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TL494 Datasheet, PDF - E-Tech Electronics LTD

Search Partnumber : End with "TL494" - Select : 1 , Total : 4 ( 1/1 Page)

Manufacturer	Part #	Datasheet	Description
E-Tech Electronics LTD	GDTL494	251Kb/5P	V O L T A G E M O D E P W M C O N T R O L C II R C U II T

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TL494 Datasheet ,PDF

Search Partnumber : Start with "TL494" - Select : 1 , Total : 101 ( 1/6 Page)

Manufacturer	Part #	Datasheet	Description
Unisonic Technologies	TL494-D16-T	189Kb/7P	VOLTAGE MODE PWM CONTROL CIRCUIT
	TL494-D16-T	199Kb/7P	VOLTAGE MODE PWM CONTROL CIRCUIT
	TL494-S16-R	189Kb/7P	VOLTAGE MODE PWM CONTROL CIRCUIT
	TL494-S16-R	199Kb/7P	VOLTAGE MODE PWM CONTROL CIRCUIT
	TL494-S16-T	189Kb/7P	VOLTAGE MODE PWM CONTROL CIRCUIT
First Components Intern...	TL494AP	205Kb/7P	Switchmode Pulse - Width - Modulation Control Circuit
ON Semiconductor	TL494B	143Kb/12P	SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT April, 2004 ??Rev. 5
	TL494BD	143Kb/12P	SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT April, 2004 ??Rev. 5
	TL494BD	144Kb/14P	SWITCHMODE TM Pulse Width Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BD	149Kb/14P	Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BD	302Kb/14P	Switch mode Pulse Width Modulation Control Circuit August, 2021 - Rev. 7
	TL494BDG	144Kb/14P	SWITCHMODE TM Pulse Width Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BDG	149Kb/14P	Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BDG	302Kb/14P	Switch mode Pulse Width Modulation Control Circuit August, 2021 - Rev. 7
	TL494BDR2	143Kb/12P	SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT April, 2004 ??Rev. 5
	TL494BDR2	144Kb/14P	SWITCHMODE TM Pulse Width Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BDR2	149Kb/14P	Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BDR2	302Kb/14P	Switch mode Pulse Width Modulation Control Circuit August, 2021 - Rev. 7
	TL494BDR2G	144Kb/14P	SWITCHMODE TM Pulse Width Modulation Control Circuit June, 2005 ??Rev. 6
	TL494BDR2G	149Kb/14P	Modulation Control Circuit June, 2005 ??Rev. 6

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Brief Description of TL494

The TL494 is a pulse-width modulation (PWM) control circuit often used in power supply and voltage regulation applications. It is designed to provide precise control of the duty cycle and frequency of the output waveform, making it suitable for various power conversion and motor control applications. Here are some key features and specifications of the TL494 PWM controller:

Pulse-Width Modulation (PWM): The TL494 generates a PWM output signal, which allows for precise control of the on-time and off-time of a switching element (usually a power transistor). This PWM signal is commonly used in switching power supplies to regulate the output voltage.

Error Amplifiers: The TL494 includes two error amplifiers that compare a reference voltage to a feedback voltage and generate an error signal, which is used to control the duty cycle of the PWM waveform.

Oscillator: The TL494 has an internal oscillator that sets the frequency of the PWM waveform. The oscillator frequency can typically be externally adjusted using external components.

Reference Voltage: The TL494 includes an internal voltage reference (commonly 5V) that serves as a reference for the error amplifiers.

Output: The TL494 has two complementary outputs, typically labeled as OUT and DISCHARGE, which are used to drive external power transistors. The OUT output generates the PWM signal, while the DISCHARGE output can be used for discharging capacitors or controlling external circuitry.

Shutdown Feature: The TL494 often includes a shutdown pin that can be used to disable the PWM operation when pulled low. This is useful for enabling or disabling the power supply.

Feedback and Compensation: The TL494 allows for the implementation of feedback loops and compensation networks to stabilize the control system in power supply applications.

Package: The TL494 is typically available in a dual-inline package (DIP) or surface-mount packages, making it suitable for various circuit board designs.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.

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