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See Technical Specifications

TL494CN

With a switching frequency of 40kHz and a 200mA PWM output

Manufacturer:

Texas Instruments
Mfr.Part #:

TL494CN
Datasheet:

TL494CN Datasheet (PDF)
Topology:

Push pull
Control mode:

Voltage
Duty cycle (max) (%):

45
Switching frequency (max) (kHz):

300
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TL494CN General Description

The TL494CN is a pulse-width modulation (PWM) controller IC (integrated circuit) commonly used in power supply and motor control applications. It operates with a voltage range from 7V to 40V and provides two error amplifiers for precise regulation. The device features a built-in oscillator with adjustable frequency and duty cycle, allowing flexibility in design. With its voltage reference, it offers stable performance across varying load conditions. The TL494CN includes a soft-start function to prevent excessive current during startup, protecting components and enhancing reliability. It also incorporates a dead-time control to prevent shoot-through in complementary power switches. Additionally, it offers overcurrent protection to safeguard against faults. With its versatile features and robust design, the TL494CN is widely utilized in various power electronics applications for efficient and reliable control of power delivery

Key Features

Voltage mode PWM control

Wide input voltage range

Adjustable dead-time control

High-precision oscillator

Built-in soft-start function

Error amplifier with low offset voltage

Pulse-by-pulse current limiting

Small form factor

Overload and short circuit protection circuits

0. Suitable for switch-mode power supplies and inverters

Application

The TL494CN is commonly used in switch-mode power supplies (SMPS), voltage regulators, and pulse-width modulation (PWM) controllers for applications like DC-DC converters, inverters, battery chargers, and motor control circuits

It's valued for its versatility, stability, and ability to regulate power efficiently across various electronic systems

Specifications

Topology	Push pull	Control mode	Voltage
Duty cycle (max) (%)	45	Switching frequency (max) (kHz)	300
Features	Adjustable switching frequency, Dead time control, Error amplifier, Multi-topology	Operating temperature range (°C)	-40 to 85, 0 to 70
Rating	Catalog	Gate drive (typ) (A)	0.2
Vin (max) (V)	40