Hello guys,
I have an isolated converter YLPTEC VRB1215S-10WR3 that supplies ucc23513- 2.5 amps/15 volt Mosfet driver. The Mosfet IRfp4332pbf draws 1.2 amps and consumes around 20 watt as a peak value during turning on time . Do you think that a 10 watt isolated converter can handle that power spike ??

 

A 10mW psu can handle the output spike provided it has a capacitor on the output.

 

Another question, do you know an flyback module with (four isolated outputs) that can supply four mosfet drivers ??

 

Another question, do you know an flyback module with (four isolated outputs) that can supply four mosfet drivers ??

No, but if you're already making something that drives MOSFETs (presumably an H-bridge, although that only needs 3) presumably you could knock together a quick flyback converter with four outputs?

 

10mW must be a typo - that product is 10W
10W/15V=0.667A as shown in the datasheet.

if you are expecting occasional short pulse, capacitor can help - as long as that meets the specs of the unit.
your graph shows that power draw is negligible and pulses are quite narrow (1us) so this should not be a problem.
but driving 20 or 40W loads from 10W unit is of course out of question.