BQ24295: does BQ24295 provide 5V on its VBUS pin in OTG(Boost) mode? or do I have to connect the load to PMID?

Yuli Starodubtsev

Part Number: BQ24295
Other Parts Discussed in Thread: BQ24297

it is not clear from BQ24295 datasheet if the Q1 turns on during boost (OTG) operation. the datasheet shows a phone/tablet connected to PMID. Does the BQ24295 provide 5V on the VBUS when OTG mode is enabled? in the other words, do I need any other connections/components to provide +5V in OTG/boost mode on the same USB connector as I use for battery charging in charge mode?

Thanks!

Yuli

over 3 years ago

0 Ning T over 3 years ago

TI__Mastermind 49801 points

Yuli,

Q1 is off in OTG mode. Only PMID has the OTG output and VBUS should be off in OTG mode. If OTG output is needed for both VBUS and PMID, please use BQ24297 instead.

Please visit https://e2e.ti.com/support/power-management/f/196/t/878463 for BQ2429X: Schematic Review and PCB Layout Design Tips and https://e2e.ti.com/support/power-management/f/196/t/875388 for BQ2419X/2429x FAQs

Thanks,

Ning.

0 Yuli Starodubtsev over 3 years ago in reply to Ning T

Prodigy 80 points

Ning,

Thank you! Appreciate the detailed answer.

Best regards,

Yuli

Power management

Power management forum

BQ24295: does BQ24295 provide 5V on its VBUS pin in OTG(Boost) mode? or do I have to connect the load to PMID?