DM631B

DM631B SITI | Alldatasheet

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新竹市科學園區展業一路 9 號 7 樓之 1 SILICON TOUCH TECHNOLOGY INC . 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 DM631B Version : PRE.001 Issue Date : 2008/09/12 File Name : SP-DM631B-PRE.001.doc Total Pages : 31 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH 12-bit PROGRAMMABLE PWM OUTPUTS

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 1 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B DM631B 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH 12-bit PROGRAMMABLE PWM OUTPUTS General Description DM631B is a 16-channel constant current sink LED driver. Each channel has independent 12-bits (4096 steps) grayscale PW M control current outputs. It inco rporates shift re gisters, data latches, constant current circuitry with current va lue set by an external resistor, and built-in LED open detection circuit to detect er ror status. It combines the select ions with rising / falling edge serial out, auto-reload/one-shot PWM output, inte rnal/external grayscale clock source. It is specifically designed for LED display or lighting applications.

Features

z Constant-current outputs: 5mA to 60mA adjustable by one external resistor z 12-bit linear PWM control current outputs for each channel z Maximum output voltage: 17V z Maximum clock frequency: 25MHz z Auto-Reload / One-Shot Mode selection. z Serial out clock edge selection – Rising / Falling edge selection z Internal / External PWM clock mode selection z Built-in real-time open detection z Package and pin assignment compatible to conventional LED drivers (DM134/5/6, DM13C) z Power supply voltage: 3.3V to 5V z Schmitt Trigger input z Output channel delay

Applications

z Indoor/Outdoor LED Video Display z LED Variable Message Signs (VMS) System z LED Decorative Lighting Package Types z DIP24B, SOP24B, SSOP24, TSSOP24E (with exposed pad)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 2 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Block Diagram DAI DCK LAT DAO GCK REXT OUT 0 OUT 15 12-bit Counter Internal Oscillator VCC GND 12-bit Shift Register (1) 12-bit Shift Register (15) 12-bit Latch Register (0) 12-bit Latch Register (1) 12-bit Latch Register (15) 12-bit Shift Register (0) 12-bit PWM Generator (0) 12-bit PWM Generator (1) 12-bit PWM Generator (15) OUT 1 LED Open Detector (0) LED Open Detector (1) LED Open Detector (15) Constant Current Driver (0) Constant Current Driver (1) Constant Current Driver (15)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 3 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Pin Connection OUT0 OUT1 OUT2 OUT3 VCC REXT DAO GCK GND DCK LAT OUT 15 OUT 14 OUT 13 OUT 12 DAI SOP24 TSSOP24E ( top view ) OUT4 OUT5 OUT6 OUT7 OUT 11 OUT 10 OUT 9 OUT 8 SOP24B DIP24B Pin Description PIN No. PIN NAME FUNCTION SOP24B/SSOP24/TSSOP24E: 1 TSSOP24E: exposed pad GND Ground terminal. SOP24B/SSOP24/TSSOP24E: 2 DAI Serial data input terminal. SOP24B/SSOP24/TSSOP24E: 3 DCK Synchronous clock input terminal for serial data transfer. Data is sampled at the rising edge of DCK. SOP24B/SSOP24/TSSOP24E: 4 LAT Input terminal of data strobe: ‘H’ means data on shift register goes through latc h (level trigger), all outputs off and counter rese t immediately ‘L’ means data is latched. SOP24B/SSOP24/TSSOP24E: 5~20 OUT0~15 Sink constant-current outputs (open-drain). SOP24B/SSOP24/TSSOP24E: 21 GCK Gray Scale Clock (GCK) : Input terminal for PWM operation. SOP24B/SSOP24/TSSOP24E: 22 DAO Serial data output terminal. Data shift out at the rising edge of DCK in REM ∗1 (default), or data shift out at the falling edge of DCK in FEM∗2. SOP24B/SSOP24/TSSOP24E: 23 REXT External resistors connected between REXT and GND for output current value setting. SOP24B/SSOP24/TSSOP24E: 24 VCC Supply voltage terminal. ∗1 Rising Edge Mode ∗2 Falling Edge Mode

