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BQ25703A: BQ25703A application query

Part Number: BQ25703A
Other Parts Discussed in Thread: BQ25723

Hi

Can you help to determine whether the BQ25703A can meet the following requirements?

Case1: The POGO PIN end is connected to an external power bank, BUS_P input, and VSYS supplies power to the system load end, which is required to support up to 24W; in this scenario, the external Type-C connected to the platform end may be connected to a USB peripheral (not a charger or a PC)

Case2: When the POGO PIN terminal is not connected to the power bank, the Type-C externally connected to the platform is connected to the charger, and the VSYS terminal of the three-party charging chip can charge the small battery; can the external MOS tube of the Charger in the figure below be always on?

Case3: The POGO PIN is connected to an external charging treasure, and the external Type-C connected to the platform is connected to the charger. The system platform can charge the VSYS terminal of the third-party charging chip through the platform-side Charger, and then the three-party Charger can reverse OTG to the external charging treasure through the POGO PIN. powered by.

If BQ25703A cannot meet the above three requirements, is there a better charging IC to recommend?

Waiting for your reply.

Thanks

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