DM13H

DM13H SITI | Alldatasheet

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新竹市科學園區展業一路 9 號 4 樓之 3 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 DM13H Version : A.004 Issue Date : 2014/09/16 File Name : SP-DM13H-A.004.doc Total Pages : 26 16-Channel Constant Current LED Driver with Error Detection

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H DM13H 16-Channel Constant Current LED Driver With Error Detection General Description DM13H is a 16-channel 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 of each channel is set by a single external resistor. Overall out put currents can be adjusted by a 7-bit serial shift-in data. Its built-in LED open/short detection, out put channels short to GND detection help users to detect LED failures, outputs short. The thermal alarm and shutdown functions provide the over-temperature protection.

Features

z 16-Channel Constant-current outputs: 3mA to 90mA adjustable by one external resistor z Maximum output voltage: 17V z Maximum cascade clock frequency: 25MHz z 7-bit linear global brightness control z Built-in LED open/short detection: Real-time detection or Smart detection z Built-in Outputs short to GND detection: Real-time or Smart detection z Fast detecting response: 100ns (min.) z Over temperature protection: Alarm (junction temperature > 130°C) Shutdown (junction temperature > 170°C) z Sleep mode (sleep current : 5uA) z In-rush current control z Schmitt trigger input z Power supply voltage: 3.0V to 5.5V z Package pin assignment compatible to conventional LED drivers (DM134B/5B,DM13C)

Applications

z LED Variable Message Signs (VMS) System z Indoor/Outdoor LED Video Display Packages SOP24, SSOP24, TSSOP24E, SOP24B, QFN24

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Block Diagram

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Pin Connection (Top View) SOP24 / SSOP24 / TSSOP24E / SOP24B QFN24 12 13 GND DAI CLK LAT OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 VCC REXT DAO EN OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 OUT6 OUT7 Pin Description PIN No. PIN NAME FUNCTION SOP24 / SSOP24 / TSSOP24E / SOP24B: 1 QFN24: 22 GND Ground terminal. SOP24 / SSOP24 / TSSOP24E / SOP24B: 2 QFN24: 23 DAI Serial data input terminal. SOP24 / SSOP24 / TSSOP24E / SOP24B: 3 QFN24: 24 CLK Synchronous clock input te rminal for serial data transfer. Data is sampled at the rising edge of CLK. SOP24 / SSOP24 / TSSOP24E / SOP24B: 4 QFN24: 1 LAT Input terminal of data strobe. Data on shift register goes through at the rising edge (edge trigger). Otherwise, data is latched. SOP24 / SSOP24 / TSSOP24E / SOP24B: 5~20 QFN24: 2~17 OUT0~15 Sink constant-current outputs (open-drain). SOP24 / SSOP24 / TSSOP24E / SOP24B: 21 QFN24: 18 EN Output enable terminal: ‘H’ for all outputs are turned off , ‘L’ for all outputs are active. SOP24 / SSOP24 / TSSOP24E / SOP24B: 22 QFN24: 19 DAO Serial data output terminal. SOP24 / SSOP24 / TSSOP24E / SOP24B: 23 QFN24: 20 REXT External resistors connected between REXT and GND for output current value setting. SOP24 / SSOP24 / TSSOP24E / SOP24B: 24 QFN24: 21 VCC Supply voltage terminal.

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Equivalent Circuit of Inputs and Outputs 1.CLK, DAI, LAT , EN terminals ( Schmitt Trigger Input ) 2. DAO terminals

