EV2488DN-00A – HIGHT VOLTAGE WHITE LED DRIVER EVALUATION BOARD

NOTICE:

The information in this document is subject to change without notice. Users should warrant and guarantee that third

party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not

assume any legal responsibility for any said applications.

EV2488DN-00A Rev. 1.1

www.MonolithicPower.com

4

12/11/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2009 MPS. All Rights Reserved.

QUICK START GUIDE

1. Connect the positive and negative terminals of the WLED (10WLED in series) load to the LED+

and LED- pins on the EV board, respectively.

2. Connect the positive and negative terminals of the power supply (40V ~ 55V) to the VIN and

GND pins on the EV board, respectively. Turn the power supply on.

4. For PWM dimming mode, apply a PWM signal with high level greater than 1.7V to the EN pin.

The typical PWM frequency should be around 200Hz. The WLED brightness can be controlled

by the PWM dimming duty cycle.