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
2. Microwave Ovens
3. Power Supplies: AC/DC, Isolated, With PFC, > 90 W
4. Server PSUs
5. Solar Micro-Inverters
6. Washing Machines: Low-End and High-End
7. E-Bikes
8. Power Supplies: AC/DC, Isolated, No PFC, < 90 W
9. Power: Telecom/Server AC/DC Supplies: Dual Controller: Analog
10. Smoke Detectors
11. Solar Power Inverters

 

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

TL494 Datasheet

tl494 pdf

 

TL494 Datasheet – PWM Control Circuit – Motorola

Part Number : TL494, TL494CN, TL494IN, TL494CD

Function : SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT

Package : SO 16, DIP 16 Pin

Manufactures : Motorola Inc

Image

TL494 motorola TL494CN

Description

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

 

Featurers

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

 

Pinout

TL494 datasheet pinout

 

TL494 Datasheet

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

http://www.onsemi.com/pub_link/Collateral/TL494-D.PDF