BQ51013B: Battery Charging Capabilities

Hello Dhruvit,

We are looking into this further and will respond by the end of the day.

To my knowledge there is no device which will incorporate all of your needs into a single IC.

Sincerely,

Wyatt Keller

Hi Dhruvit

We do not have one IC that will incorporate all the functions but have a couple of reference designs that show how multiple IC could be used to possibly meet your needs.

TIDA-00712 - Smartwatch Battery Management Solution, here

TIDA-00668 - 50ma Wireless Charger Booster Pack, here

TIDA -00669 - 500mA Wireless Charger Booster Pack with Gauge, here

Hi,

Thankyou for this suggestion here I have size constraints where I need to fit 1mcu 1 flash and 1 PMIC and 1 mems sensor in 40mm round dia round dia.

I have found 1 bq51051b as complete package.

Which gives qi wireless charger and battery charging capability.

Will it be compatible for my device as my device will not be in use while charging and after charge complete it Solly work on 3.7v battery which may have output of 4.1 to 3.3 voltage rating curve while discharging.

So will Bq5101B work here I will manage to power mcu and other 2 components by mcu inbuilt buck supply.

Hi 

The BQ51051B has a couple of limitations:

1.) It is not compatible with latest wpc standard Qi 2.0, unit will meet Qi 1.2

2.) The charge accuracy decreases with output current, charge needs to be about 100mA and termination above 50mA. 

thanks for notable point 

is that mean it will take 5 hrs to fully charge the 500mah battery ?
this is so unfortunate that i have no option for more circuitry

did you have any other option which can power this slightly faster and have qi capability also, with single package charging current near by 300mA is sufficient.

Hi bill,

Thankyou for clarifying I will take this and I think bq51051B is perfect for my application where I want all things in single package.

I hope ti will develop latest generation qi wireless charging and battery charging ic in 1 single package in future.

Thankyou for your hard work if I had any questions regarding this I will surely contact you.

Regards.

hey bill,

can i get link of referance design of this board for stable performance 

thanks & regards

Take a look at TI Reference design TIDA-00669.

This design has the BQ51050B (4.2V) but same design is used on BQ51051B (4.35V)

hey bill, one more thing as i am sowing schematic i cant see buck or ldo output supply pn in bq51051b is that mean i need separate buck boost converter which used to power my mcu ?

thanks & regards

The BQ51051B is battery charger only.  Will need power supply after battery to power MCU and other circuits. 

Some possible circuits are shown on TIDA-00669