On the datasheet for the TPS65560 there is an application circuit (Fig.1) that shows what seems to be a filtering capacitor in parallel with a diode from the cathode of the flash bulb. There is also two resistors shown. I would like to filter the voltage that the IGBT collector sees after the IGBT extinguishes the flash in the bulb and would like to know what size resistors, capacitor, and diode I should select?
What I do know is that the Diode would need to be high current tolerant and have a reverse breakdown voltage of 400 V or higher.