TPS65988: Embedded Controller Power Source

Akash S

Part Number: TPS65988

Hi,

Is it possible to use an Embedded controller with the PD in case my device is not battery powered since the LDO_3V3 is only capable of 25mA?

over 5 years ago

0 Hari Patel1 over 5 years ago

TI__Genius 12700 points

Hi Akash,

Yes you may connect an embedded controller to the PD controller. The LDO_3V3 is used to power internal circuitry and will not supply much current to an external load.

Thank you,

Hari

0 Akash S over 5 years ago in reply to Hari Patel1

Intellectual 375 points

Hi Hari,

In that case, how do we power the EC? The device is not battery powered.

Does TI have any part suggestion for EC?

0 Hari Patel1 over 5 years ago in reply to Akash S

TI__Genius 12700 points

Hi Akash,

I took a look at one of your other threads and saw your block diagram. If you are planning to include an EC in your design and getting power from the PD controller you will need to use the internal power path PPHV as it will be capable of supplying sufficient power to the EC. So when a source device connects to the PD controller, it will power VBUS and in turn PPHV to power the EC.

Thank you,

Hari

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TPS65988: Embedded Controller Power Source