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DM11H Datasheet(PDF) 2 Page - Silicon Touch Technology Inc.

No. de pieza DM11H
Descripción Electrónicos  Maximum output voltage: 17V
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Fabricante Electrónico  SITI [Silicon Touch Technology Inc.]
Página de inicio  http://www.siti.com.tw
Logo SITI - Silicon Touch Technology Inc.

DM11H Datasheet(HTML) 2 Page - Silicon Touch Technology Inc.

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8-bit Constant Current LED Driver with Error Detection
Version:PRE.002
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.
DM11H
DM11H
8-Channel Constant Current LED Driver
With Error Detection
General Description
DM11H is a 8-channel 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 of each channel is set by a
single external resistor. Overall output currents can be adjusted by a 7-bit serial shift-in data.
Its built-in LED open/short detection, output channels short to GND detection help users to
detect LED failures, outputs short. The thermal alarm and shutdown functions provide the
over-temperature protection.
Features
8-Channel Constant-current outputs: 5mA to 90mA adjustable by one external resistor
Maximum output voltage: 17V
Maximum cascade clock frequency: 25MHz
7-bit linear global brightness control
Built-in LED open/short detection: Real-time detection or Smart detection
Built-in Outputs short to GND detection: Real-time or Smart detection
Fast detecting response: 100ns (min.)
Over temperature protection:
Alarm (junction temperature > 130°C)
Shutdown (junction temperature > 170°C)
Sleep mode (sleep current : <5uA)
In-rush current control
Schmitt trigger input
Power supply voltage: 3.0V to 5.5V
Package pin assignment compatible to conventional LED drivers (DM114B/115B,DM11C)
Applications
LED Variable Message Signs (VMS) System
Indoor/Outdoor LED Video Display
Packages
SOP16, SSOP16


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