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SiTi

DM117 Datasheet Preview

DM117 Datasheet

8-bit Constant Current LED Driver

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DM117
Version : A.001
Issue Date : 2007/9/18
File Name : SP-DM117-A.001.doc
Total Pages: 22
8-bit Constant Current LED Driver
with Error Detection
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

DM117 Datasheet Preview

DM117 Datasheet

8-bit Constant Current LED Driver

No Preview Available !

點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DM117
DM117
8-bit Constant Current LED Driver
with Error Detection
General Description
DM117 is a constant-current sink driver specifically designed for LED display applications.
The device incorporates shift registers, data latches, and constant current circuitry on the silicon
CMOS chip. The maximum output current value of all 8 channels is adjustable by a single external
resistor. Its built-in open/short detection and thermal alarm circuits help users detect LED failures
and overheating. There are two methods to communicate the error messages to the system. One is
through serial output data to indicate which channel has failure. The other is by means of dedicated
Alarm pin.
Features
z Constant-current outputs: 5mA to 90mA adjustable by one external resistor
z Maximum output voltage: 17V
z Maximum clock frequency: 25MHz
z Built-in real-time LED open/short detection: real-time monitor or smart detection modes
z Fast detecting response: 0.1us (min.)
z Over temperature protection:
Alarm((junction temperature > 110°C)
Shutdown (junction temperature >180°C)
z Power supply voltage: 3.3V to 5.5V
Applications
z Indoor/Outdoor LED Video Display
z LED Variable Message Signs (VMS) System
Package
z PDIP20, SSOP20
8-bit Constant Current LED Driver with Error Detection
Version:A.001
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 DM117
Description 8-bit Constant Current LED Driver
Maker SiTi
Total Page 22 Pages
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