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DM634 - 16-CHANNEL CONSTANT CURRENT LED DRIVER

General Description

DM634 is a 16-channel constant current sink LED driver.

(65536 steps) grayscale PWM control current outputs.

supporting user to adjust chip current easily.

Key Features

  • z Constant-current outputs: 5mA to 90mA z 16-bit linear PWM control current output per channel z 7-bit high accuracy global brightness control z Maximum output voltage: 17V z Maximum clock frequency: 25MHz z Selectable internal/external PWM reference clock z PWM free-running capability (refresh rate ~ 275 Hz with internal oscillator ~ 18 MHz) z Build-in real-time LED open/short detection z Thermal Alarm and Shotdown.
  • Alarm : Junction Temperature >110℃ Shutdown : Junction Temperature > 1.

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Datasheet Details

Part number DM634
Manufacturer SiTi
File Size 526.49 KB
Description 16-CHANNEL CONSTANT CURRENT LED DRIVER
Datasheet download datasheet DM634 Datasheet

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DM631 16-CHANNEL CONSTANT CURRENT LED DRIVER
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DM634 Version : A.002 Issue Date : 2008/05/12 File Name : SP-DM634-A.002.doc Total Pages : 27 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH PROGRAMMABLE PWM OUTPUTS 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 SILICON TOUCH TECHNOLOGY INC. 9 7 1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 DM634 DM634 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH PROGRAMMABLE PWM OUTPUTS General Description DM634 is a 16-channel constant current sink LED driver. Each channel has adjustable 16-bits (65536 steps) grayscale PWM control current outputs.