AMC3842B - ADDtek

AMC3842B (AMC3842B - AMC3845B) CURRENT MODE PWM CONTROLLER

The AMC3842B/43B/44B/45B are fixed frequency current-mode PWM controllers specially designed for OFF-Line switching power supply and DC-to-DC converters with a minimum number of external components. These www.DataSheet4U.com devices feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, cu.

Features

Low Start-Up current (max. 200µA) Optimized for Off-Line and DC-to-DC Converters Maximum Duty Cycle U.V.L.O. with Hysteresis Operating Frequency Up to 500KHz Internal Trimmed Bandgap Reference High Current Totem Pole Output Error Amplifier With Low Output Resistance Available in 8-Pin Plastic DIP and Surface Mount 14-Pin S.O.I.C. Identical pin assignment to earlier UC384X series. PACKAGE PIN OUT COMP VREF VCC OUTPUT GND Off-line flyback or forward converters. DC-to-DC buck or boost converter. Monitor Power Supply VFB ISENSE RT/CT 8-Pin Plastic DIP (Top View) AVAILABLE OPTIONS Device AMC38.