TL494CJ The TL494CJ from Texas Instruments is a PWM control circuit designed for various power supply applications. It offers adjustable switching frequency and a stable 5V reference supply.
Mfr Part #:

TL494CJ

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The TL494CJ from Texas Instruments is a PWM control circuit designed for various power supply applications. It offers adjustable switching frequency and a stable 5V reference supply.
✓ Total Stock: 2,351 pcs

TL494CJ Available from 1 distributor

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2,351 pcs
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TL494CJ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Frequency
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Operating Temperature Range
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TL494CJ Description

Short technical summary and product information.

The TL494CJ is a versatile PWM (Pulse-Width Modulation) control circuit manufactured by Texas Instruments. It is designed to provide complete PWM power-control circuitry for a wide range of applications, including desktop PCs, microwave ovens, and power supplies greater than 90W.

 

Key electrical specifications include a maximum input voltage of 40V, a minimum input voltage of 7V, and a maximum switching frequency of 300kHz. The device features uncommitted outputs capable of 200mA sink or source current and provides control for single-ended or push-pull operation. It also includes internal circuitry to prevent double pulsing at either output and offers variable dead time control.

 

This PWM controller integrates an internal regulator that supplies a stable 5V reference with a 5% tolerance. The circuit architecture allows for easy synchronization. The TL494CJ is packaged in a 16-CDIP through-hole configuration with a lead spacing of 2.54mm.

 

Applications for the TL494CJ include AC/DC power supplies, isolated power supplies with PFC, and server PSUs. Its robust design and feature set make it suitable for demanding power management tasks.

TL494CJ Quick Information

Product Type: PWM Controller
Series: TL494
Canonical Name: TL494CJ PWM Control Circuit
Subcategory: DC/DC Switching Controllers

TL494CJ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TL494CJ Features

  • Complete PWM power-control circuitry.
  • 200mA sink or source current outputs.
  • Selectable single-ended or push-pull operation.
  • Variable dead time control.
  • Stable 5V reference supply.

TL494CJ Applications

  • Suitable for AC/DC power supplies.
  • Used in isolated power supplies with PFC.
  • Applicable to server PSUs.
  • Designed for desktop PCs.
  • Can be used in microwave ovens.

TL494CJ FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum input voltage for the TL494CJ?

The maximum input voltage for the TL494CJ is 40V.

What is the maximum switching frequency of the TL494CJ?

The maximum switching frequency of the TL494CJ is 300kHz.

What is the operating temperature range for the TL494CJ?

The operating temperature range for the TL494CJ is -40 C to 85 C.

What type of package is the TL494CJ in?

The TL494CJ is available in a 16-CDIP package.

What is the output current capability of the TL494CJ?

The TL494CJ has uncommitted outputs for 200mA sink or source current.

Does the TL494CJ have an internal reference voltage?

Yes, the TL494CJ has an internal regulator that provides a stable 5V reference supply with 5% tolerance.

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