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DM11H Datasheet(PDF) 2 Page - Silicon Touch Technology Inc. |
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DM11H Datasheet(HTML) 2 Page - Silicon Touch Technology Inc. |
2 / 23 page 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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