BQ51050B: question about charging

TS Yang

Part Number: BQ51050B
Other Parts Discussed in Thread: BQ24040

Hi,

I would like to make sure that the BQ51050BRHLR is capable of wireless charging and USB charging.

Basically, it will be used by wireless charging, but if there is a problem with the wireless charging side, Can it charge with USB?

thanks,

over 7 years ago

0 Bill Johns over 7 years ago

TI__Guru* 75906 points

Hello
The bq51050B is a wireless receiver and battery charger often referred to as a wireless power direct battery charger. Obviously wireless power to battery charging is not a problem and the bq51050B can support this with very few external parts. USB power cannot be applied to the bq51050B battery charger section. Another charger that would accept the USB input and charge the battery would be required.
AD input can be use to identify when USB power is applied.
See Figure 37 in data sheet.

0 TS Yang over 7 years ago in reply to Bill Johns

Genius 4800 points

thanks for your kind answer.
So, is there any device that support both wireless and USB power source?
thanks,
TS

0 TS Yang over 7 years ago in reply to Bill Johns

Genius 4800 points

Hello Bill,
If we need to go to a two chip solution, I would be grateful if you could give us some suggestions for this.
thanks,
TS

0 TS Yang over 7 years ago in reply to Bill Johns

Genius 4800 points

Hi Bill Jons,
Please let me know if you can suggest a block, it will very helpful to us.
TS

0 Bill Johns over 7 years ago in reply to TS Yang

TI__Guru* 75906 points

Hi TS Yang

Figure 37 in the bq51050B data sheet shows a two chip solution using a bq24040 to support both wireless charging and USB port charging.

Power management

Power management forum

BQ51050B: question about charging