EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER

EVALUATION BOARD

NOTICE:

The information in this document is subject to change without notice. Please contact MPS for current specifications.

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.

EV1527DR-02A Rev. 1.0

www.MonolithicPower.com

5

9/21/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

QUICK START GUIDE

1. Connect a Lumileds DS25 to LED terminals on the EV1527DR-02A board.

2. Preset the power supply to 3V - 4.2V.

3. Turn the power supply off.

4. Connect the power supply terminals to:

a. Positive (+): VIN

b. Negative (–): GND

5. Connect EN to VIN.

6. Turn on the power supply after making said connections.

8. Drive FLASH of Q1 with a pulsed signal (3V or above for High, 0V for Low) to switch between

two (2) LED currents.