TL494 Datasheet PDF – PWM Controller – OnSemi

Part Number : TL494, TL494CDG

Function : Voltage mode PWM control circuit.

Pakcage : DIP 16 pin or SOP 16 Pin type

Manufacturers : ON Semiconductor

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TL494 PWM Controller

 

 

Description :

The TL494 is a fixed frequency, pulse width modulation control circuit designed primarily for SWITCHMODE power supply control.

The TL494 PWM Controller 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.

The error amplifiers exhibit a common-mode voltage range from -0.3 V to VCC -2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies.

Pinouts :

TL494 datasheet

Features

1. Complete Pulse Width Modulation Control Circuitry
2. On-Chip Oscillator with Master or Slave Operation
3. On-Chip Error Amplifiers
4. On-Chip 5.0 V Reference
5. Adjustable Deadtime Control
6. Uncommitted Output Transistors Rated to 500 mA Source or Sink
7. Output Control for Push−Pull or Single−Ended Operation
8. Undervoltage Lockout
9. NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
10. Pb−Free Packages are Available

Official Homepage : http://www.onsemi.com/PowerSolutions/product.do?id=TL494

TL494 Datasheet

TL494 pdf

Other data sheets within the file : NCV494BDR2, NCV494BDR2G, TL494BD, TL494BDG