onsemi

TL494IN

TL494IN Description

The TL494IN is a transistor driver IC designed for power management applications, specifically tailored for off-line and DC-to-DC converters. Manufactured by onsemi, this IC is part of the SWITCHMODE™ series, known for its robust performance and reliability. The TL494IN features a positive output configuration and operates within a wide supply voltage range of 7V to 40V, making it suitable for various power supply designs. It supports a switching frequency of up to 200kHz, ensuring efficient power conversion and minimal energy loss.

TL494IN Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: Up to 200kHz
• Voltage - Supply (Vcc/Vdd): 7V to 40V
• Number of Outputs: 2
• Control Features: Dead Time Control and Frequency Control
• Duty Cycle (Max): 48%
• Output Phases: 1
• Synchronous Rectifier: Yes
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Mounting Type: Through Hole
• Package: Tube
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8542.39.0001

The TL494IN offers several unique features that set it apart from similar models. Its dead time control and frequency control capabilities enhance the efficiency and stability of power conversion systems. The inclusion of a synchronous rectifier ensures minimal power loss and improved overall performance. The wide supply voltage range and high switching frequency make it versatile for a variety of applications.

TL494IN Applications

The TL494IN is ideal for applications requiring high efficiency and reliability in power conversion. It is commonly used in:

• Off-line Converters: For applications where the power supply is directly connected to the AC mains.
• DC-to-DC Converters: For converting one DC voltage level to another, essential in battery-operated devices and power supplies.
• Push-Pull Converters: For applications requiring high power density and efficiency.
• Flyback Converters: For applications needing isolated power supplies with minimal components.

The TL494IN's robust design and wide operating voltage range make it suitable for a variety of industrial and consumer electronics applications, including power supplies for computers, telecommunications equipment, and consumer electronics.

Conclusion of TL494IN

The TL494IN is a versatile and efficient transistor driver IC designed for power management applications. Its wide supply voltage range, high switching frequency, and advanced control features make it an excellent choice for a variety of power conversion systems. Despite being marked as obsolete, the TL494IN remains a reliable option for engineers and designers looking for a proven solution in power management. Its compatibility with various converter topologies and robust performance ensure that it continues to be a valuable component in the electronics industry.