Hi,
I am using UC1844 in my SMPS design. I am observing the chip is getting hot around 30 deg C rise above ambient, I have 22 ohm series resistor which is common for Turn on and off, if I increase it the power dissipation is reducing however the Mosfet starts becoming Hot. the chip is rated for 1A drive, what is optimum peak current we should consider?
Is it normal for the PWM converters to Run HOT like 30 deg C rise? any method by which we can reduce its temperature.
Regards,
Chaitanya