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H 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 90 mA Output Voltage VOUT -0.3 ~ 17 V Input Clock Frequency FCKI 30 MHz GND Terminal Current IGND 1500 mA 1.5 (SSOP24) Power Dissipation PD 2.8 (TSSOP24) W 85 (SSOP24) Thermal Resistance Rth(j-a) 45 (TSSOP24E) °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 ⎯ 3.0 ⎯ 5.5 V Output Voltage VOUT Driver Off *1 ⎯ ⎯ 17 V IO OUTn, VCC=5V 3 ⎯ 90 IOH VOH = VCC – 0.2 V ⎯ ⎯ +1.5 Output Current IOL VOL = 0.2 V ⎯ ⎯ -1.5 mA VIH 0.7VCC ⎯ VCC Input Voltage VIL VCC = 3.3 V ~ 5V 0.0 ⎯ 0.3VCC V Single Chip Operation 30 Input Clock Frequency FCKI Cascade Operation ⎯ ⎯ ⎯ MHz LAT Pulse Width tw LAT 15 ⎯ ⎯ CLK Pulse Width tw CLK 13 ⎯ ⎯ EN Pulse Width tw EN 50 ⎯ ⎯ 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 10 ⎯ ⎯ ns LAT Pulse Width tw LAT 15 ⎯ ⎯ CLK Pulse Width tw CLK 13 ⎯ ⎯ EN Pulse Width tw EN 50 ⎯ ⎯ Set-up Time for DAI tsetup(D) 12 ⎯ ⎯ Hold Time for DAI thold(D) 8 ⎯ ⎯ Set-up Time for LAT t s e t u p ( L ) 8 ⎯ ⎯ Hold Time for LAT thold(L) VCC =3.3V 12 ⎯ ⎯ ns *1 The driver output voltage including any overshoot stress has to be compliant with the maximum voltage (17V).

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Electrical Characteristics (VCC = 5.0 V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT Input Voltage “H” Level VIH CMOS logic level 0.7VCC ⎯ VCC Input Voltage “L” Level VIL CMOS logic level GND ⎯ 0.3VCC V Output Leakage Current IOL VOH = 17 V ⎯ ⎯ +1 uA VOL IOL = -1.5 mA ⎯ ⎯ 0.2 Output Voltage (S-OUT) VOH IOH= 1.5 mA VCC-0.2 ⎯ ⎯ V Output Current Skew (Channel-to-Channel)*1 IOL1 ⎯ ⎯ ±4 % Output Current Skew (Chip-to-Chip)*2 IOL2 VOUT = 1.0 V Rrext = 3.9 KΩ ⎯ ⎯ ±6 % Output Voltage Regulation % / VOUT Rrext = 3.9 KΩ VOUT = 1 V ~ 3 V ⎯ ±0.1 ±0.5 Supply Voltage Regulation % / VCC Rrext = 3.9 K Ω ⎯ ±1 ±4 % / V Differential Linearity DNL Rrext = 3.9 K Ω ⎯ ±1.2 LSB Output Voltage Short to GND, LED Open Detection Threshold V(od) output turns on ⎯ 0.1 ⎯ V SV = ”H” ⎯ VCC ⎯ V LED Short Detection Threshold *3 (output turns on) V(sd) SV = ”L” ⎯ 5/6VCC ⎯ V T(130) ⎯ 130 ⎯ Thermal Threshold T(170) ⎯ 170 ⎯ Thermal Shutdown Threshold T(sht) junction temperature ⎯ 170 ⎯ IDD(off) power on all pins are open unless VCC and GND ⎯ 1.2 ⎯ IDD(off) Rrext = 3.9 KΩ all outputs turn off ⎯ 7 IDD(on) Rrext = 3.9 KΩ all outputs turn on ⎯ 7.6 ⎯ IDD(off) Rrext = 820 Ω all outputs turn off ⎯ 27.5 IDD(on) Rrext = 820 Ω all outputs turn on ⎯ 30 ⎯ mA Supply Current (Input signal is static) IDD(sleep) Sleep current ⎯ 5 uA *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 LED short detection voltage level default value is VCC , refer to Page 12 for level selection.

