BQ25703A: 12v to 19v 2A laptop power bank

ENIOLA SONOWO

Part Number: BQ25703A
Other Parts Discussed in Thread: TPS65987D

Goodday, I'll love to build a laptop power bank with the BQ25703A that provides a 19v 2amp.But I don't know which controller to use with the BQ25703A. I have little knowledge about mcu, thanks.

over 5 years ago

0 Shishuo Zhao over 5 years ago

TI__Expert 3320 points

Hi There:

If you need USB Type-C interface, TI has USB Type-C power bank reference design can be leverage for your design:

http://www.ti.com/tool/TIDA-01627

If you don't need Type-C interface, then TI MSP430 series ultra low power MCU can be one of the candidate for your design.

Regards

Shishuo

0 ENIOLA SONOWO over 5 years ago in reply to Shishuo Zhao

Prodigy 20 points

That's cool I have two laptops. One uses a USB C port and the other the standard dell's port 19v. Is there a way I can modify TIDA-01627 to produce 19v. I see that the the controller TPS65987D as two switches, can I connect a 19V to PP_HV2 so I'll get 19V at VBUS2. Our if you have a better idea I'll appreciate.

0 Shishuo Zhao over 5 years ago in reply to ENIOLA SONOWO

TI__Expert 3320 points

Hi there:

The PP_HV2 of TPS65987D is used for FRS functions per USB TypeC spec requirement. For non Type-C port, I would still suggest you use MCU solution. Thanks.

Regards

Shishuo

0 Shishuo Zhao over 5 years ago in reply to Shishuo Zhao

TI__Expert 3320 points

Hi there,

We haven’t heard back from you. We are assuming you were able to resolve your issue. If not, just post a reply below or create a new thread if the thread has locked due to time-out.

Regards,

Power management

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BQ25703A: 12v to 19v 2A laptop power bank