MC33066

www.DataSheet4U.com MC34066, MC33066 High Performance Resonant Mode Controllers The MC34066/MC33066 are high performance resonant mode controllers designed for off−line and dc−to−dc converter applications that utilize frequency modulated constant on−time or constant off−time control. These integrated circuits feature a variable frequency oscillator with programmable deadtime, precision retriggerable one−shot timer, temperature compensated reference, high gain wide−bandwidth error amplifier with a precision output clamp, steering flip−flop, and dual high current totem pole outputs ideally suited for driving power MOSFETs. Also included are protective features consisting of a high speed fault comparator and latch, programmable soft−start circuitry, input undervoltage lockout with selectable thresholds, and reference undervoltage lockout. These devices are available in dual−in−line and surface mount packages. Variable Frequency Oscillator with a Control Range Exceeding 1000:1 Programmable Oscillator Deadtime Allows Constant Off−Time Operation Precision Retriggerable One−Shot Timer Internally Trimmed Bandgap Reference 5.0 MHz Error Amplifier with Precision Output Clamp Dual High Current Totem Pole Outputs Selectable Undervoltage Lockout Thresholds with Hysteresis Enable Input Programmable Soft−Start Circuitry Low Startup Current for Off−Line Operation VCC http://onsemi.com MARKING DIAGRAMS 16 PDIP−16 P SUFFIX CASE 648 1 SO−16W DW SUFFIX CASE 751G 1 x A WL YY...