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Switching Characteristics (VCC = 5.0V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT EN -to-OUT0 14 26 36 LAT -to-OUT0 19 31 41 Propagation Delay (‘L to ‘H’) CLK-to-DAO tpLH 15 19 23 EN -to-OUT0 19 31 41 LAT -to-OUT0 19 32 41 Propagation Delay (‘H’ to ‘L’) CLK-to-DAO tpHL 16 20 24 Output Current Rise Time tor 4.5 10 18 Output Current Fall Time tof 4.5 10 18 Output Delay Time (OUT(n)-to-OUT(n+1)) tod 0.5 3 5.5 Detection Response tdet VIH = VCC VIL = GND Rrext = 3.9 KΩ VL = 5.0 V RL = 0.18 KΩ CL = 13 pF 20 100 120 ns Switching Characteristics (VCC = 3.3V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITION MIN. TYP . MAX. UNIT EN -to-OUT0 16 36 46 LAT -to-OUT0 21 37 47 Propagation Delay (‘L to ‘H’) CLK-to-DAO tpLH 18 22 26 EN -to-OUT0 19 35 41 LAT -to-OUT0 19 37 41 Propagation Delay (‘H’ to ‘L’) CLK-to-DAO tpHL 19 23 27 Output Current Rise Time tor 7.5 14 21 Output Current Fall Time tof 7.5 14 21 Output Delay Time (OUT(n)-to-OUT(n+1)) tod 0.7 3 6.5 Detection Response tdet VIH = VCC VIL = GND Rrext = 3.9 KΩ VL = 5 V RL = 0.18 KΩ CL = 13 pF 20 100 120 ns

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Timing Diagram 1. CLK-DAI, DAO DCK DAI DAO 50% 50% 50% 50% 50% 50% twDCK twDCK tsetup(D) thold(D) tpLH tpHL 50% 50% 2. CLK- LAT CLK LAT 50% 50% 50% tsetup(L) twLAT 50% thold(L) 3. LAT -OUT0 LAT OUT0 (current) 50% 90% 10% 90% 10% 50% tpLH tor tof 50% 50% tpHL 4. EN-OUT0 EN OUT0 (current) 50% 90% 10% 90% 10% 50% tpLH tor tof 50% 50% tpHL twEN 5. OUT n+1-OUTn 50% tod 50% OUTn+1 (current) OUTn (current)

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 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. DM13H Constant-Current Output Constant-current value of each output channel is set by an external resistor connected between the REXT pin and GND. Varying the resi stor value can adjust the current scale ranging from 3mA to 90mA. The referenc e voltage of REXT terminal (Vrext) is approximately 1.23V. The output current value is calculated by the following equation: 123456789 1 0 Rext (K) IOUT(mA) In order to obtain a good performance of constant-current output, a suitable output voltage is necessary. Users can get related information about the minimum output voltage below. 100 VOUT(V) IOUT(mA) Iout (mA) ~ V rext (V) Rrext (KΩ) × 65

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 0 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. DM13H Serial Data Interface DM13H includes a flexible data transfer interf ace. The data can be transferred from DAI pin to the shift registers at the rising edge of CLK. After all data are clocked in, a rising edge of the LAT signal can transfer the serial data to the data latches (Edge trigger). The serial data format can be 16-bit or 10-bit wide, depending on the operating mode of the device. Operation Mode DM13H has two operating modes dependi ng on the combinat ion of CLK and LAT signals. The table below shows the availabl e operating modes. For normal operation (SD mode), the data width of shift regi ster is 16-bit, which is used to set 16 bits serial-in image data. The sequence of the combination of CLK and LAT explains in following pages is used to change the operation mode. If there are four triggering clock pulses (CLK) with high level latch ( LAT ), DM13H will change to command data input mode (CD mode) at falling edge of the latch pulse ( LAT ) then user can make ten trigger ing clock pulses to set 7-bit GBC data (default value after power-on is 7’b1000000), 1-bit voltage level selection of short detection (default value after power-on is 1’b1) and 1-bit sleep control data (default value is 1’b0) OPERATION MODE SHIFT REGISTER Serial-in Data Input Mode (SD mode) 16-bit Command Data Input Mode (CD mode) 10-bit

