Other Parts Discussed in Thread: TPS25750
Hello,
I have a couple of question regarding BQ25792 (Battery Charger IC) and TPS25750D (USB PD Interface):
- When using TPS25750D + BQ25792 as in the reference design below, if the Type C connector from the circuit is connected to a wall charger that supports USB PD 3.0 and advertises it's source capabilities, how can we select the one we would like to use from the options using TPS25750D through a Host Controller?
- Now when the same circuit is connected as a Source to a cell phone, say Samsung S21, how does TPS25750D advertise the options for the circuits source capability. Is there a way to set it through I2C?
- Can TPS25750D recognize charging protocols such as Quick Charge 4.0/5.0, Samsung Super fast Charging 1.0, and so on, when connected to a wall adapter?
- In the reference design above (image shown below), why is a separate 5V DC/DC used for sourcing. Couldn't we just use the VBUS net (with BQ25792 in reverse mode) with a switch to direct it to the output?
- When using 2S cell configuration with BQ25792, can you recommend some cell balancing IC?