EV3388DR-01A: 50V, 8-STRING, STEP-UP, 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.

EV3388DR-01A Rev. 1.1

www.MonolithicPower.com

6

3/17/2016

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

© 2016 MPS. All Rights Reserved.

QUICK START GUIDE

1. Connect the positive and negative terminals of the load panel (10 white LEDs in series, 8 strings

paralleled) to the LED+ and LED1~8 pins on the EV board, respectively.

2. Connect the positive and negative terminals of the power supply (4.5V ~ 25V) to the VIN and

GND pins on the EV board, respectively.

3. Drive EN pin high (2.5V < Ven < 5V) to enable the MP3388.

4. For PWM dimming, apply a PWM rectangular waveform with a minimum voltage less than 0.5V

and a maximum greater than 2.5V on PWM DIM pin. The frequency of the PWM signal is

recommended between 200Hz to 2kHz.and Duty of PWM range from 10% to 100%.