Other Parts Discussed in Thread: BQ25302, TVS2200, , TPD2E2U06
Tool/software:
Hello,
currently we are using TPD3E001DRLR as ESD diode for our 5V USB interface.
To VBUS we have connected the charger BQ25302RTER, which generates V_SYS (BQ25302, pins 13+14).
The fuel gauge BQ27427YZFR is connected between a Li-Ion battery and V_SYS.
Normally when an USB charger is connected to our device, the ICs will decide that only 5V may be applied to VBUS.
Unfortunately we cannot control which charger will be connected to our USB port.
Badly designed chargers may directly connect 24V to VBUS, which would not damage the charger (abs. max 28V, operating 6.2V), but would damage the ESD diode (max. 5.5V).
Is there component which could be added to the schematic to prevent the ESD diode to be damaged in such case?
Or maybe even completely different components which can cover such case?
Thank you very much in advance.
Kind regards
Daniel