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H SD Mode Data Format OUT15 MSB OUT13 OUT2 OUT0OUT12 OUT3‧‧‧ LSB 013 2 3 OUT4OUT11 11 414 12 OUT14 OUT1 Shift-in first When DM13H operates at SD mode, the serial -in data (DAI) will be clocked into 16-bit shift register synchronized on the rising edge of the clock (CLK). The data ‘1’ represents the corresponding current output ‘ON’, while the data ‘0’ stands for ‘OFF’. The data will be transferred into the 16 bit latch synchroni zed on the rising edge of the strobe signal ( LAT ); otherwise, the output data won’t be changed. The latch pulse should be sent after the falling edge of the last clock within a frame data. 0123 1 3 1 4 1 5 CLK DAI DAO previous data 012 LAT EN OUT 0 OUT 1 on off on off on off on off on off on off on off high low high low ... OUT12 OUT13 OUT14 OUT15 OUT 2 (current) (current) (current) (current) (current) (current) (current) Tsetup (L)

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H CD Mode Data Format a. Global Brightness Control DM13H offers a convenient way to fine tune the whole chip out put currents for the uniformity of brightness betw een modules, ICs or the accom odation to ambient light. To further adjust the current level linearly, the system shall enter the CD MODE and then shift in 7-bit GBC data code through DAI pin. The M SB should be shifted-in first. Take the input code. G[6:0]= (MSB)1001011(LSB) for example. The new current is then equal to the base current multiplied by the ratio 128 1)2222( 0136 ++++ . The 7-bit data won’t be changed until the next new data is latched. Note that the default c ode 7’b1000000 exists in chip memory when power on, so the output current is equal to the half of base current. b. Short detection voltage level selection DM13H provides 2 voltage levels in coordi nation with LED short detection on system. VCC voltage level is the default value while pow er-on. DAO will send an error signal = H if the output voltage is greater than a respectively predetermined threshold value. SV Short Voltage 0 5/6 * VCC

1 VCC (default)

c. Sleep mode When SLP=1, DM13H will enter sleep mode, all outputs turn off and the IDD of DM13H will drop down to less than 5uA. This function is especially designed for battery or solar powered system.

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H Error Detection DM13H includes Real-time and Smart detection mode for LED open/short and driver outputs short to GND detection. It can be set as six types which are showing as following table. Detection Type Detection Operation Real time LED Open Detection CLK rising edge x1, with LAT =H Real time Output Short to GND Detection CLK rising edge x2, with LAT =H Real time LED Short Detection CLK rising edge x3, with LAT =H Smart LED Open Detection CLK rising edge x1, with LAT =H then LAT falling edge x2 with CLK=H Smart Output Short to GND Detection CLK rising edge x2, with LAT =H then LAT falling edge x2 with CLK=H Smart LED Short Detection CLK rising edge x3, with LAT =H then LAT falling edge x2 with CLK=H Selection of detection types is a collocation of CLK and LAT . After detection executed, the error report will be saved in the particular shift register and could be retrieved from serial-out(DAO) data. For Real-Time LED open/short detections, it ’s necessary to set the image data of the particular output channel as ‘1’. The serial-out data is ‘0’ in the LED normal state, and the serial-out data will be ‘1’ while a LED failure has occurred. If the image data is written to “0” or the output terminal is inactive ( EN=H), it will not execute any detection process for the corresponding channel. Therefore, the serial-data will remain as “0”. For Real-Time Output Short to GND detecti on type, set the image data of the particular output channel to ‘0’, outputs’ state will be identified from DA O as above. In output normal state, the serial-out data is ‘0’, but if the serial-out data is ‘1’ then a DM13H output voltage lower than 0.1V. If the image data of particular channel is ‘1’, no detection will be executed for the corresponding channel, and the serial-out data will be ’0’. Otherwise, If output enable terminal is active (EN=’L’), the serial-out data will be ’0’. DM13H specializes in fast detection response, 100ns minima. Moreover, it offers multi selections like Real-Time monitor and Smart detection. Accordingly, it is more flexible and well adapted to the system requirements.

