(2 PCS) CM3842CP CHAMPION CURRENT MODE PWM CONTROLLER 8 PIN DIP

THIS LISTING IS FOR (2 PCS) OF CM3842CP BY CHAMPION MICROELECTRONIC CORP.CURRENT MODE PWM CONTROLLER 8 PIN DIPGENERAL DESCRIPTION The CM3842/43 are fixed frequency current-mode PWMcontrollers specially designed for OFF-Line switchingpower supply and DC-to-DC converters with a minimumnumber of external components. These devices featurea trimmed oscillator for precise duty cycle control, atemperature compensated reference, high gain erroramplifier, current sensing comparator, and high currenttotem pole output which is suitable for drivingMOSFETs.The under voltage lock-out (U.V.L.O.) is designed tooperated with 200μA typ. start-up current, allowing anefficient bootstrap supply voltage design. The U.V.L.O.thresholds for the CM3842 are 16V (on) and 10V (off)which are ideal for off-line applications. Thecorresponding typical threshold for the CM3843 are8.4V (on) and 7.6V (off). The CM3842/43 can operatedwithin 100% duty cycle.FEATURES:Low Start-Up current ( typ. 200μA)Optimized for Off-Line