TPS65987D: Using PD controller without MCU

Mason Noh

Expert 2490 points

Part Number: TPS65987D

Hi TI,

My system need supply voltage 20Vdc from the adapter supports PD.

I don't need to change VBUS voltage (ex: 5V, 9V, 12V).

TPS65987D Can be used without MCU or memory?

over 5 years ago

0 Rahul Sharma16 over 5 years ago

TI__Expert 6430 points

Hi Mason,

TPS65987D can support upto 20V@3A without any external flash and MCU. But to enable 20V@5A you need to use an external SPI flash but no MCU is required.

Please click "This resolves my issue" if I was able to answer your query.

Thanks,
Rahul

0 Mason Noh over 5 years ago in reply to Rahul Sharma16

Expert 2490 points

Thank you for your prompt reply.
How can I set 20Vdc without MCU?
Could you advise me about this?

0 Rahul Sharma16 over 5 years ago in reply to Mason Noh

TI__Expert 6430 points

Hi Mason,

We have a predefined configurations as part of our ROM firmware in the TPS65987D. You can choose a suitable value of pull-up/pull-down combination to choose a specific configuration with a 20V PDO.

Please see Table 5 & 7 of the datasheet for more information.

Please click "This resolves my issue" if I was able to answer your query.

Thanks,
Rahul

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TPS65987D: Using PD controller without MCU