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 4 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Equivalent Circuit of Inputs and Outputs 1. DCK, DAI, LAT , GCK terminals 2. DAO terminals PCB Layout Consideration To connect an external resistor to REXT pin and ground can determine the maximum output current. If there is any disturbance occurred to REXT pin, the constant current output may be unstable or has noise happened. Since REXT (pi n23), DAO (pin22), and GCK (pin21) are next to each other, the most possible interference is ca used by DAO or GCK signal. Accordingly, it is recommended that adding some shielding area with in the above pins in PCB layout, or laying the signal line of above pins on different PCB layer will prevent the noise problems effectively.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 5 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Maximum Ratings (Ta=25°C, Tj(max) = 150°C) CHARACTERISTIC SYMBOL RATING UNIT Supply Voltage VCC -0.3 ~ 7.0 V Input Voltage VIN -0.3 ~ VCC+0.3 V Output Current IOUT 70 mA Output Voltage VOUT -0.3 ~ 17 V Input Clock Frequency FDCK 25 MHz GND Terminal Current IGND 1120 mA 4.17 ( TSSOP24E exposed pad) 2.19 ( SOP24B) 1.87 (DIP24B) Power Dissipation (4 layer PCB, at Ta=25℃) PD 1.79 ( SSOP24 ) W 30 ( TSSOP24E exposed pad) 57 (SOP24B) 67 (DIP24B) Thermal Resistance (4 layer PCB, at Ta=25℃) Rth(j-a) 70 (SSOP24 ) °C/W Operating Temperature Top -40 ~ 85 °C Storage Temperature Tstg -55 ~ 150 °C Recommended Operating Condition CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT Supply Voltage VCC ⎯ 3.3 5.0 5.5 V Output Voltage VOUT Driver On *1 1.0 ⎯ 0.5VCC Output Voltage VOUT Driver Off *2 ⎯ ⎯ 17 V IO OUTn 5 ⎯ 60 IOH VOH = VCC – 0.4 V ⎯ ⎯ +1.5 Output Current IOL VOL = 0.2 V ⎯ ⎯ -1.5 mA Input Clock Frequency FDCK Single Chip Operation ⎯ ⎯ 25 Input PWM Frequency FGCK 3.3V~5.5V ⎯ ⎯ 25 MHz LAT Pulse Width tw LAT 15 ⎯ ⎯ DCK Pulse Width tw DCK 15 ⎯ ⎯ Set-up Time for DAI tsetup(D) 10 ⎯ ⎯ Hold Time for DAI thold(D) 10 ⎯ ⎯ Set-up Time for LAT tsetup(L) 10 ⎯ ⎯ Hold Time for LAT thold(L) VCC = 5.0V 360*3 ⎯ ⎯ ns *1 Notice that the power dissipation is limited to its package and ambient temperature. *2 The driver output voltage including any overshoot stress has to be compliant with the maximum voltage (17V). *3 Due to open detection operation and output channel delay consideration.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 6 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Electrical Characteristics (VCC = 5.0 V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT Output Leakage Current IOL VOH = 17 V ⎯ ⎯ ±1.0 uA VOL IOL = 1.25 mA ⎯ ⎯ 0.4 Output Voltage (S-OUT) VOH IOH= 1.4 mA VCC-0.2 ⎯ ⎯ V Output Current Skew (Channel-to-Channel)*1 IOL1 ⎯ ⎯ ±3 % Output Current Skew (Chip-to-Chip)*2 IOL2 VOUT = 1.0 V Rrext = 2.2 KΩ TBD TBD TBD mA Output Voltage Regulation % / VOUT Rrext = 2.2 KΩ VOUT = 1 V ~ 3 V ⎯ ±0.1 ±0.5 Supply Voltage Regulation % / VCC Rrext = 2.2 K Ω ⎯ ±1 ±4 % / V LED Open Detection Threshold V(od) all outputs turn on ⎯ 0.2 ⎯ V IDD(off) power on all pins are open unless VCC and GND (internal GCK mode ⎯ 5.5 ⎯ IDD(off) power on all pins are open unless VCC and GND (external GCK mode) ⎯ 5.0 ⎯ IDD(on) input signal is static Rrext = 12.4 KΩ all outputs turn off ⎯ 6.0 ⎯ IDD(on) input signal is static Rrext = 2.2 KΩ all outputs turn off ⎯ 8.5 ⎯ Supply Current*3 IDD(on) input signal is static Rrext = 570 Ω all outputs turn off ⎯ 17.5 ⎯ mA *1 Channel-to-channel skew is defined as the ratio between (any Iout – average Iout) and average Iout, where average Iout = (Imax + Imin) / 2. *2 Chip-to-Chip skew is defined as the range into which any output current of any IC falls. *3 IO excluded.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 7 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Electrical Characteristics (VCC = 3.3 V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT Output Leakage Current IOL VOH = 17 V -1.0 ⎯ +1.0 uA VOL IOL = 1.25 mA ⎯ ⎯ 0.4 Output Voltage (S-OUT) VOH IOH= 1.4 mA VCC-0.2 ⎯ ⎯ V Output Current Skew (Channel-to-Channel)*1 IOL1 ⎯ ⎯ ±3 % Output Current Skew (Chip-to-Chip)*2 IOL2 VOUT = 1.0 V Rrext = 2.2 KΩ TBD TBD TBD mA Output Voltage Regulation % / VOUT Rrext = 2.2 KΩ VOUT = 1 V ~ 3 V ⎯ ±0.1 ±0.5 Supply Voltage Regulation % / VCC Rrext = 2.2 K Ω ⎯ ±1 ±4 % / V LED Open Detection Threshold V(od) all outputs turn on ⎯ 0.2 ⎯ V IDD(off) power on all pins are open unless VCC and GND (internal GCK mode) ⎯ 4.5 ⎯ IDD(off) power on all pins are open unless VCC and GND (external GCK mode) ⎯ 4.2 ⎯ IDD(on) input signal is static Rrext = 12.4 KΩ all outputs turn off ⎯ 5.5 ⎯ IDD(on) input signal is static Rrext = 2.2 KΩ all outputs turn off ⎯ 7.0 ⎯ Supply Current*3 IDD(on) input signal is static Rrext = 570 Ω all outputs turn off ⎯ 15.0 ⎯ mA *1 Channel-to-channel skew is defined as the ratio between (any Iout – average Iout) and average Iout, where average Iout = (Imax + Imin) / 2. *2 Chip-to-Chip skew is defined as the range into which any output current of any IC falls. *3 IO excluded.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 8 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Switching Characteristics (VCC = 5.0V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT GCK-to-OUT ⎯ 45.7 ⎯ DCK(rising edge)-to-DAO ⎯ 36 ⎯ Propagation Delay (‘L’ to ‘H’) DCK(falling edge)-to-DAO tpLH ⎯ 16 ⎯ GCK-to-OUT ⎯ 23.8 ⎯ DCK(rising edge)-to-DAO ⎯ 28 ⎯ Propagation Delay (‘H’ to ‘L’) DCK(falling edge)-to-DAO tpHL ⎯ 14 ⎯ Output Current Rise Time tor ⎯ 18 ⎯ Output Current Fall Time tof ⎯ 7.0 ⎯ Output Delay Time Unit Td VIH = VCC VIL = GND Rrext = 2.2 KΩ VL = 5.0 V CL = 13 pF ⎯ 20 ⎯ ns Switching Characteristics (VCC = 3.3V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT GCK-to-OUT ⎯ 48.8 ⎯ DCK(rising edge)-to-DAO ⎯ 23 ⎯ 0Propagation Delay (‘L’ to ‘H’) DCK(falling edge)-to-DAO tpLH ⎯ 23 ⎯ GCK-to-OUT ⎯ 29.6 ⎯ DCK(rising edge)-to-DAO ⎯ 21 ⎯ Propagation Delay (‘H’ to ‘L’) DCK(falling edge)-to-DAO tpHL ⎯ 20 ⎯ Output Current Rise Time tor ⎯ 20 ⎯ Output Current Fall Time tof ⎯ 8.3 ⎯ Output Delay Time Unit Td VIH = VCC VIL = GND Rrext = 2.2 KΩ VL = 3.3 V CL = 13 pF ⎯ 30 ⎯ ns OUTn DAO REXT VCC CL VL Switching Characteristics Test Circuit A Rrext DAI LAT DCK GCK CLCLCLCL GND

