Texas Instruments

LM3477AMMX  

DC DC Switching Controllers

LM3477AMMX Description

The LM3477AMMX is a transistor driver IC designed for power management applications, specifically for buck and boost converters. Manufactured by Texas Instruments, this obsolete component offers a versatile solution for a wide range of power conversion needs. The LM3477AMMX operates within a supply voltage range of 2.97V to 35V, making it suitable for various input voltage levels. It features a switching frequency of 500kHz, which allows for efficient power conversion with minimal size and weight implications. The device is packaged in an 8-pin small outline package (8VSSOP), ideal for surface-mount applications.

LM3477AMMX Features

The LM3477AMMX boasts several key features that enhance its performance and flexibility in power management applications:

• Output Type: Transistor Driver, providing robust control over external power transistors.
• Output Configuration: Positive, ensuring compatibility with a wide range of power circuits.
• Frequency - Switching: 500kHz, enabling efficient power conversion with reduced component size.
• Control Features: Enable, allowing for precise control over the power conversion process.
• Duty Cycle (Max): 93%, maximizing efficiency and minimizing power loss.
• Output Phases: 1, simplifying design and reducing complexity.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), ensuring reliability in various environmental conditions.
• REACH Status: REACH Unaffected, complying with stringent environmental regulations.
• ECCN: EAR99, indicating compliance with export control regulations.
• HTSUS: 8542.39.0001, facilitating accurate customs classification.
• Package: Tape & Reel (TR), suitable for automated assembly processes.

LM3477AMMX Applications

The LM3477AMMX is well-suited for a variety of applications where efficient power conversion and control are critical. Its wide input voltage range and high switching frequency make it ideal for:

• Buck Converters: Efficiently stepping down voltage levels in power supplies and battery-operated devices.
• Boost Converters: Increasing voltage levels in applications such as LED lighting and automotive electronics.
• Battery Management Systems: Ensuring optimal charging and discharging profiles for extended battery life.
• Industrial Power Supplies: Providing reliable power conversion in rugged industrial environments.
• Consumer Electronics: Enhancing the efficiency of power adapters and portable devices.

Conclusion of LM3477AMMX

The LM3477AMMX, despite being obsolete, remains a valuable component in the power management landscape. Its robust features, wide input voltage range, and high switching frequency make it a versatile solution for various power conversion needs. The inclusion of an enable control feature and a high maximum duty cycle further enhance its performance and efficiency. While newer alternatives may offer additional functionalities, the LM3477AMMX continues to provide reliable performance in applications where its unique features are required. For designers seeking a proven and reliable power management solution, the LM3477AMMX remains a viable option.

LM3477AMMX Documents

Download datasheets and manufacturer documentation for LM3477AMMX