Description

The GL494 is a monolithic chip that integrates all the necessary functions for a pulse-width-modulation control circuit. It is designed for power supply control and includes a 5-volt regulator, two error amplifiers, adjustable oscillator, dead-time control comparator, pulse-steering flip-flop, and output-control circuitry. The GL494 offers both common-emitter and emitter-follower output capability, and supports push-pull or single-ended output operation.

Specifications and features

- Complete PWM Power Control Circuitry

- Uncommitted Outputs for 200mA Sink or Source

- Output Control Selects Single-Ended or Push-Pull Operation

- Internal Circuitry Prohibits Double Pulse at Either Output

- Internal Regulator Provides a Stable 5V Reference Supply

- Variable Dead-Time Provides Control Over Total Range

Application Scenarios

The GL494 is commonly used in power supply control applications. It can be used in various electronic devices that require precise control over the power supply output, such as inverters, switch-mode power supplies, and motor drives.

Comparison

- Integrates all necessary functions in a single chip

- Offers both common-emitter and emitter-follower output capability

- Supports push-pull or single-ended output operation

- None mentioned