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H a. Normal operation When DM13H operates at normal operation (Latch only) the DAO pin will send out the original serial-in data not the error message. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) J[ 0 ] L[15] L[14] Fr ame DataJFr ame DataI high low high low L[ 1 5] J[ 2 ] I [1] 12 3 L[ 1 4 ] L[ 1 3] Fr ame Data L on of f L[0] Don＇caret Normal operation SD mode 1514 J [15]I [2] J 14[] b. LED Open/Short Detection(Real-time) Set one CLK rising edge with LAT =‘H’ to operate Open Real-Time detection. Each channel will be identified as a LED open failure when there is a current passing through the output but the voltage is below 0.1V. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) J[ 0 ] L[15] L[14] Fr ame DataJFr ame DataI L[ 1 5] J[ 2 ] I [1] 12 3 L[ 1 4] L[ 1 3] Fr ame Data L L[0] Don＇caret LED Open Real Time Detection Mode SD ModeSD Mode 1514 I [0]I [2] E[ 1 5] E[1 4] High Low High Low On Off tDET

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H Set three CLK rising edges with LAT =‘H’ to operate Short Real-Time detection. A LED short failure will be identified when the output channel is on and the output voltage is higher VCC. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) Fr ame DataJFr ame DataI L[ 1 5] J[ 2 ] I [1] 12 3 L[ 14] L[13] Fr ame Data L L[0] Don＇caret LED Short Real Time Detection Mode SD ModeSD Mode 1514 I [0]I [2] 12 3 E[ 1 5] E[ 1 4] High Low High Low On Off tDET With the above operating principle, the c ontroller could continuously retrieve LED status from serial-out(DAO) then compare with the last frame date one by one . Once there is any serial-out data at ’1’ be retrieved, it pinpoints the channel with failed LED. Since the process is ongoing and without shifting betw een image and detection mode, it does not interrupt the image data flow and the output display. This is known as “Real-Time Monitor”. c. LED Open/Short Detection (Smart Detection) DM13H also specially provides another ”smart” detection method. In Smart detection mode, DM13H will automatically turns on all output channels with Iout =50uA until the next rising edge of the CLK pulse. After the rising edge of CLK, the output cu rrent will return to original state. Notice that enable control (EN) won’t affect smart detection result. Set one CLK rising edge with LAT =‘H’ then two LAT falling edges with CLK is ‘H’ to operate Open Smart detection. Each channel will be identified as a LED open failure when there is a current passing through the output but the voltage is below 0.1V. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) J[ 0 ] L[15] L[14] Fr ame Data JFrame Data I L[ 1 5] J[ 2 ] I [1] 12 3 L[ 1 4 ] L[ 1 3] M[15] M[14] M[13] Frame Data L L[0] Don＇caret LED Open Smart Detection Mode SD ModeSD Mode 1514 I [0]I [2] E[1 5] E[1 4] tDET High Low High Low On Off

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H Set three CLK rising edges with LAT =‘H’ then two LAT falling edges with CLK is ‘H’ to operate Short Smart detection. A LED short failure will be identified when the output channel is off and there is a current passing through the output but the voltage is above VCC. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) J [0] L[15] L[14] Fr ame Data JFrame Data I L[ 1 5] J[ 2 ] I [1] 12 3 L [14 ] L [13 ] M[15] M[14 ] M[13] Fr ame Data L L[0] Don＇caret LED Short Smart Detection Mode SD ModeSD Mode 1514 I [0]I [2] E[1 5] E[1 4] tDET High Low High Low On Off The error report of LED status will be retriev ed from DAO. Once there is any serial-out data at ’1’ be retrieved, controller can counts clocks to identify the locations of fail LED. The impression of “invisible failure detection” is achievable because of less data clock-in cycle and small current during detection to avoid a flash. After Smart detection, DM13H will return to normal operation until next detection. d. Outputs Short to GND Detection (Real-Time/Smart) This error detection mode could detect the fa ilure of IC and PCB. If IC output pins are burned-out or output pins on PCB layout are s hort to ground, the volt age of IC output pins would be pulled to low voltage. It will make LE Ds turn on all the time. Therefore, DM13H would determine the failure of IC output pins when the output voltage is below 0.1V. For the duration of output short to GND smart detection, the output would be turned off automatically and pulled high to VDD no matter channel is on or off. Set two CLK rising edges with LAT =‘H’ to operate Output Short to GND Real-Time detection. An output short failure will be identified when the output turn off but the voltage is below 0.1V. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) J[ 0 ] L[15] L[14] Fr ame DataJFr ame DataI L[ 1 5] J[ 2 ] I [1] 12 3 L[ 1 4 ] L[ 1 3] M[15] M[14] M[13] Fr ame Data L L[0] Don＇caret Output Short to GND Real Time Detection Mode SD ModeSD Mode 1514 I [0]I [2] E[ 1 5] E[ 1 4] High Low High Low On Off tDET

