Dear Experts,
My charger using BQ25892 is running OK in charge mode. Now I want to use boost mode without host control.
Following d/s and my last question (link) , I checking:
1. BAT above BATLOWV <== OK
2. VBUS less than BAT+VSLEEP (in sleep mode) <== OK
3. Boost mode operation is enabled (OTG pin HIGH and OTG_CONFIG bit =1) <== OTG pin is pulled to HI
4. Voltage at TS (thermistor) pin is within range <== OK
5. After 30 ms delay from boost mode enable
Based on Jeff answer (link), I think only need OTG pulled Hi or OTG_CONFIG bit =1.
But, in my design, when I pull OTG pin to HI and disconnect adapter, there is NO voltage present in VBUS pin.
Can you give some insight please.
Thanks