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 9 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Constant-Current Output Constant-current value (Iout *1) of each output channel is set by an external resistor connected between the REXT pin and GND. The current scale ra nging can be adjusted from 5mA to 60mA by varying the resistor value. The reference voltage of REXT terminal (Vrext) is approximately 1.23V . The output current value is calculated by the following equation: Iout(mA) 5 10 20 30 40 50 60 Output current as a function of Rext value 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 Rext Iout(mA) Output Current as a function of Output Voltage Vout(V) Iout(A) In order to obtain a good performance of consta nt-current output, a suitable output voltage is necessary. Users can get related information about the minimum output voltage above. *1 Iout is typical current value setting under 100% PWM duty cycle . Iout (mA) ~ Vrext (V) Rrext (KΩ) × M

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 10 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Serial Data Interface The serial-in data (DAI) data will be clocked into 16 × 12 bit shift regist ers synchronized on the rising edge of the clock (DCK). The data will be transferred into the 16 × 12 bit latch registers when the strobe signal ( LAT ) is kept at high level (level trigger) ; Otherwise, the data will be held. The latch pulse should be sent after the falling e dge of the last clock w ithin one frame data. The serial-out data (DAO) will be shifted out on synchronization of the clock (DCK). Input Data clock-in sequence The sequence of the grayscale PWM luminous data of a driver showed as following diagram. The input data sequence of input data is from the MSB of OUT15 (D15 [11:0]) to the LSB of OUT0 (D0 [11:0]) by time passing. D15 [10] D 15[9] D 15[8]D15 [11] D 15 [7] D 15 [6] D 15[5] D 15[2] D 15[1] D 15[0]D15[4] D 15[3] LSB OUT 15 MSB shift in first OUT 14 OUT 0 Active width per frame(%) = 4096 D14 [10] D 14 [9] D 14[8]D14 [11] D 14[7] D 14 [6] D 14[5] D 14[2] D 14[1] D 14 [0]D14[4] D 14[3] LSBMSB LSBMSB Serial-out Data clock-out sequence The data serial out from DAO include latched grayscale data and the LSB of each output data covered by detection message (ERR) after LAT pulse be active. The se rial out sequence of the data is from the MSB of OUT15 (D15 [11:0]) to the LSB of OUT0 (D0 [11:0]) by time passing. D15 [10] D 15[9] D 15[8]D15 [11] D 15 [7] D 15 [6] D 15[5] D 15[2] D 15[1] ERR [15]D15[4] D 15[3] LSB OUT 15 MSB shift out first OUT 14 OUT 0 D14 [10] D 14 [9] D 14[8]D14 [11] D 14[7] D 14 [6] D 14[5] D 14[2] D 14[1] ERR[14 ]D14[4] D 14[3] LSBMSB LSBMSB *ERR[11], ERR[10],… ,ERR[0] are Error Message of LED Open Detection. ｀1＇is normal, and ｀0＇is abnormal.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 11 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Rising/Falling Edge Mode selection The luminous data serial out from DAO by data clock (DCK) as following waveform. In rising edge mode (REM), the data serial out by the rising edge of DCK. D[191]DAO DCK LAT 191 E[ 1 ] D[190] D[189] 91 192 ERR[0] 192 Rising Edge Mode (REM) DAO serial out by DCK rising edge. In falling edge mode (FEM), the data serial out by the falling edge of DCK. DAO DCK LAT 19112 192192 Falling Edge Mode (FEM) : DAO serial out by DCK falling edge. *D[191], D[190],…D[0], E[191] are clock-in data in Shift data register of driver

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 12 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B The default mode is the Rising-Edge Mode (REM *1) after power-on. Users could do mode select between REM and FEM*2 by following timing sequence. The option 1 shows two rising edge of latch pulses ( LAT ) when the data-input clock (DCK) kept at high level then sending one rising edge of DCK pulses when LAT kept at high level. Then we can receive serial-out data from the data-output signal (DAO) at falling edge of DCK af ter the falling edge of LAT . The option 2 shows three rising edge of LAT when DCK kept at high level th en sending two rising edge of DCK, while LAT kept high level at the same time. After the falling edge of LAT , we receive serial-out data from DAO at ri sing edge of DCK (REM). Notice th at when internal RESET at low level, all the shift registers in DM631B will be cleared (Kept at Low level). DCK LAT Option 2 : Signals Combination to set up Rising-Edge Mode (REM) RESET (internal) t 12 3 GCK DCK LAT Option 1 : Signals Combination to set up Falling-Edge Mode (FEM) RESET (internal) t GCK XXX X Auto-Reload/One-Shot Mode selection The Auto-Reload mode (ARM) in DM631B m eans outputs can repeat the grayscale PWM cycle over and over. It can decrease the data amount greatly compare to non-PWM function driver operated in grayscale PWM application. LAT GC K OUT0 ( internal or external ) 4096 GCK Counter reset (current) on of f high low Auto-Reload Mode (ARM). Frame Data B

