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PDF DM133 Data sheet ( Hoja de datos )
| Número de pieza | DM133 | |
| Descripción | 16-Bit Constant Current LED Drivers | |
| Fabricantes | SiTi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DM133 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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DM133
Version : A.024
Issue Date : 2004/07/05
File Name : SP-DM133-A.024.doc
Total Pages : 20
16-Bit Constant Current LED Drivers
With LED Open/Short Detection
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. ENABLE, DATASEL terminals
2. LATCH, SOMODE terminals
VDD
INPUT
GND
RIN(up)
VDD
INPUT
GND
RIN(down)
DM133
3. CLOCK, SERIAL-IN terminals
VDD
INPUT
GND
5. ALARM terminal
VDD
ALARM
GND
4. SERIAL-OUT terminal
VDD
SERIAL_OUT
GND
16-Bit Constant Current LED Drivers
-4-
Version：A.024
5 Page 
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DM133
3)Serial_Out Timing Selection
The SERIAL_OUT output timing can be changed by the level of SOMODE. When
SOMODE is set high, data is shifted out on synchronization to the falling edge of
CLOCK, and when SOMODE is set low, data is clocked out to SERIAL_OUT
synchronized on the rising edge of CLOCK.
The graph below depicts the timing of data serial-in and serial-out.
CLOCK
SERIAL_IN
LATCH
ENABLE
DATASEL
SOMODE
SERIAL_OUT
OUT0
OUT1
OUT2
OUT3
16 Clocks
Previous Data
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OUT13
OUT14
OUT15
ON
OFF
ON
OFF
ON
OFF
4)Thermal Alarm
The open-drain ALARM pin will go low when the IC junction temperature is
approximately above 150℃. As the thermal alarm is issued, the system should cool
down the temperature (by lowering the PWM current output, or by turning on the fan
system, …etc.).
The ALARM pin will return to high when the IC junction temperature is approximately
below 100℃ or when the power is turned on again after turned off for several seconds.
Operation in a thermal alarm situation for long time may cause permanent damage to
the IC.
16-Bit Constant Current LED Drivers
-10-
Version：A.024
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet DM133.PDF ] | |
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