DM11H

DM11H Version Issue Date File Name Total Pages : PRE.002 : 2009/10/13 : SP-DM11H-PRE.002.doc : 23 8-Channel Constant Current LED Driver with Error Detection 9 7 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 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 z 8-Channel Constant-current outputs: 5mA to 90mA adjustable by one external resistor z Maximum output voltage: 17V z Maximum cascade clock frequency: 25MHz z 7-bit linear global brightness control z Built-in LED open/short detection: Real-time detection or Smart detection z Built-in Outputs short to GND detection: Real-time or Smart detection z Fast detecting response: 100ns (min.) z Over temperature protection: Alarm (junction temperature > 130°C) Shutdown (junction temperature >...