DRV8840 Thermal and OCP questions

user4771048

Other Parts Discussed in Thread: DRV8840

The Thermal Shutdown spec is 160degC (150 to 180) on the DRV8840.

In the descriptions of the data sheet "Once the die temperature has fallen to a safe level..."

Is there a spec on this temperature level?

Also, in the Overcurrent Protection section: "If this analog current limit persists for longer than the OCP time"

Is there a spec on this "OCP time"?

Thanks!

0 Rick Duncan over 9 years ago

Hi,

We will have to check on the safe level to restart. This may take a few days.

The OCP time is typically 2.5us and can be as high as 3.1us.

0 Rick Duncan over 9 years ago in reply to Rick Duncan

Hi,

Typically, you can expect the device to be re-enabled once the temperature drops 30C to 50C.

0 user4771048 over 9 years ago in reply to Rick Duncan

Many thanks Rick

Regards,

Bernie

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