BQ25790: UL certification

Tamio Yokokura

Part Number: BQ25790
Other Parts Discussed in Thread: TPS25751

BQ25790 support team

BQ25790 has USB PD 3.0 OTG feature. However, BQ25790 isn't certified UL standard. Therefore, VBUS pin of BQ25790 can't directly connect to VBUS of USB-C port. In other words, the power switch like eFuse is required. Is this thought correct?

Regards,

Tamio

over 1 year ago

0 Ethan Galloway over 1 year ago

TI__Mastermind 31305 points

Hello Tamio,

We will get back to you tomorrow on this question. Thanks for being patient with this.

Best Regards,
Ethan Galloway

0 Jeff F over 1 year ago in reply to Ethan Galloway

TI__Guru**** 166996 points

Hi Tamio,

I am not aware of such UL requirement. Most customers are using a PD controller like TPS25751 to connect to USB C PD source because the charger does not have CCx pins for USB C comms. Then the charger connects to the output side of the TPS device as a sink but can be changed to be a source.

Regards,

Jeff

Power management

Power management forum

BQ25790: UL certification