SG3524 (Pulse Width Modulator Control)

Description

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 applications.Each device includes an on-chip reference, error amplifier, programmable oscillator, pulse-steering flip flop, two uncommitted output transistors, a high-gain comparator, and current-limiting and shut-down circuitry. SG3524 Specifications & Features Supply Voltage: 8V to 40V Output Voltage: 4.6 V to 5.4 V Output Current: 50 mA Number of Outputs: 2 Output Topology: Boost, Buck, Fly-back, Forward, Push-Pull Switching Frequency: 722 kHz Duty Cycle – Max: 45 % Fall Time: 100 ns Rise Time: 200 ns