TL494CD datasheet(1/8 Pages) FAIRCHILD

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TL494CD Fiches technique(PDF) 1 Page - Fairchild Semiconductor

No de pièce	TL494CD

Description	SMPS Controller

Download	8 Pages

Scroll/Zoom	100%

Fabricant	FAIRCHILD [Fairchild Semiconductor]

Site Internet	http://www.fairchildsemi.com

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Rev. 5.0

Features

• Internal regulator provides a stable 5V reference supply

trimmed to 5%

• Uncommitted output TR for 200mA sink or source

current

• Output control for push-pull or single-ended operation

• Variable duty cycle by dead time control (pin 4) Complete

PWM control circuit

• On-chip oscillator with master or slave operation

• Internal circuit prohibits double pulse at either output

Description

The TL494 is used for the control circuit of the PWM

switching regulator. The TL494 consists of 5V reference

voltage circuit, two error amplifiers, flip flop, an output con-

trol circuit, a PWM comparator, a dead time comparator and

an oscillator. This device can be operated in the switching

frequency of 1 KHz to 300 KHz.

16-DIP

16-SOP

Internal Block Diagram

TL494

SMPS Controller

Fabricant	No de pièce	Fiches technique	Description
Motorola, Inc	TL494CD	197Kb / 12P	SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
Texas Instruments	TL494CD	1Mb / 37P	[Old version datasheet] Pulse-Width-Modulation Control Circuits JULY 2022
ON Semiconductor	TL494CD	143Kb / 12P	SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT April, 2004 ??Rev. 5
Texas Instruments	TL494CD	210Kb / 8P	[Old version datasheet] PULSE-WIDTH-MODULATION CONTROL CIRCUITS
Texas Instruments	TL494CD	449Kb / 17P	[Old version datasheet] PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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