The LM3445EVM-695 from Texas Instruments is a fully assembled and tested circuit for evaluating the LM3445 Triac dimmable LED driver. This evaluation module (EVM) demonstrates the capabilities of the LM3445 as a high-performance, off-line LED driver capable of delivering constant current to drive high brightness LEDs and ensuring compatibility with a wide range of dimmers.

The LM3445 integrates a phase-dimmable offline LED driver with a proprietary dimming control method that allows for smooth dimming with traditional TRIAC dimmers. The EVM is designed to operate with a typical AC input voltage range of 90VAC to 135VAC and can drive a string of LEDs with a maximum power of up to 7W, making it suitable for a variety of residential and commercial lighting applications.

Key features of the LM3445EVM-695 include its ability to automatically adjust for different input voltages, its high power factor, low total harmonic distortion (THD), and its thermal shutdown protection. The EVM also showcases the LM3445's proprietary constant off-time AC/DC buck (step-down) converter topology, which provides a constant current to the LEDs despite variations in input voltage and output voltage.

The EVM comes with several configurable options, allowing users to set the output current to the desired level for their specific LED load. Additionally, the board is designed for easy connection to both the AC power source and the LED load, with convenient screw terminals for quick setup and testing.

With its advanced features and user-friendly design, the LM3445EVM-695 serves as an excellent platform for engineers and designers looking to evaluate the performance of the LM3445 LED driver in real-world dimming applications. Whether for retrofit lamps, downlights, or other general lighting purposes, this evaluation module provides a robust solution for efficient and reliable LED dimming.