DRV8302: DVDD_UV condition

Hisao Uchikoshi

Part Number: DRV8302

Hi Experts,

DRV8302 outputs nFUALT pin when the fault condition occurs. One of the condistion is DVDD_UV or DVDD undervoltage which is triggered when DVDD undervoltage condition occurs. What is the UVLO voltage for DVDD?

Regards,

Uchikoshi

over 1 year ago

0 Aaron Barrera over 1 year ago

TI__Mastermind 26046 points

Hi Uchikoshi-san,

I will check to see if we have this info.

Thanks,
Aaron

0 Hisao Uchikoshi over 1 year ago in reply to Aaron Barrera

TI__Genius 13560 points

Hi Aaron,

Any update?

Regards,

Uchikoshi

0 Aaron Barrera over 1 year ago in reply to Hisao Uchikoshi

TI__Mastermind 26046 points

Hi Uchikoshi-san,

My teammates or I could not find this info, so today in the lab I will use a BOOSTXL-DRV8301EVM to sink current out of DVDD until the DVDD voltage starts to drop, and detect at what DVDD voltage the nFAULT pin goes low.

I will inform you once I have this data.

Thanks,
Aaron

+1 Aaron Barrera over 1 year ago in reply to Aaron Barrera

TI__Mastermind 26046 points

Hi Uchikoshi-san,

I confirmed on the EVM today that the DVDD undervoltage falling threshold is 2.43V and the rising threshold is 2.61V.

Thanks,
Aaron

0 Hisao Uchikoshi over 1 year ago in reply to Aaron Barrera

TI__Genius 13560 points

Hi Aaron,

thank you so much for your effort!

Regards,

Uchikoshi

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DRV8302: DVDD_UV condition