MR16 10W BOARD(#2): 1.02A @ 6.6V Max, 12V in

This document contains the information about the demo board with the device ILD4001 LED driver which is suitable for the use in an MR16 lamp.

ILD4001 is a hysteretic buck LED controller IC for industrial applications.

The demo board has two input connections to be powered up by 12 VAC from electronic transformer, and two output connections to the LED. The boards are preset to deliver 7 W or 10 W powers into the LED load.

These MR16 boards are suitable and tested to drive 2 LEDs in series and 4 LEDs (2 LEDs in series and 2 in parallel). For 4 LEDs design, it is recommended to use the LED with the same forward voltage to ensure the current matching for the LEDs in parallel.

This demo board for MR16 application is based on the ILD4001 buck converter. The objective of this demo board is to provide a constant DC current to the LED load in order to eliminate the flickering issue caused by the electronic transformers.

Since the output current to the LEDs is constant DC current, regardless of the input voltage is either 12 VAC, 12 VDC or 12 VAC from electronic transformer, the MR16 board is able to maintain the constant current deliver to the load. Therefore this solution is not only applicable to retrofit replacement market for 7 W and 10 W MR16 solutions; it is also suitable for the new installation market which generally using a constant voltage supply.