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Número de pieza | DM13A | |
Descripción | 16-bit Constant Current LED Driver | |
Fabricantes | SiTi | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de DM13A (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
No Preview Available ! DM13A
Version
: A.003
Issue Date : 2007/12/12
File Name : SP-DM13A-A.003.doc
Total Pages : 20
16-bit Constant Current LED Driver
新竹市科學園區展業一路 9 號 7 樓之 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
1 page 點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Equivalent Circuit of Inputs and Outputs
1. DCK, DAI, LAT, EN terminals
DM13A
2. DAO terminals
16-bit Constant Current LED Driver
Version:A.003
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.
Page 4
5 Page 點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DM13A
Constant-Current Output
Constant-current value of each output channel is set by an external resistor connected between
the REXT pin and GND. Varying the resistor value can adjust the current scale ranging from 3mA to
60mA. The reference voltage of REXT terminal (Vrext) is approximately 1.2V. The output current
value is calculated roughly by the following equation:
Iout(mA)
M
3 5 10 20 30 40
55 54.1 50 46.6 45 43.3
Output Current as a Function of Rrext value
50
41.6
60
55
50
45
40
35
Iout (mA) ~
Vrext (V)
Rrext (KΩ)
×
M
30
25
20
15
10
5
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Rext (kΩ)
Output Current as a Function of Output Voltage
60
55
50
45
40
35
30
25
20
15
10
5
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
Vout(V)
In order to obtain a good performance of constant-current output, a suitable output voltage is
necessary. Users can get related information about the minimum output voltage above.
16-bit Constant Current LED Driver
Version:A.003
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.
Page 10
11 Page |
Páginas | Total 20 Páginas | |
PDF Descargar | [ Datasheet DM13A.PDF ] |
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