點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC

.

新竹市科學園區展業一路9號7樓之1

9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C.

Tel：886-3-5645656

Fax：886-3-5645626

3-CHANNEL CONSTANT CURRENT LED DRIVERS

Version:A.002

Page 1

DM413

DM413

3-CHANNEL CONSTANT CURRENT LED DRIVERS

WITH PROGRAMMABLE PWM OUTPUTS

General Description

DM413 is a PWM enabled LED driver specifically designed for LED lighting or display

applications. It incorporates shift registers, data latches, 3-channel constant current circuitry with

current value set by 3 external resistors, and built-in oscillator for PWM functioning. Data and clock

buffer outputs are designed for cascading another chip. Additionally the Output Polarity Reverse

function is designed to adapt to more high power LED applications.

Features

Maximum constant current outputs: 100mA determined by three external resistors

Maximum sinking output voltage: 17V

Maximum serial-in clock frequency: 20 MHz

Built-in buffers for cascading clock and data to next driver

PWM free-running capability (refresh rate (~ 400 Hz) with internal oscillator (~ 6.5 MHz))

Selectable modes for PWM control:

8-bits luminance data with PWM current outputs (8 bits mode)

8-bits luminance data and 6-bits global brightness data (14 bits mode)

8-bits luminance data and 5-bits individual color correction data (13 bits mode)

Output polarity reverse function

TTL/CMOS compatible input

Applications

LED Decorative Lighting

Indoor/Outdoor LED Video or Message Display

PWM Signal Generator