DM11A 查看數據表（PDF） - Silicon Touch Technology Inc.

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DM11A

8-bit Constant Current LED Driver

Silicon Touch Technology Inc. 

點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

DM11A

Outputs Delay

Large in-rush currents will occur when the system activates all the outputs at once. To reduce

this effect, DM11A is designed to have a constant unit of delay (around 2.5ns) between outputs. The

delay sequence for every output goes like this: OUT0 (no delay) Æ OUT7 Æ OUT1 Æ OUT6 Æ

OUT2 Æ OUT5 Æ OUT3 Æ OUT4 (the largest delay).

Global Brightness Control

DM13A has no built-in global brightness control feature. In order to obtain a lower resolution

of global brightness control effect, two methods could be utilized. One is providing PWM signal

synchronized on latch pulse to modulate the output enable terminal (EN pin). The other is to adjust

the Rrext value or voltage drop across the external resistor. Please see the reference circuit below:

8-bit Constant Current LED Driver

Version:A.003

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