TPSM84212: When Vin is lower than 14.5V, what is the output?

Amelie Zheng

Genius 10865 points

Part Number: TPSM84212

Hi Team,

The minimum of input is 14.5V in TPSM84212EAB..If the input is 12V or less than 12V, will the output follow input.

customer could accept such situation A. For example, Vin =12V, Vout =11.9V.

But if Vin =12V, Vout =0V, customer can't accept.

over 4 years ago

0 Lishuang Zhao over 4 years ago

TI__Expert 7500 points

Hi Amelie,

Jean is looking into this case. Will feedback to you soon.

Thanks,

Lishuang

0 Jean Picard over 3 years ago in reply to Lishuang Zhao

TI__Intellectual 1125 points

Amelie Zheng

The device will turn-on and begin to try regulating once VIN is above the VIN_UVLO (4.1V typ). After that, the device will have anywhere from 50mV to 500mV of drop out depending on load current. See Figures 18 and 19 of the datasheet.

Regards

Jean

0 Amelie Zheng over 3 years ago in reply to Jean Picard

TI__Genius 10865 points

Thanks a lot,Jean!

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TPSM84212: When Vin is lower than 14.5V, what is the output?