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TIDA-050047: TIDA-050047

Dinesh Katkar
Prodigy 20 points
Part Number: TIDA-050047
Other Parts Discussed in Thread: TPS25751, BQ25798, BQ25731, BQ25713

Tool/software:

We are planning to design the Power Bank with below configurations.

Connector type (Input side) 

USB Type-C  port 

Input voltage 

5V / 9V 

Input current 

3A / 2A 

Connector type (Output side) 

USB Type-C port  x1, USB-A port  x2 

Output voltage 

USB Type-C is 5V / 9V 

USB-A is 5V 

Output current 

Total 32 W - USB Type-C is 3 A/2.22 A 

USB-A is 2.4 A 

Battery type 

Rechargeable lithium-ion battery 

Battery capacity 

3.6V, 15000 mAh 

Charging time 

Approx. 3 hours 35 minutes  

Request you to please suggest suitable ICs for the same.

  • 0
    TI__Mastermind 37855 points

    Hi Dinesh,

    Regarding the USB-C PD IC, we recommend using the TPS25751.

    Let me reassign this thread to the BQ team so they can give a recommendation on the BQ IC.

    Thanks and Regards,

    Chris

  • 0 in reply to Christopher Lim1
    TI__Guru**** 166626 points

    Hi Dinesh,

    Charge current needs to be >> (15000mA/Hr)/3.5hours = 4.3A. BQ25798 package gets thermally limited to 4.5A.  So I recommend BQ25713 or  BQ25731 controller with external FETs.   Note that these charge controllers do not provide charge termination.  So some other method (e.g. gas gauge IC) is needed so the host send I2C charge stop comment to the BQ25713/BQ25731.

    Regards,

    Jeff