Other Parts Discussed in Thread: UCC27712, LM2903, TLV1805
Hi,
I am generating complimentary pulses using LM2903 by comparing the modulation signal with the saw-tooth. These are fed to UCC27712 as HI and LI.
What I noticed is a capacitive loading effect on the bottom pulse which is delaying the rise time of the pulse. Further reducing the pull-up resistor of comparator is not helping in anyway.
In order to use a buffer between the comparator output and the Gate driver, what factors should I consider apart from the slew rate and increased capacitive loading?
Can someone suggest me a good part-number to use which is less susceptible for capacitive loading and can still operate at high switching frequencies like 500 kHz?
Thanks in advance,
Subrahmanyam