DM11A
Version :A.003
Issue Date : 2008/03/10
File Name : SP-DM11A-A.003.doc
Total Pages : 20
8-bit Constant Current LED Driver
DM11A
8-bit Constant Current LED Driver
General Description
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DM11A is a constant-current sink driver specifically designed for LED display applications. The device incorporates shift registers, data latches, and constant current circuitry on the silicon CMOS chip. The maximum output current value of all 8 channels is adjustable by a single external resistor.
Features
z Constant-current outputs: 3mA to 60mA adjustable by one external resistor
z Maximum output voltage: 17V
z Maximum clock frequency: 25MHz
z Power supply voltage: 3.3V to 5V
z In-rush current control
z Output slew rate control (Tr/Tf, over/under shoot)
z Bit-to-bit skew : ± 3 % (max.) Chip-to-chip skew : ± 6 % (max.)
z Package and pin assignment compatible to conventional LED drivers (DM114/5/6)
Applications
z Indoor/Outdoor LED Video Display
z LED Variable Message Signs (VMS) System
Package Types
z PDIP16, SOP16, SOP16B, SSOP16
Block Diagram
DAI
DCK
LAT
EN
VDD GND
OUT 0
go的三单形式OUT 7
DAO
REXT
OUT 1
Pin Connection老年人脑梗
Pin Description
PIN NAME
GND Ground DAI Serial data input terminal.投资担保
DCK
Synchronous clock input terminal for rial data transfer.
Data is sampled at the rising edge of DCK.
LAT
Input terminal of data strobe. Data on shift register goes through at the high level of LAT (level trigger). Otherwi,古琴和古筝的区别
data is latched.
Sink constant-current outputs (open-drain).
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夸老婆的话
Equivalent Circuit of Inputs and Outputs 1. DCK, DAI, LAT, EN terminals
2. DAO terminals
