UC1842A Datasheet | Unitrode

Current Mode PWM Controller application INFO available UC1842A/3A/4A/5A UC2842A/3A/4A/5A UC3842A/3A/4A/5A Features - Optimized for Off-line and DC to DC Converters - Low Start Up Current (<0.5mA) - Trimmed Oscillator Discharge Current - Automatic Feed Forward pensation - Pulse-by-Pulse Current Limiting - Enhanced Load Response Characteristics DESCRIPTION The UC1842A/3A/4A/5A family of control ICs is a pin for pin patible improved version of the UC3842/3/4/5 family. Providing the necessary Features to control current mode switched mode power supplies, this family has the following improved Features . Start up current is guaranteed to be less than 0.5mA. Oscillator discharge is...