UC3843 Current Mode PWM Controller IC - DIP-8 Package

The UC3843 is a high-performance current-mode PWM controller IC designed for off-line and DC-to-DC converter applications. It provides fast overcurrent protection and precise duty cycle control, making it ideal for switch-mode power supplies (SMPS), isolated flyback, and forward converters. Its internal oscillator, error amplifier, and reference voltage regulator simplify the overall design process for power conversion circuits.Packaged in an easy-to-use DIP-8 form factor, the UC3843 is widely used in industrial, automotive, and consumer electronic systems.Features of UC3843 PWM Controller IC:Fixed-frequency current-mode PWM controlLow startup and operating current for high efficiencyFast overcurrent response with cycle-by-cycle current limitingHigh output drive capability (up to 1A)Trimmed oscillator for precise frequency controlUndervoltage lockout with hysteresisDIP-8 through-hole package for easy prototypingIdeal for SMPS, flyback, and forward converter designsSpecifications of UC3843 IC:Model: UC3843Function: Current Mode PWM ControllerSupply Voltage Range: 8.5V to 30VOscillator Frequency: Up to 500 kHzOutput Current: 1AStartup Current: <1mAOperating Current: ~17mA (typical)Package: DIP-8 – Through-HoleOperating Temperature: -40°C to +85°CPackage Includes:1 × UC3843 Current Mode PWM Controller IC – DIP-8 Package

INR 13 · In stock