LM3444-EDSNEV: 205 ~ 340mA @ 45V Max, 115VAC

The LM3444EDSNEV evaluation board converts 85 to 135 VAC input and drives five to thirteen series connected LEDs at the currents listed in the Evaluation Board Operating Conditions section of the User Guide.

This is a two-layer board using the bottom and top layer for component placement. The board is surrounded by a larger area allowing for extra test points and connectors for ease of evaluation. The actual board size is contained inside the larger outer area and can be cut out for the smallest size possible.

The evaluation board can be modified to adjust the LED forward current and the number of series connected LEDs. The topology used for this evaluation board eliminates the need for passive power factor correction and results in high efficiency and power factor with minimal component count which results in a size that can fit in a standard A19 Edison socket.

Output current is regulated within ±15% of nominal from circuit to circuit and over line voltage variation.

The board is currently set up to drive five to thirteen series connected LEDs, but the evaluation board may be modified to accept more series LEDs. Refer to the tables in the user guide for modifying the board to accept more LEDs and/or adjust for different current levels.