LM3671MFX-1.875

LM3671MFX-1.875 Application Field and Working Principle

Introduction: The LM3671MFX-1.875 is a high power, single-channel DC/DC converter from Texas Instruments. It is a cost-effective, low-EMI solution for customers needing to provide regulated power from battery or power supplies. It offers up to 1.875A output current, up to 8.6V output and input voltages of 4.5V to 24V, adjustable output voltage, high efficiency, low EMI and output in-rush current limiting.

Application Field: The LM3671MFX-1.875 is suitable for a wide range of applications including automotive, industrial, lighting and communication. For example, the LM3671MFX-1.875 is ideal for powering LED lighting or automotive applications such as traction control and fuel pump motors.

Working Principle: The LM3671MFX-1.875 is a single-channel DC/DC converter, meaning that it converts a single input voltage into a single output voltage. The converter is built using a unique flyback architecture. It operates by first storing the input voltage on an inductor and then discharging it to the load through a power transistor. During operation, the inductor and capacitor form a resonant circuit which allows the converter to achieve high-efficiency operation.

The LM3671MFX-1.875 can be either synchronous or nonsynchronous, meaning that it can operate with or without an external clock. The synchronous mode is capable of higher efficiencies and allows the user to adjust the switching frequency to reduce EMI. The LM3671MFX-1.875 is protected against overcurrent, overvoltage, and overtemperature operation, making it a reliable and robust DC/DC converter.

Conclusion: The LM3671MFX-1.875 is a high power, single-channel DC/DC converter from Texas Instruments. It is ideal for a wide range of applications including automotive, industrial, lighting and communication. It is capable of high efficiency and the unique flyback architecture allows it to achieve high-efficiency operation. The LM3671MFX-1.875 is protected against overcurrent, overvoltage, and overtemperature operation, making it a reliable and robust DC/DC converter.