TPL5110: What happens if the Manual On is triggered in One Shot mode while the DRV is already active?

Jo Jones

Part Number: TPL5110

In One Shot mode, what happens if the Manual On (ie DELAY pin goes High) while the DRV pin is already active (ie DRV is low and the MOSFET is on)

over 3 years ago

0 Noel Fung over 3 years ago

TI__Guru* 90770 points

Hi Jo,

If the DRV is already LOW (MOSFET ON) the manual MOSFET Power ON is ignored.

0 Jo Jones over 3 years ago in reply to Noel Fung

Prodigy 30 points

Thanks, So this is true for both Timed Mode and One Shot Mode? Did I miss where in the documentation it said it applied to both modes?

0 Jo Jones over 3 years ago in reply to Jo Jones

Prodigy 30 points

Also, for one shot mode, what happens if the Manual On is asserted for longer than the timed period? In other words, it sounds like it would be ignored and then once the timer elapses, what would that Manual On (which is still on) do?

0 Noel Fung over 3 years ago in reply to Jo Jones

TI__Guru* 90770 points

Hi Jo,

If the Manual On is still ON and stay ON for another tM_DRV of time after DRV returns to HIGH, I think a new DRV pulse will be triggered.

Clock & timing

Clock & timing forum

TPL5110: What happens if the Manual On is triggered in One Shot mode while the DRV is already active?