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DM412 数据表(PDF) 2 Page - Silicon Touch Technology Inc.

部件名 DM412
功能描述  3-CHANNEL CONSTANT CURRENT LED DRIVERS WITH LED OPEN DETECTION
Download  35 Pages
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制造商  SITI [Silicon Touch Technology Inc.]
网页  http://www.siti.com.tw
标志 SITI - Silicon Touch Technology Inc.

DM412 数据表(HTML) 2 Page - Silicon Touch Technology Inc.

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點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC
.
3-CHANNEL CONSTANT CURRENT LED DRIVERS
Version:A.003
Page 1
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.
DM412
DM412
3-CHANNEL CONSTANT CURRENT LED DRIVERS
WITH LED OPEN DETECTION
General Description
DM412 is a PWM enabled LED driver specifically designed for LED video display or lighting
applications. Each channel has linear adjustable 16-bits (65536 steps) grayscale PWM control
current outputs. 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, clock,
and latch buffer outputs are designed for cascading another chip. Its built-in open detection function
help users locate LED failures without additional circuits. The output polarity reverse function is
designed for more high power LED applications.
Features
Maximum constant current outputs: 200mA determined by three external resistors
Maximum sinking output voltage: 17V
Maximum serial-in clock frequency: 20 MHz
16-bit linear PWM control current outputs
Built-in buffers for cascading clock, data, and strobe to next driver
PWM free-running capability (refresh rate (~ 267 Hz) with internal oscillator (~ 17.5 MHz))
Selectable auto/manual strobe (Patent pending)
LED open detection
Output polarity reverse function
Power supply voltage: 4V ~ 5.5V
Applications
LED Decorative Lighting
Indoor/Outdoor LED Video or Message Display
PWM Signal Generator
Package
SSOP16, SOP16 (with exposed pad), TSSOP16 (with exposed pad), QFN16 (with exposed pad)


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