DM135B Siti, DM135B Datasheet - Page 2

• Manufacturer Part Number: DM135B
• Description: (DM134B / DM135B) 16 BIT CONSTANT CURRENT LED DRIVERS
• Manufacturer: Siti

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DM134B、 、 、 、 DM135B
General Description
Features
16-Bit Constant Current LED Drivers
The DM134B、DM135B 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.
3.3V~5V CMOS Compatible Input
Maximum Clock Frequency: 25MHz (Cascade Operation)
Maximum Output Voltage:
Package:
Package and Pin Layout:
Constant Current Matching: (Ta = 25 C、V
點晶科技股份有限公司
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
點晶科技股份有限公司
點晶科技股份有限公司
16-Bit Constant Current LED Drivers with
3.3v ~ 5v Supply Voltage
DM134B: 4.0% @ I
17V
DIP24, SOP24, SSOP24, QFN32
Pin layout and functionality are similar to those of the ST2221C.
(Each characteristic value is different.)
Chip-to-Chip:
Bit-to-Bit:
DM135B: 4.0% @ I
Preliminary
6.0% @ I
6.0% @ I
DD
10.0%
= 5.0V)
-1-
OUT
OUT
OUT
OUT
= 30 ~ 90mA
= 20 ~ 30mA
= 5 ~ 20mA
= 20 ~ 60mA
DM134B 、 、 、 、 DM135B
Version ： ： ： ： A.001