SG2524

® SG2524 SG3524 REGULATING PULSE WIDTH MODULATORS COMPLETE PWM POWER CONTROL CIRCUITRY UNCOMMITTED OUTPUTS FOR SINGLEENDED OR PUSH PULL APPLICATIONS LOW STANDBY CURRENT 8mA TYPICAL OPERATION UP TO 300KHz 1% MAXIMUM TEMPERATURE VARIATION OF REFERENCE VOLTAGE DIP16 SO16 DESCRIPTION The SG2524, and SG3524 incorporate on a single monolithic chip all the function required for the construction of regulating power suppies inverters or switching regulators. They can also be used as the control element for high power-output applications. The SG3524 family was designed for switching regulators of either polarity, transformer-coupled dc-to-dc converters, transformerless voltage doublers and polarity converter applications employing fixed-frequency, pulse-width modulation techniques. The dual alternating outputs allows either single-ended or push-pull appliBLOCK DIAGRAM ORDERING NUMBERS: SG2524N (DIP16) SG3524N (DIP16) SG2524P (SO16) SG3524P (SO16) cations. Each device includes an on-ship reference, error amplifier, programmable oscillator, pulse-steering flip flop, two uncommitted output transistors, a high-gain comparator, and currentlimiting and shut-down circuitry. June 2000 1/9 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. SG2524 - SG3524 ABSOLUTE MAXIMUM RATINGS Symbol VIN IC IR IT Ptot Tstg Top Supply Voltage Collector Output Current Reference Output Current Current Through CT Termi...