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DM134B Ver la hoja de datos (PDF) - Silicon Touch Technology Inc.

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DM134B Datasheet PDF : 20 Pages
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點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DM134BDM135B
DM134BDM135B
16-Bit Constant Current LED Drivers with
3.3v ~ 5v Supply Voltage
General Description
The DM134BDM135B are constant current drivers specifically designed for LED display
applications. The value of constant current can be varied using an external resistor. The devices
include a 16-bit shift register, latches, and constant current drivers on a single Silicon CMOS
chip.
Features
z 3.3V~5V CMOS Compatible Input
z Maximum Clock Frequency: 25MHz (Cascade Operation)
z Maximum Output Voltage: 17V
z Package:
DIP24, SOP24, SSOP24, QFN32
z Package and Pin Layout: Pin layout and functionality are similar to those of the ST2221C.
(Each characteristic value is different.)
z Constant Current Matching: (Ta = 25°CVDD = 5.0V)
Chip-to-Chip: ± 10.0%
Bit-to-Bit:
DM134B:± 4.0% @ IOUT = 30 ~ 90mA
± 6.0% @ IOUT = 20 ~ 30mA
DM135B:± 4.0% @ IOUT = 20 ~ 60mA
± 6.0% @ IOUT = 5 ~ 20mA
16-Bit Constant Current LED Drivers
-1-
VersionA.006

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