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Details for Texas Instruments
PWM Controller
Buy Directly from Texas Instruments (6640 in Stock)
$0.2200 per unit
Series Information for TL494IN - Texas Instruments


  • 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
TL494IN image
RoHS Compliant



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.


Input Voltage:
Output Voltage:
Output Current:
Supply Voltage Min:
Supply Voltage Max:
Controller IC Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
No SVHC (27-Jun-2018)
Controller Type:
Operating Temperature Range:
-40°C to +85°C
Output Type:
Supply Voltage Range:
7V to 40V
Termination Type:
Through Hole

Alternate Descriptions

RS Components
TL494I PWM controller 10kHz, DIP16
Newark Electronics
VOLTAGE MODE PWM CONTROLLER, 40V, 16-DIP; Input Voltage:-; 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; Product Range:- RoHS Compliant: Yes
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
Integrated circuits from leading manufacturers. Please read our extensive documentation which is free to download.
RS Components UK
TL494I PWM controller 10kHz, DIP16
RS Components DE
Texas Instruments TL494IN PWM-Controller 300 kHz, PDIP 16-Pin Montage-Typ : Durchsteckmontage Abmessungen : 19.3 x 6.35 x 4.57mm Länge : 19.3mm Breite : 6.35mm Arbeitsspannnung max. : 40 V Betriebstemperatur max. : +85 °C Arbeitsspannnung min. : 7 V Betriebstemperatur min. : -40 °C Ausgangsstrom : 200 mA (max.)
RS Components JP
RS Components FR
Contrôleur PWM 10kHz DIP16
RS Components CN
IC,控制器,PWM,10kH z,TL494IN
RS Components ES
TL494I PWM controller 10kHz, DIP16
RS Components NL
TL494I PWM controller 10kHz, DIP16
RS Components NO