Part Number: UC3843, UC3843N, UC3843D1, UC3843D
Description
SMPS Controller
Package: 8-DIP, 8-SOP, 14-SOP Type
Manufacturer: Fairchild Semiconductor
Pinout
Description
This is SMPS Controller.
The UC3842 / UC3843 / UC3844 / UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totempole output for driving a Power MOSFET.
Features
1. Low Start up Current
2. Maximum Duty Clamp
3. UVLO With Hysteresis
4. Operating Frequency up to 500KHz
UC3843 Datasheet
