TL494BDR2G

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TL494BDR2G

+BOM

IC REG CTRLR BCK/PSH-PULL 16SOIC

  • Manufactureronsemi

  • Mfr. Part #TL494BDR2G

  • Package SOIC-16

  • In Stock6315

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Specifications

Attribute Value
Package Tape & Reel (TR),Cut Tape (CT)
Series SWITCHMODE™
ProductStatus Active
OutputType Transistor Driver
Function Step-Down, Step-Up/Step-Down
OutputConfiguration Positive
Topology Buck, Push-Pull
NumberofOutputs 2
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 7V ~ 40V
Frequency-Switching 200kHz
DutyCycle(Max) 48%
SynchronousRectifier Yes
ClockSync No
ControlFeatures Dead Time Control, Frequency Control
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 16-SOIC (0.154, 3.90mm Width)

Overview

Description

The TL494BDR2G is a pulse-width modulation (PWM) controller integrated circuit commonly used for power supply and converter applications. Developed by ON Semiconductor, it is designed to offer precise control over output voltage and current, making it ideal for efficient power management in various electronic devices.
Key features of the TL494BDR2G include dual error amplifiers, a precise 5V reference regulator, an oscillator, a dead-time control comparator, and a PWM latch. These components facilitate accurate control of the switching on and off of power transistors, optimizing the regulation of power output.
The device supports both voltage-mode and current-mode control, providing flexibility in design. It has a wide supply voltage range and is capable of operating under various conditions, enhancing its versatility across different applications.
The TL494BDR2G is available in a compact surface-mount package, making it suitable for high-density circuit designs. It is commonly used in switching power supplies, DC-DC converters, and other power management solutions in consumer electronics, telecommunications, and automotive applications.

Equivalent

The TL494BDR2G is a PWM controller often used in power supply designs. Equivalent products include the KA7500C from ON Semiconductor, the SG3524 from Texas Instruments, and the UC3842 from Texas Instruments. These ICs share similar functions for PWM control in power electronics applications, though specifics such as pin configuration and electrical characteristics may vary slightly. It's important to compare datasheets for compatibility in a given application.

Features

The TL494BDR2G is a versatile PWM (Pulse Width Modulation) controller IC designed for switching power supply control applications. Key features include:
1. PWM Control: It offers advanced PWM control with a fixed frequency oscillator for efficient power supply management.

2. Voltage Reference: The IC includes a stable 5V reference voltage, crucial for maintaining consistent operation and accuracy.
3. Dual Output: It features dual output control that can be configured for single-ended or push-pull operation, providing flexibility in power supply design.
4. Error Amplifiers: The TL494BDR2G has two error amplifiers that allow for precise control and regulation of output voltage.
5. Built-in Oscillator: The built-in oscillator can be adjusted with external resistors and capacitors to tailor the switching frequency to specific needs.
6. Dead-Time Control: It includes adjustable dead-time control to improve efficiency and reduce power loss.
7. Short-Circuit Protection: The IC offers protection features such as short-circuit protection to enhance reliability and safety in power supply systems.
These features make the TL494BDR2G suitable for a variety of power supply applications, including DC-DC converters and motor speed controls.

Pinout

The TL494BDR2G is a pulse-width modulation (PWM) controller IC used in power supply and motor control applications. It comes in a standard 16-pin package. Below is a concise description of its pin functions:
1. Compensation (Pin 1): Used to stabilize the control loop by connecting external components.
2. Feedback (Pin 2): Receives feedback voltage for regulation.
3. Dead-Time Control (Pin 3): Sets the dead time between the outputs.
4. C1 (Pin 4): Timing capacitor for oscillator frequency setting.
5. R1 (Pin 5): Timing resistor for oscillator frequency setting.
6. VCC (Pin 6): Positive power supply.
7. GND (Pin 7): Ground reference.
8. C2 (Pin 8): Second timing capacitor.
9. R2 (Pin 9): Second timing resistor.
10. CT (Pin 10): Timing capacitor terminal.
11. Error Amplifier Output (Pin 11): Output of the error amplifier.
12. Error Amplifier Inverting Input (Pin 12): Inverting input for error amplifier.
13. Error Amplifier Non-Inverting Input (Pin 13): Non-inverting input for error amplifier.
14. Output Control (Pin 14): Controls operation mode (single-ended or push-pull).
15. Power Ground (Pin 15): Used for separating power and signal ground.
16. Output VCC (Pin 16): Power supply for output transistors.
This concise description covers the pin count and function of the TL494BDR2G.

Manufacturer

The TL494BDR2G is manufactured by onsemi, which is short for ON Semiconductor. onsemi is a leading provider of semiconductor solutions, offering a comprehensive portfolio of energy-efficient power and signal management, logic, discrete, and custom devices. The company serves a wide range of markets, including automotive, communications, computing, consumer electronics, industrial, medical, and military/aerospace. Known for its focus on sustainability and energy efficiency, onsemi delivers innovations that help reduce global energy use. Their products are integral to the development of modern technologies, contributing to advancements in areas such as electric vehicles, smart home devices, and industrial automation.

Application

The TL494BDR2G is a versatile PWM (Pulse Width Modulation) controller primarily used in power supply and power management applications. Key application areas include:
1. Switch-Mode Power Supplies (SMPS): Used for efficient energy conversion in DC-DC and AC-DC power supplies.
2. Battery Chargers: Manages charging processes with precision and safety.
3. Motor Control: Provides efficient control in DC motor drives.
4. Inverters: Utilized in DC-AC conversion for various applications.
5. Lighting Control: Implements dimming functions and efficient power management in LED drivers.
Its integration of essential PWM control functions makes it suitable for these and other related applications.

Package

The TL494BDR2G is a PWM controller IC housed in a SOIC-16 package. This surface-mount package is commonly used for integrated circuits and features 16 pins, providing compact and efficient mounting on circuit boards.

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