BQ24702: U4 Function - Power management forum - Power management

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Enhui Yang

Part Number: BQ24702

Tool/software:

Hi team,

What is the function of U4?

0 Christian Moyer 19 days ago

Hello Enhui,

U4 is the Batfet, it connect battery to system when valid adapter is not present.

The diodes are not labled, but they help to protect the BATFET gate from electrical overstress.

Best Regards,

Christian.