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BQ25886: OVP protection circuit for D+/D-

Satoshi
Guru 19645 points
Part Number: BQ25886

D+ and D- pin are failed by large voltage spike when external board connected.

Now D+ to GND, and D- to GND are connecting 5.6V zener diode, but ineffective to overvoltage spike.

I planning to add series resistance on D+ line and D- line.

What is the maximum series resistor value?

Best regards,

Satoshi