TPS53315: Datasheet maximum rating check

Ray Chang

Intellectual 1345 points

Part Number: TPS53315
Other Parts Discussed in Thread: TPS53355,

Hi Team,

Would you please help to check the output voltage of LL? is it correct?

It looks different with TPS53355.

over 6 years ago

0 JohnTucker over 6 years ago

TI__Guru**** 191445 points

Ray,

Yes they are different. TPS53315 is a 12 A device, while TPS53355 is a 30 A device.

0 Ray Chang over 6 years ago in reply to JohnTucker

TI__Intellectual 1345 points

Hi John,

I know the current rating is different,

Need you help to check the LL voltage range which shows on the datasheet,

TPS53315 shows the LL maximum voltage is -7V,

TPS53355 show s the LL maximum voltage is 27V,

It's really big difference, is it correct?

0 JohnTucker over 6 years ago in reply to Ray Chang

TI__Guru**** 191445 points

Ray,

As you know, there will be overshoot/undershoot on both the rising and falling edge of the LL node voltage waveform. TPS53355 specifies both rising overshoot (27 V) and falling undershoot (-7 V) transients. TPS53315 only specifies the falling edge transient undershoot (-7 V).

0 Ray Chang over 6 years ago in reply to JohnTucker

TI__Intellectual 1345 points

Hi John,

Understood, thanks for your confirmation.

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TPS53315: Datasheet maximum rating check