TLV320ADC5120: Micbias OCP behavior

Will Wang47

Expert 5820 points

Part Number: TLV320ADC5120

Hi team,

Could you help check the OCP behavior of TLV320ADC5120 Micbias? What will happen when OCP happen?

Thanks and Best Regards,

Will

4 months ago

0 Sanjay Dixit 4 months ago

TI__Mastermind 22960 points

The output voltage should fold back to maintain 6ma. If for eg MicBias is 2.75v and Load increases above 6ma then the Voltage stops reducing to a level such that the current remains at 6ma

0 Sanjay Dixit 4 months ago in reply to Sanjay Dixit

TI__Mastermind 22960 points

However I shall also double check with design team so I request you to wait for my reply

0 Sanjay Dixit 3 months ago in reply to Sanjay Dixit

TI__Mastermind 22960 points

I asked our design team. If the Load current exceeds 6.1ma the MicBias Shuts down, You can read the above register to confirm if MicBias is powered down

0 Will Wang47 3 months ago in reply to Sanjay Dixit

TI__Expert 5820 points

Thanks Sanjay for helping on this. This is clear now.

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TLV320ADC5120: Micbias OCP behavior