Product Summary

The TL494ID is a pulse-width-modulation control circuit. The TL494ID 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 TL494ID 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

TL494ID absolute maximum ratings: (1)VCC Supply voltage: 41 V; (2)VI Amplifier input voltage VCC: + 0.3 V; (3)VO Collector output voltage: 41 V; (4)IO Collector output current: 250 mA; (5)θJA Package thermal impedance D package: 73 ℃/W; (6)θJA Package thermal impedance DB package: 82 ℃/W; (7)θJA Package thermal impedance N package: 67 ℃/W; (8)θJA Package thermal impedance NS package: 64 ℃/W; (9)θJA Package thermal impedance PW package: 108 ℃/W; (10)Lead temperature 1,6 mm (1/16 inch)from case for 10 seconds: 260 ℃; (11)Tstg Storage temperature range: –65 to 150 ℃.

Features

TL494ID 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

TL494ID pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TL494ID
TL494ID
Texas Instruments
Voltage Mode PWM Controllers PWM Controller
Data Sheet
0-1: $0.35
1-25: $0.31
25-100: $0.24
100-250: $0.24
TL494IDE4
TL494IDE4
Texas Instruments
Voltage Mode PWM Controllers Control Circuit
Data Sheet
0-1: $0.36
1-25: $0.28
25-100: $0.25
100-250: $0.22
TL494IDG4
TL494IDG4
Texas Instruments
Voltage Mode PWM Controllers PWM Control Circuit
Data Sheet
0-1: $0.36
1-25: $0.28
25-100: $0.25
100-250: $0.22
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