Product Summary

The TL494IDR is a pulse-width-modulation control circuit. The TL494IDR 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 TL494IDR 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.

Parametrics

TL494IDR absolute maxing ratings: (1)VCC Supply voltage: max=41V; (2)VI Amplifier input voltage: max=VCC + 0.3 V; (3)VO Collector output voltage: max=41V; (4)IO Collector output current: max=250mA; (5)θJA Package thermal impedance: D package: max=73℃/W; DB package: max=82℃/W; N package: max=67℃/W; NS package: max=64℃/W; PW package: max=108℃/W; (6)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃; (7)Tstg Storage temperature range: min=–65, max=150℃.

Features

TL494IDR 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; (5)Variable Dead Time Provides Control Over Total Range; (6)Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance; (7)Circuit Architecture Allows Easy Synchronization.

Diagrams

TL494IDR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TL494IDR
TL494IDR

Texas Instruments

Voltage Mode PWM Controllers Control Circuit

Data Sheet

0-1: $0.46
1-25: $0.32
25-100: $0.27
100-250: $0.24
TL494IDRE4
TL494IDRE4

Texas Instruments

Voltage Mode PWM Controllers Control Circuit

Data Sheet

0-1: $0.34
1-25: $0.27
25-100: $0.23
100-250: $0.20
TL494IDRG4
TL494IDRG4

Texas Instruments

Voltage Mode PWM Controllers PWM Control Circuit

Data Sheet

0-1: $0.46
1-25: $0.32
25-100: $0.27
100-250: $0.24