UC3842BN ST AC-DC Controllers

The UC3842BN is a fixed frequency current-mode PWM controller for off-line and DC-DC converter applications in DIP-8 package. For selection, verify supply from 10 V to 30 V, UVLO thresholds of 16 V (on) and 10 V (off), 48% max duty cycle, 1 A totem pole output, and operating temperature from 0°C to +70°C. Features include trimmed oscillator for precise frequency control up to 500 kHz, low start-up current, automatic feed-forward compensation, and current limiting. Ideal for off-line flyback converters, AC-DC adapters, battery chargers, and switching power supplies. In stock at HL Electronics – request a quote for fast delivery.