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DM634 参数 Datasheet PDF下载

DM634图片预览
型号: DM634
PDF下载: 下载PDF文件 查看货源
内容描述: 16通道恒流LED驱动器,具有可编程PWM输出 [16-CHANNEL CONSTANT CURRENT LED DRIVER WITH PROGRAMMABLE PWM OUTPUTS]
分类和应用: 驱动器输出元件
文件页数/大小: 25 页 / 581 K
品牌: SITI [ SILICON TOUCH TECHNOLOGY INC. ]
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點晶科技股份有限公司  
SILICON TOUCH TECHNOLOGY INC.  
新竹市科學園區展業一9號71  
9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C.  
DM634  
Tel886-3-5645656  
Fax886-3-5645626  
Equivalent Circuit of Inputs and Outputs  
1. DCK, DAI, LAT , SOMODE/GCK terminals  
2. DAO terminals  
PCB Layout Consideration  
To connect an external resistor to REXT pin and ground can determine the maximum output  
current. If there is any disturbance occurred to REXT pin, the constant current output may be  
unstable or noisy. Since REXT (pin23), DAO (pin22), and SOMODE/GCK (pin21) are next to each  
other, the most possible interference is caused by DAO or SOMODE/GCK signal. Accordingly, it is  
recommended that adding some shielding area within the above pins in PCB layout, or laying the  
signal line of above pins on different PCB layer will prevent the noise problems effectively.  
16-channel 16-bit PWM Constant Current LED Driver  
Version : A.003  
Page 4  
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