Other Parts Discussed in Thread: BQ76930
dear TI's partner,
In TIDA-00449 design reference, i find the LDO (Regout pin) output voltage is from Regsrc pin. meanwhile,the Regsrc pin voltage is from external mosfet Q3's s pole, can you tell me what is the voltage of Regsrc pin if the Vbat voltage is 42v(assume 10s cell);
in addition, why mosfet need two place supply voltage(vc10x point and c10 point) ; why we need C3 and C6?
that is to say, if the battery pack is 10s, C10 voltage is about 42v, how does the Recsrc's voltage generate and how the regout can generate 2.5v or 3.3v voltage?
thanks.BQ76930原理图(2015年).pdf