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BQ24151 Li-Ion Charger with USB-OTG Support

fruh Laurent
Prodigy 85 points
Other Parts Discussed in Thread: BQ24151, BQ24266

Hello,

I need to confirm a design (without component) please about the bq24151 used without any microcontroller.

I want to use in BOOST mode or CC/CV only by a switch.
pin using the OTG.
case 1: USB is connected, I turn on my lap => If pin OTGVcc => CC/CV => 500mA load, so if 0V 100mA
case 2: USB is not connected, the OTG is VCC => BQ is in BOOST mode.
Do you confirm ?

if i want to go to 1A =>Do you recommend Bq24262 or another ref more "simple"?

Regards

  • 0
    TI__Guru**** 166826 points

    You can only enter OTG Boost from without HOST mode, i.e., via I2C communication for both the bq2415x family and bq24262.  The bq24266 is a standalone device that allows you to set the charge current with an external resistor and enter boost mode with logic level input pins.