TL494CN

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Details for Texas Instruments

TL494CN

PWM Controller
Buy Directly from Texas Instruments (5647 in Stock)
$0.2200 per unit
Series Information for TL494CN - Texas Instruments

Features

  • feature
    Circuit Architecture Allows Easy Synchronization
  • feature
    Complete PWM Power-Control Circuitry
  • feature
    Internal Circuitry Prohibits Double Pulse at Either Output
  • feature
    Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance
  • feature
    Output Control Selects Single-Ended or Push-Pull Operation
  • feature
    Uncommitted Outputs for 200-mA Sink or Source Current
  • feature
    Variable Dead Time Provides Control Over Total Range

Description

SWITCHED MODE CONTROLLER DIP 494
The TL494 device incorporates all the functions required in the construction of a pulse-widthmodulation (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. 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. The uncommitted output transistors provide either common-emitter or emitter-follower output capability. The TL494 device provides for push-pull or singleended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation. The TL494C device is characterized for operation from 0°C to 70°C. The TL494I device is characterized for operation from –40°C to 85°C.

Specifications

Input Voltage:
13V
Output Voltage:
40V
Output Current:
200mA
Supply Voltage Min:
7V
Supply Voltage Max:
40V
Controller IC Case Style:
DIP
No. of Pins:
16Pins
Frequency:
300kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Product Range:
TL494
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (27-Jun-2018)
IC Generic Number:
494
IC Temperature Range:
Commercial
Operating Temperature Range:
0°C to +70°C
Output Current Max:
0.2A
Output Type:
Voltage
Supply Voltage Range:
7V to 40V
Termination Type:
Through Hole

Alternate Descriptions

Avnet America

Voltage Mode PWM Controller 40V 200mA 16-Pin PDIP Tube

Avnet Europe

Voltage Mode PWM Controller 40V 200mA 16-Pin PDIP Tube

Texas Instruments

PWM Controller

Texas Instruments product

Distrelec

.85

Distrelec product

Conrad

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