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1、DM134 DM135 DM136 Version A 012 Issue Date 2005 6 3 File Name SP DM134 135 136 A 012 doc Total Pages 20 16 Bit Constant Current LED Drivers 新竹市科學園區展業一 新竹市科學園區展業一 9 號 7 之 19 號 7 之 1 SILICON TOUCH TECHNOLOGY INC 9 7F 1 Prosperity Road I Science Based Industrial Park Hsin Chu Taiwan 300 R O C Tel 886 3
2、 5645656 Fax 886 3 5645626 DM134 DM135 DM136 點晶科技股份有限公司點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC 16 Bit Constant Current LED Drivers 1 Version A 012 DM134 DM135 DM136 16 Bit Constant Current LED Drivers General Description The DM134 DM135 DM136 are constant current drivers specifically designed for LE
3、D 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 5V CMOS Compatible Input Maximum Clock Frequency 25MHz Cascade Operation Maximum Outpu
4、t Voltage 17V Package DIP24 SOP24 SSOP24 QFN32 TSSOP24 exposedPAD DM135 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 DM134 4 0 IOUT 30 90mA 6 0 IO
5、UT 20 30mA DM135 4 0 IOUT 10 50mA 6 0 IOUT 5 10mA DM136 4 0 IOUT 3 15mA DM134 DM135 DM136 點晶科技股份有限公司點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC 16 Bit Constant Current LED Drivers 2 Version A 012 Pin Connection Top view DIP24 SOP24 SSOP24 Pin Connection Bottom view QFN32 GND SERIAL IN SERIAL OUT CLOCK O
6、UT0 OUT1 OUT2 OUT3OUT12 OUT13 OUT14 OUT15 R EXT VDD 8 7 6 5 4 3 2 1 17 18 11 1213 14 15 16 ENABLELATCH OUT4 OUT5 OUT6 OUT7 OUT11 OUT10 OUT9 OUT8 9 10 19 20 21 22 23 24 GND GND VDD REXT GND ENABLE GND OUT14 OUT13 OUT5 OUT12 OUT11 OUT9 OUT8 SERIAL IN OUT10 GND GND GND LATCH GND OUT1 OUT2 OUT3 OUT4 OUT
7、6 OUT7 VDD OUT0OUT15 CLOCKSERIAL OUT Thermal PAD 16151413121110 9 8 7 6 5 4 3 2 1 3231302928272625 24 23 22 21 20 19 18 17 DM134 DM135 DM136 點晶科技股份有限公司點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC 16 Bit Constant Current LED Drivers 3 Version A 012 Block Diagram Timing Diagram Note Latches are level sensi
8、tive not edge triggered LATCH terminal H level latches become transparent LATCH terminal L level latches hold data ENABLE terminal H level all outputs OUT0 15 are off An external resistor is connected between R EXT and GND for setting up the value of constant current SERIAL OUT changes state on the
9、rising edges of clock CLOCK SERIAL IN LATCH ENABLE OUT0 OUT1 OUT2 OUT3 OUT13 OUT14 OUT15 5V 0V 5V 0V 5V 0V 5V 0V ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF 5V 0V SERIAL OUTPrevious Data 16 Clocks CK CK CK D D DQ QQ D ST Q CLOCK I REG SERIAL IN LATCH R EXT SERIAL OUT OUT15 OUT1 OUT0 D ST ST QQ
10、D ENABLE DM134 DM135 DM136 點晶科技股份有限公司點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC 16 Bit Constant Current LED Drivers 4 Version A 012 Pin Description PIN No PIN NAME FUNCTION 1 GND Ground terminal 2 SERIAL IN Input terminal of a data shift register 3 CLOCK Input terminal of a clock for shift register 4 L
11、ATCH Input terminal of data strobe 5 20 OUT0 15 Output terminals 21 ENABLE Input terminal of output enable active low 22 SERIAL OUT Output terminal of a data shift register 23 R EXT Input terminal of an external resistor 24 VDD 5V Supply voltage terminal Equivalent Circuit of Inputs and Outputs 1 EN
12、ABLE terminal 2 LATCH terminal 3 CLOCK SERIAL IN terminal 4 SERIAL OUT terminal CLOCK SERIAL IN GND VDD GND VDD RIN up ENABLE SERIAL OUT GND VDD LATCH GND VDD RIN DM134 DM135 DM136 點晶科技股份有限公司點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC 16 Bit Constant Current LED Drivers 5 Version A 012 Maximum Ratings T
13、a 25 C Tj max 150 C CHARACTERISTIC SYMBOL RATING UNIT Supply Voltage VDD 0 7 0 V Input Voltage VIN 0 4 VDD 0 4 V 100 DM134 60 DM135 Output Current IOUT 20 DM136 mA Output Voltage VOUT 0 3 17 V Clock Frequency fCLK 25 MHz 1600 DM134 960 DM135 GND Terminal Current IGND 320 DM136 mA 2 5 DIP 24 Ta 25 C
14、1 58 SOP 24 Ta 25 C 1 39 SSOP 24 Ta 25 C Power Dissipation On 4 layer PCB PD 3 08 QFN 32 Ta 25 C W 50 0 DIP 24 79 2 SOP 24 90 2 SSOP 24 31 TSSOP 24 Exposed PAD Thermal Resistance On 4 layer PCB Rth j a 40 6 QFN 32 C W Operating Temperature Topr 40 85 C Storage Temperature Tstg 55 150 C Recommended O
15、perating Condition CHARACTERISTIC SYMBOL CONDITION MIN TYP MAX UNIT Supply Voltage VDD 4 5 5 0 5 5 V Output Voltage VOUT 17 V Operating temperature TOPR 40 85 IO OUTn 5 85 IOH SERIAL OUT 1 0 Output Current IOL SERIAL OUT 1 0 mA VIH 0 7VDD VDD 0 3 Input Voltage VIL 0 3 0 3VDD V LATCH Pulse Width tw L
16、AT 15 ns CLOCK Pulse Width tw CLK 15 ns Set up Time for DATA tsetup D 20 ns Hold Time for DATA thold D 20 ns Set up Time for LATCH tsetup L VDD 4 5 5 5 V 15 ns Clock Frequency fCLK Cascade operation 25 MHz DM134 DM135 DM136 點晶科技股份有限公司點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC 16 Bit Constant Current LED Drivers 6 Version A 012 Electrical Characteristics VDD 5 0 V Ta 25 C unless otherwise noted CHARACTERISTIC SYMBOL CONDITION MIN TYP MAX UNIT Input Voltage H Level VIH 0 7VDD VDD Input Voltage L Leve
