Texas Instruments SG3524N Regulating PWM Controller, DIP-16, 8V to 40V, 5.4V /

The SG3524N from Texas Instruments is a complete regulating pulse-width modulator (PWM) that integrates all the functions required for building a regulated power supply, inverter, or switching regulator on a single chip. This controller is designed for use in switching regulators of either polarity, transformer-coupled DC-to-DC converters, transformerless voltage doublers, and polarity-converter applications. It employs fixed-frequency, pulse-width modulation (PWM) techniques to ensure precise and efficient power control.

The device includes complementary outputs, allowing for either single-ended or push-pull application. It incorporates an on-chip regulator, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted pass transistors, a high-gain comparator, and current-limiting and shutdown circuitry. With its uncommitted outputs, the SG3524N provides flexible configuration options for diverse power management designs.

Key features include complete PWM power-control circuitry, support for single-ended or push-pull topologies, and a typical standby current of just 8mA. The controller operates from a supply voltage range of 8V to 40V, with a switching frequency of 300kHz (typical) and a maximum duty cycle of 45%. It is housed in a 16-pin DIP package with through-hole mounting, making it suitable for a wide range of industrial and consumer power applications.

This controller is ideal for power management systems, flyback converters, and push-pull topologies, offering reliable and efficient performance. It operates over a temperature range of 0°C to 70°C, ensuring stable operation in standard environments. The SG3524N is a proven solution for engineers seeking a versatile PWM controller for their power supply designs.