4096 GCK

The One-Shot Mode in DM631B means each output shows one grayscale PWM cycle following one latch pulse. The grayscale PWM cycle starts with the falling edge of LAT signal. The first GCK pulse after LAT increases the grayscale counter by one and switches on all outputs with grayscale value. It makes driver synchronous control easily. *1 REM switch to FEM timing diagram, please refer to page 16. *2 FEM switch to REM timing diagram, please refer to page 17.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 13 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B on of f high low One-Shot Mode (OSM) LAT GCK OUT0 ( internal or external ) (current) Counter reset The default mode is the Auto-Reload Mode (ARM *1) after power-on. Users could do mode select between ARM and One-Shot Mode (OSM *2 ) by following timing sequence. The gray scale clock signal (GCK) should keep at low during this mode selection process. The option 1 shows four rising edges of latch pulse ( LAT ) when the data-input clock (DCK ) kept at high level then three rising edges of DCK when LAT kept at high level. Then DM631B starts OSM after the falling edge of LAT . The option 2 shows five rising edges of LAT when DCK kept at high level then sending four rising edges of DCK signal, while LAT signal kept high level . After falling edge of LAT , DM631B switch to ARM . Notice that when in ternal RESET at low level, all the shift registers in DM631B will be cleared (Kept at Low level) . DCK LAT RESET (internal) Option 1 : Signals Combination to set up One-Shot Mode (OSM) t 12 3 12 3 GCK DCK LAT RESET (internal) Option 2 : Signals Combination to set up Auto-Reload Mode (ARM) t 123 12 3 GCK XX XX *1 ARM switch to OSM timing diagram, please refer to page 18. *2 OSM switch to ARM timing diagram, please refer to page 19.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 14 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Internal/External Clock Mode selection Grayscale luminous of each channel comes fr om comparisons of grayscale PWM luminous data and grayscale counter value. In internal-clock mode, DM631B provides build-in oscillator for counter operation. In external-clock mode, the cl ock source of counter is from control system through GCK pin. The default mode is the Internal -Clock Mode(ICM ＊1) after power-on. Users could do mode select between IC M and External-Clock Mode (ECM ∗2 ) by following timing sequence. The option 1 shows four rising edges of latch pulses ( LAT ) when the data clock (DCK) kept at high level and the grayscale clock (GCK) kept at low then sending three rising edges of DCK when LAT and GCK both kept at high level. Then we can input external gray scale clock from GCK pin to operate grayscale PWM function after the falling edge of LAT . The option 2 shows five rising edges of LAT when DCK kept at high level and GCK at low level then sending four rising edges of DCK , while LAT and GCK kept at high level . After the falling edge of LAT , grayscale PWM function operates by internal gray s cale clock generator. Notice that when internal RESET at low level, all the shift registers in DM631B will be cleared (Kept at Low level). DCK LAT RESET (internal) Option 1 : Signals Combination to set up External-Clock Mode (ECM) t 123 12 3 GCK DCK LAT RESET (internal) Option 2 : Signals Combination to set up Internal-Clock Mode (ICM) t 123 12 3 GCK XXXX LED Open Detection DM631B provides a real time monitor of LED open detection f unction without extra components or circuit design. It will be identifie d as a LED open failure when the output is turned on but the output voltage is below 0.2V . The test result of each channel will write to its correspondent shift register which is in LSB position (ERR[11], ERR[10], … ., ERR[0]) while strobe signal is active. User can refer to timing diagram on page11. Dete cting report could be retrieved from serial-out (DAO) data. If the system reads ‘1’ back, that indicates LED is in normal status. But if ‘0’ was retrieved then LED open failure has occurred. In order to make sure LED open detection function is in well opera ting condition, thold(L) *3 should larger then 360n sec(typ) due to the build-in delay between outputs. An d it is recommended that all the luminance data wrote to ‘1’ during detection. 1 ICM switch to ECM timing diagram, please refer to page 20. ∗ 2 ECM switch to ICM timing diagram, please refer to page 21 * 3 Hold time between LAT and DCK, please refer to page 15.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 15 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram 1. DCK-DAI, DAO DCK DAI DAO 50% 50% 50% 50% 50% 50% twDCK twDCK tsetup(D) thold(D) tpLH tpHL 50% 50% 2. DCK-LAT DCK LAT 50% 50% 50% tsetup(L) twLAT 50% thold(L) 3. GCK-OUT 0 GCK OUT0 50% 50% 50% tpLH tpHL 50% ON OFF 4. Output Delay Time Unit (N=0, 4, 8, 12) OUTN OUTN+1 50% 50% td OUTN+2 50% td OUTN+3 50% td ON OFF ON OFF ON OFF ON OFF

