EV3312-C-00A—DUAL-CHANNEL WHITE LED DRIVER

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.

EV3312-C-00A Rev.1.0

www.MonolithicPower.com

6

3/4/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2014 MPS. All Rights Reserved.

QUICK START GUIDE

1. Connect the positive and negative terminals of the load panel (2 stings) to the LED+ and

LED1~2 pins on the EV board, respectively.

2. Connect the positive and negative terminals of the power supply (2.7V ~ 5.5V) to the VIN and

GND pins on the EV board, respectively.

3. Drive EN pin high (5V) to enable the chip if 1-Wire interface is useless. Apply 1-Wire signal

which comes from master to EN pin for digital dimming.

4. Drive PWM DIM pin with 5kHz~100kHz pulse signal for PWM input analog dimming. If PWM

input analog dimming is reserved, apply PWM pin high (>1.2V) to set up Chip.

5. Set current of every string by R4.