LP8863-Q1: How to reset LP8863-Q1?

Soichi Nishimura

Part Number: LP8863-Q1

Hi team,

I'd like to know how to reset LP8863-Q1. I read this thread, which explains only way to reset is toggling VDD. (https://e2e.ti.com/support/power-management/f/196/t/634635)

For toggling VDD, can I confirm how to treat the rest of power supply pin? Can the others pin excepting VDD pin be continued to apply some voltage?

Regards,

Nishimura

0 Shirley He over 4 years ago

Hi Nishimura-san,

Here's the recommended procedure to turn off VDD:

Pull EN low for more than 400ms ->Pull PWM, SCLK_SCL, SDI_SDA, SS_ADDRESS, IF_SEL, BST_SYNC low -> Pull VDDIO, VDD low

It means always to keep the other logic pins lower than VDDIO and VDD.

0 Soichi Nishimura over 4 years ago in reply to Shirley He

Hi Shirley,

Thank you for your answer.

Do you have the recommended procedure to turn ON of VDD? How long pull VDD turn on before EN high?

Regards,

0 Shirley He over 4 years ago in reply to Soichi Nishimura

Hi Nishimura-san,

It's recommended to turn EN high 10ms after VDD and VDDIO is high.

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