is a path for current to flow through the body diode when the output terminal is short-circuited, and we are concerned that the body diode may be damaged. Please see the attached image.)

- If the current rating is not specified, please tell me how to verify that the body diode is not damaged.

Thank you,

Muwei Zheng

over 3 years ago

0 Jacob Thompson over 3 years ago

TI__Mastermind 23421 points

Hello,

The body diode can handle the same voltage and current as the device. 50V / 2.4A in this case.

Cheers,

Jacob Thompson

0 Muwei Zheng over 3 years ago in reply to Jacob Thompson

TI__Intellectual 1580 points

Hello Jacob,

Thank you. Is it correct that 50V is the maximum reverse voltage of the body diode?

+1 Jacob Thompson over 3 years ago in reply to Muwei Zheng

TI__Mastermind 23421 points

Yes, 50V is the maximum rated reverse voltage of the body diode. Depending on your specific setup you might be able to get away with more than that for short periods of time but it isn't recommended.

Regards,

Jacob

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DRV8889-Q1: Body Diode Current Rating