UC3842 IC is a current Mode PWM Controller, meaning it can be used to provide a constant current by varying the output voltage to the load. This IC features a trimmed oscillator for precise duty cycle control, a temperature compensated reference, a high gain error amplifier, a current sensing comparator, and a high current totem pole output for driving a Power MOSFET.
Current-Mode PWM controller
Operating Voltage: 12V to 28V
Output pin current: 200 mA
Switching Frequency: 500 kHz
Duty Cycle - Max: 100 %
Operating Supply Current:25 mA
Optimized for Off-line and DC-to-DC Converters
High-Current Totem-Pole Output
Application
SMPS (Switch Mode Power Supplies) circuits
DC-DC converter circuits
Electronics power supply
Battery drain circuit
Load machines