onsemi

TL494BDR2

TL494BDR2 Description

The TL494BDR2 is a transistor driver IC designed for DC-DC switching controllers, part of the SWITCHMODE™ series by onsemi. This obsolete component offers a positive output configuration and operates within a wide supply voltage range of 7V to 40V. It features a switching frequency of 200kHz, making it suitable for high-speed applications. The TL494BDR2 supports synchronous rectification, enhancing efficiency and performance. It is packaged in a 16SOIC surface-mount format, ensuring ease of integration into compact designs. With a moisture sensitivity level (MSL) of 1, it is suitable for unlimited exposure to moisture, making it robust for various environmental conditions. The component is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.31.0001.

TL494BDR2 Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: 200kHz
• Voltage - Supply (Vcc/Vdd): 7V to 40V
• Synchronous Rectifier: Yes
• Control Features: Dead Time Control, Frequency Control
• Duty Cycle (Max): 48%
• Output Phases: 1
• Number of Outputs: 2
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Package: Tape & Reel (TR)

The TL494BDR2 stands out with its dual output capability and advanced control features, including dead time and frequency control, which optimize performance and efficiency. Its wide operating voltage range and high switching frequency make it versatile for various power management applications.

TL494BDR2 Applications

The TL494BDR2 is ideal for applications requiring efficient power conversion and control. Its high switching frequency and wide voltage range make it suitable for:

• DC-DC Converters: Efficiently stepping down or stepping up voltage levels.
• Switching Power Supplies: Providing stable power with minimal loss.
• Battery Chargers: Ensuring precise control over charging cycles.
• Motor Drives: Delivering consistent power to motors with minimal energy waste.

The synchronous rectification feature enhances efficiency, making it particularly beneficial in applications where power consumption and heat dissipation are critical concerns.

Conclusion of TL494BDR2

The TL494BDR2, despite being obsolete, remains a robust solution for DC-DC switching controllers. Its wide operating voltage range, high switching frequency, and advanced control features make it a versatile component for various power management applications. The inclusion of synchronous rectification and dual outputs enhances its performance and efficiency, making it a reliable choice for engineers seeking high-performance power solutions. While newer alternatives may offer enhanced features, the TL494BDR2 continues to provide value in legacy systems and specific applications where its unique attributes are advantageous.