TL494 Datasheet – PWM Control Circuit Controller – TI

Part Number : TL494

Function : PULSE-WIDTH-MODULATION CONTROL CIRCUITS

Package : SOIC, PDIP, SOP, TSSOP 16 Pin Type

Manufactures : Texas Instruments

Image
tl494-pwm-control-circuit

 

Description

The TL494 device incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.

The TL494 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits.

 

Pinout

tl494-datasheet-pinout

 

Features

1. Complete PWM Power-Control Circuitry

2. Uncommitted Outputs for 200-mA Sink or Source Current

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

4. Internal Circuitry Prohibits Double Pulse at  Either Output

 

Applications

1. Desktop PCs output and providing a sawtooth input to CT, or it can

2. Microwave Ovens drive the common circuits in synchronous multiple-rail power supplies.

3. Power Supplies: AC/DC, Isolated, With PFC, > 90 W The uncommitted output transistors provide either

4. Server PSUs common-emitter or emitter-follower output capability. The TL494 device provides for push-
pull or single-

5. Solar Micro-Inverters ended output operation, which can be selected

6. Washing Machines: Low-End and High-End through the output-control function. The architecture

7. E-Bikes

 

Official Homepage : http://www.ti.com/product/TL494

TL494 Datasheet

tl494 pdf