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 16 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram (Rising-Edge Mode switch to Falling-Edge Mode) Don＇caret *2 ERR[0] is the error message of LED open detection. *3 LAT is level trigger, not edge trigger. J[ 1 ] 192 DAI DAO DCK LAT 12 192 GCK OUTn*4 (current ) J[ 1 9 1 ] Fr ame Data JFr ame DataI high low high low L[ 1 9 1 ] J[ 2 ] I [1] Counter reset *4 Iout turn off when LAT is high level ,and turn on at the first GCK rising edge when LAT is low level. J [190 ] 12 34 L[ 1 9 0] L[ 1 8 9 L[ 1 8 8]] *1 REM, ARM, ICM is configered by default. They can switch to FEM, OSM, ECM accordingly. All registers in DM631B with be reset when any switch procees occur. Fr ame Data L (internal) GCK (external) on of f high low Don＇caret L[0] Don＇caret ERR[0]*2 FEM switch period Grayscale data clock-in periodGrayscale data clock-in period *5 J[191],J[190],J[2],J[1],J[0],I[1],I[1],L[191].L[190],… L[0],M[191],M[190],… are serial data for DM631B. Fr ame Data L 191190 For example, if the refresh rate in display system is higher than 60Hz, the input GCK frequency must be higher than 246kHz. =Refresh Rate (Hz) Input GCK Frequency (Hz) Total PWM resolution (212)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 17 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram (Falling-Edge Mode switch to Rising-Edge Mode) Don＇caretDon＇caret *2 ERR[0] is the error message of LED open detection. *3 LAT is level trigger, not edge trigger. M[1] 191 192 DAI DAO DCK LAT 12 192 GCK OUTn*4 (current ) M [191] M[190 ] Frame Data MFr ame DataL on of f high low high low O[191] 190 M[2] L[ 1 ] Counter reset *4 Iout turn off when LAT is high level ,and turn on at the first GCK rising edge when LAT is low level. M[ 1 8 9 ] 12 34 *1 REM, ARM, ICM is configered by default. They can switch to FEM, OSM, ECM accordingly. All registers in DM631B with be reset when any switch procees occur. Fr ame Data O (internal) GCK (external) high low ERR[0]*2 Don＇caret REM switch period Grayscale data clock-in periodGrayscale data clock-in period *5 M[191],M[190],… M[0],L[2],L[1],O[191].O[190],… O[0],P[191],P[190],… are serial data for DM631B. L[ 2 ] *5 Fr ame Data O For example, if the refresh rate in display system is higher than 60Hz, the input GCK frequency must be higher than 246kHz. =Refresh Rate (Hz) Input GCK Frequency (Hz) Total PWM resolution (212)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 18 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram (Auto-Reload Mode switch to One-Shot Mode) Don＇careD[0] on of f high low high low D[191] DAI DAO*1 DCK LAT*3 OUTn*4 12 1 9 2 F[191] F[190] F[0] *2 ERR[0] is the error message of LED open detection. *3 LAT is level trigger, not edge trigger. *4 Iout turn off when LAT is high level ,and turn on at the first GCK rising edge when LAT is low level. *1 REM, ARM, ICM is configered by default. They can switch to FEM, OSM, ECM accordingly. All registers in DM631B with be reset when any switch procees occur. D[1 ]90 192 GCK (external) Frame Data F For example, if the refresh rate in display system is higher than 60Hz, the input GCK frequency must be higher than 256kHz. =Refresh Rate (Hz) Input GCK Frequency (Hz) Total PWM resolution (212) (current) high low Counter reset Frame Data C Frame Data D GCK (internal) t 123 Don＇ caret *5 D[191],D[190],… D[0],F[191],F[190],...F[0],G[191],G[190],… are serial data for DM631B. OSM switch period Grayscale data clock-in periodGrayscale data clock-in period Don＇ caret Frame Data D

