Other Parts Discussed in Thread: PMP40441, TPS65251,
Hi ,
Customer want to implement USB PD like reference design PMP40441. Below is the block diagram. The MCU power is from TPS65251 .
They want to ask when adapter plug in and battery be removed or battery depletion whether or not the VSYS have output voltage
,they are worry about if the VSYS do not output voltage the mcu can't be power up to config bq25713 and tus422.
The CELL_BATPRESZ Iis config to 3 cell. If VSYS can output voltage on VSYS without any config. what voltage will be expect on VSYS.
Thanks