TPS65987DDJ: Can I connect PPHV_1 & PPHV_2 together?

Andy_Lin

Part Number: TPS65987DDJ

Hi Team,

If I used the TPS65987DDJ as power source only(5V/3A&20V/5A) , not used as power sink , in this case , it's OK if we tie PPHV_1 & PPHV_2 together , is that correct?

over 5 years ago

0 Adam Mc Gaffin over 5 years ago

TI__Mastermind 30000 points

Hello Andy,

Are you wanting to use both power paths at the same time? If so , then yes you can connect the two power paths directly to one another and implement the Power DUO functionality. However, if you are only using one power path, then I would recommend connecting PPHV2 to GND

0 Andy_Lin over 5 years ago in reply to Adam Mc Gaffin

TI__Intellectual 2670 points

Hi Adam,

Noted, thanks for feedback , further question , if I connected PPHV_1 & PPHV_2 together, but I only used one power path , it should be still ok , however we recommend to connecting PPHV2 to GND in common , is that correct?

0 Adam Mc Gaffin over 5 years ago in reply to Andy_Lin

TI__Mastermind 30000 points

Hello,

Connecting PPHV1 and PPHV2 to one another goes out side the recommended configuration for the TPS65987DDJ. I do not believe it would be an issue, but to be 100% sure, would recommend following the directions form the datasheet, which is to connect PPHV2 to GND when unused

Interface

Interface forum

TPS65987DDJ: Can I connect PPHV_1 & PPHV_2 together?