[TPS65911] Over current protection in each power rail

Antony Lin

I see we have over current protection in LDOs. How about the mechanism for SMPS and VDDCtrl? Any related mechanism? For LDOs, what will happen if over current is detected? Turn off LDO?

Thanks,

Antony

over 13 years ago

0 Fabian Stel over 13 years ago

TI__Intellectual 2090 points

=> About LDO and SMPSs, it is more a Load current limitation. The resource will not be turned off but the output current will be limited.
=> About DCDCctrl, i don't think there is short circuit mechanism.

0 Antony Lin over 13 years ago in reply to Fabian Stel

TI__Genius 13480 points

Hi Fabian,

But I can't find the Load current limitation value for SMPS as specified for LDO in our datasheet. Do you have the numbers?

Thanks,

Antony

0 Fabian Stel over 13 years ago in reply to Antony Lin

TI__Intellectual 2090 points

SWCS049G page 16 PMOS and NMOS limittation

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[TPS65911] Over current protection in each power rail