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 19 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram (One-Shot Mode switch to Auto-Reload Mode) *2 ERR[0] is the error message of LED open detection. *3 LAT is level trigger, not edge trigger. ERR[0]*2 G[1] 191 192 DAI DAO DCK LAT t 12 192 GCK OUTn*4 (current ) G[191] Fr ame Da taGFr ame DataF on of f high low high low I [191]F[1] *4 Iout turn off when LAT is high level ,and turn on at the first GCK rising edge when LAT is low level. G[187 ] I [190] J[192] J[191] *1 REM, ARM, ICM is configered by default. They can switch to FEM, OSM, ECM accordingly. All registers in DM631B with be reset when any switch procees occur. G[188][190 ]G (inernal) G[189] (external) Frame Data I high low Don＇care Don＇caret Don＇caret ARM switch period Grayscale data clock-in periodGrayscale data clock-in period Frame Data I For example, if the refresh rate in display system is higher than 60Hz, the input GCK frequency must be higher than 246kHz. =Refresh Rate (Hz) Input GCK Frequency (Hz) Total PWM resolution (212)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 20 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram (Internal-Clock Mode switch to External-Clock Mode) *2 ERR[0] is the error message of LED open detection. *3 LAT is level trigger, not edge trigger. P[1 ] 191 192 DAI DAO DCK LAT 12 192 GCK OUTn*4 (current ) Frame Data PFr ame DataO high low high low Q [191] 190 P[2 ] *4 Iout turn off when LAT is high level ,and turn on at the first GCK rising edge when LAT is low level. P[ 1 8 8] Q[190] R[191] R[190] *1 REM, ARM, ICM is configered by default. They can switch to FEM, OSM, ECM accordingly. All registers in DM631B with be reset when any switch procees occur. Fr ame DataQ P [189] (external) GCK (internal) high low high low Counter reset P[ 1 9 1 ]O[1] P[ 1 9 0] Don＇caret ERR[0]*2 Don＇caretDon＇caret ECM switch period Grayscale data clock-in periodGrayscale data clock-in period *5 P[191],P[190],… P[0],O[1],Q[191].Q[190],… Q[0],R[191],R[190],… are serial data for DM631B. For example, if the refresh rate in display system is higher than 60Hz, the input GCK frequency must be higher than 246kHz. =Refresh Rate (Hz) Input GCK Frequency (Hz) Total PWM resolution (212)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 21 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Timing Diagram (External-Clock Mode switch to Internal-Clock Mode) *2 ERR[0] is the error message of LED open detection. *3 LAT is level trigger, not edge trigger. R[1] 191 192 DAI DAO DCK LAT 12 192 GCK OUTn*4 (current ) Frame Data RFr ame DataQ high low high low S[ 1 9 1 ] 190 R[2] Counter reset *4 Iout turn off when LAT is high level ,and turn on at the first GCK rising edge when LAT is low level. R[187 ] S[ 1 9 0 ] T[191] T[190] *1 REM, ARM, ICM is configered by default. They can switch to FEM, OSM, ECM accordingly. All registers in DM631B with be reset when any switch procees occur. Frame Data S R[188 ][190]R (external) R[189] on of f GC K (internal) high low R[191]Q[1] ERR[0]*2 Don＇caret Don＇caretDon＇caret ICM switch period Grayscale data clock-in periodGrayscale data clock-in period *5 Q[1],R[191],R[190],… R[0],S[191].S[190],… S[0],T[191],T[190],… are serial data for DM631B. For example, if the refresh rate in display system is higher than 60Hz, the input GCK frequency must be higher than 246kHz. =Refresh Rate (Hz) Input GCK Frequency (Hz) Total PWM resolution (212)

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 22 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Output Modulation Technique DM631B provides a new LED drive technique of output modulation. It improves traditional Pulse Width Modulation (PWM) by 2-section modul ation. The main benefits of 2-section modulation are to drive LED with an equivalent higher refresh ra te (up to 6.1MHz in DM631B when FGCK = 25MHz) and change bit to next bit smoothly. The relationships between PWM and 2-section modulation in time domain can be refer to the diagram (not to scale) below:

0000 XXXXXXXX

Bit[7:0] (PWM) Bit[11:0] on off on off on off on off on off on off on off on off t 4096 clocks MSB LSB MSB MSB MSB MSB MSB MSB MSB XXXXXXXX LSB XXXXXXXX LSB XXXXXXXX LSB XXXXXXXX LSB XXXXXXXX LSB XXXXXXXX LSB XXXXXXXX LSB Ultra High Resolution Current Outputs DM631B could provide 12-bit 2-section PWM cont rol current outputs for each channel. There are two advantages for system design. One is DM631B has sufficient bit resolution (4096 steps), not only LED color information but additional data su ch as global brightness, dot correction, and gamma correction can be represented by the proper al gorithms. The other is to reduce a lot of clock and data rate compared to conventional ON-OFF type LED drivers.

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 23 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Global Brightness Control DM631B has no built-in global brightness control feature. In order to obtain a lower resolution of global brightness contro l effect, two methods could be utili zed. Here show different ways to adjust the Rrext value or voltage drop across the external resistor. Please see the reference circuit below: Output to Output Delay DM631B has build-in output to output delay with a special arrangement. This arrangement help chip avoid noise cause by large current during ch annels switching. The arrangement details are shown as following table. Channel 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Delay units 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 24 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Power Dissipation The power dissipation of a semiconductor chip is limited to its package and ambient temperature, in which the device requires the maximum output current calculated for given operating conditions. The maximum allowable pow er consumption can be calculated by the following equation: Pd(max)(Watt) = Tj(junction temperature)(max)(°C)– Ta(ambient temperature)(°C) Rth(junction-to-air thermal resistance)(°C/Watt) The relationship between power dissipation and ope rating temperature can be refer to the figure below: PD - Ta curve 0.5 1.5 2.5 3.5 4.5 0 2 04 06 08 0 1 0 0 1 2 0 1 4 0 1 6 0 Ambient Temperature Ta ( ℃ ) Power Dissipation Pd(W) The power consumption of IC can be determined by the following equation and should be less than the maximum allowable power dissipation: SSOP24 TSSOP24E Tj(max)=150°C Rth(TSSOP24E=30°C/Watt Rth(SOP24B)=57°C/Watt Rth(DIP24B)=67°C/Watt Rth(SSOP24)=70°C/Watt SOP24B DIP24B

