TPS61196: DC-DC converter start-up issue on low duty cycle PWM input

Hi Robin,

Do you have any update for me regarding the start-up issue and the relationship with the soft start capacitor value?

We have a variation of that design that occasionally fails to power-up even with a SS cap of 4.7uF. To ensure a good start-up, we have to initially increase the PWM duty-cycle during the backlight enable cycle before dimming it to the desired value.

Thanks

Arnauld