TPS2HCS08-Q1: What is the "smaller internal FET" and "larger internal FET" mean?

Leo Ma

Expert 3696 points

Part Number: TPS2HCS08-Q1

Tool/software:

Hi Expert,

What is the "smaller internal FET" and "larger internal FET" mean?

Is this one "smaller internal FET"

Thanks for help!
Best,

Leo

3 months ago

0 Patrick Shalton 3 months ago

TI__Mastermind 28870 points

Hi Leo,

There are two power FETs for each channel - the large FET and the small FET.

The small FET refers to the manual LPM FET, which is a separate higher-Ron FET in the device specifically for manual LPM. On the block diagram, the main FET is in the place of both the large and small FETs.

The large FET is the FET that is active when the channel is in Active mode, and it can carry the full range of device currents.

Thanks,

Patrick

0 Leo Ma 3 months ago in reply to Patrick Shalton

TI__Expert 3696 points

Hi Patrick,

Thanks for explanation.

So, is my understanding right as this? ↓

Best Regards,

Leo Ma

0 Patrick Shalton 3 months ago in reply to Leo Ma

TI__Mastermind 28870 points

Hi Leo,

That's correct.

Thanks,

Patrick

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TPS2HCS08-Q1: What is the "smaller internal FET" and "larger internal FET" mean?