DM135B

DM134B、DM135B www.DataSheet4U.com Version : A.001 Issue Date : 2004/4/29 File Name : SP-DM134B,135B-A.001.doc Total Pages: 18 16-Bit Constant Current LED Drivers with 3.3v ~ 5v Supply Voltage 9 7 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Fax：886-3-5645626 Tel：886-3-5645656 SILICON TOUCH TECHNOLOGY INC. www.DataSheet4U.com DM134B、DM135B DM134B、DM135B 16-Bit Constant Current LED Drivers with 3.3v ~ 5v Supply Voltage General Description 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. Features 3.3V~5V CMOS Compatible Input Maximum Clock Frequency: 25MHz (Cascade Operation) Maximum Output Voltage: 17V Package: DIP24, SOP24, SSOP24, QFN32 Package and Pin Layout: Pin layout and functionality are similar to those of the ST2221C. (Each characteristic value is different.) Constant Current Matching: (Ta = 25°C、VDD = 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- Version：A.001 Preliminary SILICON TOUCH TECHNOLOGY INC. www.DataSheet4U.com DM134B、DM135B Pin Connection (Top view) DIP24、SOP24、SSOP24 GND SERIAL-IN C...