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 25 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Typical Application DM631B DM631B DM631B DM631B DM631B DM631B DM631B

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 26 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B D 24 13 121 E b e L A1 A2 A SEATING PLANE Package Outline Dimension DM631B-DIPB DIMENSIONS IN INCH DIMENSIONS IN MM SYMBOLS MIN. MAX. MIN. MAX. A - 0.210 - 5.334 A1 0.015 - 0.381 - A2 0.125 0.135 3.175 3.429 b 0.040 1.016 b1 0.018 0.457 D 0.880 0.920 22.352 23.368 E 0.300BSC 7.620BSC E1 0.245 0.255 6.223 6.477 E2 0.335 0.375- 8.509 9.525 e 0.070 1.778 L 0.115 0.150 2.921 3.810 Θ 0° 15° 0° 15°

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 27 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B D 24 13 121 E b e 0.004 A C DETAIL A A1 A L SEATING PLANE GAUGE PLANE Package Outline Dimension DM631B-SSOP DIMENSIONS IN INCH DIMENSIONS IN MM SYMBOLS MIN. MAX. MIN. MAX. A 0.053 0.069 1.346 1.753 A1 0.004 0.010 0.102 0.254 A2 - 0.059 - 1.499 b 0.008 0.012 0.203 0.305 C 0.007 0.010 0.178 0.254 D 0.337 0.344 8.560 8.738 E 0.228 0.244 5.791 6.198 E1 0.150 0.157 3.810 3.988 e 0.025 BSC. 0.635 BSC L 0.016 0.050 0.406 1.270 L1 0.041 BSC 1.041 BSC Θ 0° 8° 0° 8°

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 28 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B Package Outline Dimension DM631B-SOPB DIMENSIONS IN INCH DIMENSIONS IN MM SYMBOLS MIN. MAX. MIN. MAX. A - 0.075 - 1.900 A1 0.002 0.008 0.050 0.200 A2 0.051 0.067 1.300 1.700 b 0.012 0.020 0.300 0.500 c 0.004 0.010 0.100 0.250 D 0.504 0.520 12.800 13.200 E 0.303 0.327 7.700 8.300 e 0.0394 BSC 1.000 BSC E1 0.228 0.244 5.800 6.200 L 0.010 0.026 0.250 0.650 θ 0° 10° 0° 10°

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 29 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B S L 0.25mm GAUGE PLANE SEATING PLANE 24 13 121 be E D 0.05 A Package Outline Dimension DM631B-TSSOPE (exposed pad) DIMENSIONS IN INCH DIMENSIONS IN MM SYMBOLS MIN. MAX. MIN. MAX. A - 0.047 - 1.20 A1 0.000 0.006 0.00 0.15 A2 0.031 0.041 0.80 1.05 b 0.007 0.012 0.19 0.30 D 0.303 0.311 7.70 7.90 E1 0.169 0.177 4.30 4.50 E 0.252 BSC 6.400 BSC e 0.026 BSC 0.650 BSC L1 0.039 REF 1.000 REF. L 0.018 0.030 0.45 0.75 S 0.008 - 0.20 - Θ 0° 8° 0° 8° E2 0.0898 0.1122 2.280 2.850 D1 0.146 1.819 3.700 4.620

點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. 新竹市科學園區展業一路9號7樓 之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel：886-3-5645656 Fax ：886-3-5645626 16-channel 12-bit PWM Constant Current LED Driver Version:PRE.001 Preliminary Page 30 未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. D M 6 3 1 B The products listed herein are designed for ordinary electronic a pplications, such as electrical appliances, audio-visual equipment, communications devices and so on. Hence, it is advisable that the devices should not be used in medical instruments, surgical implants, aerospace machinery, nuclear power control systems, disaster/crime-prevention equipment and the like. Misusi ng those products may directly or indirectly endanger human life, or cause injury and property loss. Silicon Touch Technology, Inc. will not take any responsibilities regarding the misusage of the products mentioned above. Anyone who purchases any products described herein with the above-mentioned intention or with such misused applications should accept full responsibility and indemnify. Silicon Touch Technology, Inc. and its distributors and all their officers and employees shall defend jointl y and severally against any and all claims and litigation and all damages, cost and expe nses associated with such intention and manipulation.