GENERAL DESCRIPTION
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 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM134B、DM135B Pin Connection (Top view) DIP24、SOP24、SSOP24 GND SERIAL-IN CLOCK LATCH OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VDD R-EXT SERIAL-OUT ENABLE OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 Pin Connection (Bottom view) QFN32 ENABLE OUT13 26 SERIAL_OUT OUT14 OUT12 24 23 22 25 OUT15 28 REXT GND 27 29 30 31 32 OUT1...
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