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DM631 Datasheet Preview

DM631 Datasheet

16-CHANNEL CONSTANT CURRENT LED DRIVER

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DM631
Version
: A.003
Issue Date : 2008/05/12
File Name : SP-DM631-A.003.doc
Total Pages : 24
16-CHANNEL CONSTANT CURRENT LED DRIVER
WITH PROGRAMMABLE PWM OUTPUTS
新竹市科學園區展業一路 9 號 7 樓之 1
SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Road I, Science Based Industrial Park,
Hsin-Chu, Taiwan 300, R.O.C.
Tel886-3-5645656 Fax886-3-5645626




SiTi

DM631 Datasheet Preview

DM631 Datasheet

16-CHANNEL CONSTANT CURRENT LED DRIVER

No Preview Available !

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 Road, Hsin-Chu, Taiwan, R.O.C.
Tel886-3-5645656 Fax886-3-5645626
DM631
DM631
16-CHANNEL CONSTANT CURRENT LED DRIVER
WITH PROGRAMMABLE PWM OUTPUTS
General Description
DM631 is a 16-channel constant current sink LED driver. Each channel has adjustable 12-bits
(4096 steps) grayscale PWM control current outputs. It incorporates shift registers, data latches,
constant current circuitry with current value set by an external resistor, selectable oscillator source
for PWM function, and built-in LED open detection circuit to detect error status. It is specifically
designed for LED display or lighting applications.
Features
z Constant-current outputs: 5mA to 90mA adjustable by one external resistor
z 12-bit PWM control current outputs for each channel
z Maximum output voltage: 17V
z Maximum clock frequency: 25MHz
z Selectable internal/external PWM reference clock
z PWM free-running capability (refresh rate (~4.4KHz) with internal oscillator (~ 18 MHz))
z Build-in real-time LED open detection
z Package and pin assignment (except QFN32) compatible to pure LED drivers series
(ST2221C, DM134/5/6, DM13C)
z Power supply voltage: 3.3V to 5.5V
Applications
z Indoor/Outdoor LED Video Display
z LED Variable Message Signs (VMS) System
z LED Decorative Lighting
Package Types
z SOP24, SOP24B, SSOP24, TSSOP24E (with exposed pad), QFN32 (with exposed pad)
16-channel 12-bit PWM Constant Current LED Driver Version:A.003
未經授權而逕予重製、複製、使用或公開本文件,行為人得被追究侵權之相關民刑事責任
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.
Page 1


Part Number DM631
Description 16-CHANNEL CONSTANT CURRENT LED DRIVER
Maker SiTi
Total Page 24 Pages
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