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H Set two CLK rising edges with LAT =‘H’ then sending two LAT falling edges with CLK is ‘H’ to operate Output Short to GND Smart detection. DM13H will force all outputs to turn off automatically, and start to detect output short error until the next rising edge of CLK pulse. After the rising edge of CLK, t he output current will return to original value. After the detection, device will return to Normal Operation. Notice that enable control ( EN) won’t affect smart detection result. Don＇caretJ[ 1 ] DAI DAO CLK LAT 12 16 OUT0 (current ) J[ 0 ] L[15] L[14] Fr ame DataJFr ame DataI L[ 1 5] J[ 2 ] I [1] 12 3 L[ 1 4] L[ 1 3] Frame Data L L[ 0 ] Don＇caret Output Short to GND Smart Detection Mode SD ModeSD Mode 1514 I [0]I [2] E[1 5] E[1 4] tDET High Low High Low On Off Outputs Delay Large in-rush currents will occur when the system activates all the outputs at once. To prevent this effect, a constant unit of delay between outputs is built-in DM13H. All outputs are divided into four groups and each group c ontains four outputs. For example, OUT0 ~ OUT3 form the group1; OUT4 ~ OUT7 form the group2. Ther e is no delay between every group. But each output delay between channels in a group is 3ns @VDD=3.3V (typical). OUT 0, 4, 8,12 OUT 1, 5, 9,13 OUT 2, 6, 10,14 OUT 3, 7, 11,15 tod tod tod tod tod tod

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H Thermal Alarm and Shutdown DM13H provides a temperature error detecti on circuit for thermal alarm and shutdown protection. When junction temperature of the IC exceeds 130℃, the thermal flag(T130) will be serial-out in the CD mode. If no cooling measures to reduce the temperature(by system), the junction temperature might conti nue to rise. Once it reaches to 170 ℃, DM13H will turn off all outputs. When the juncti on temperature is lower than 130 ℃, DM13H will restart automatically. Operation in the over-temperature situation( > 130 ℃) for a long time may cause chip damage permanently. Thermal Flag Description T130 130℃ temperature flag T170 170℃ temperature flag Tshut Shutdown Flag "H" : 16 outputs off, “L” : normal operation Normal T130=1 Normal Normal Normal T130=1 T170=0,Tshut=1

130 C 170 C

T170=1 Tshut=1 In CD mode, thermal flags wi ll be serial-out through DAO. According to these thermal flags, the control system can adopt proper way to protect whole display system. Please note the thermal flags are all ‘L’ in normal operation. *1 The difference between Frame data A and Aa is the max output current. DA [1] DAI DAO DCK LAT 12 10 OUT0 (current ) DA [0] GBCA[6] DA [1 5 ] Fr ame DataAFr ame DataZ on off high low high low DA[2] DZ[0] D A [14] DA [13] SLPA 15 16 DB [1] DB [0] GBCZ[6] GBCZ [5] SHUT GBCA[5] SV A [0] DA[15 ] D A [0] 12 34 D B [15] DB[15] D B[14] SD mode SD modeCD modeCD mode transfer Fr ame Data Aa SVA [1] T130 T170ZZ Z

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 1 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. DM13H Power Dissipation Notice that the power dissipation of a semi conductor chip is limited to its package and ambient temperature, in which the device r equires the maximum output current calculated for given operating conditions. The maximu m allowable power c onsumption 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 operating temperature can be refer to the figure below: PD - Ta curve 0.5 1.5 2.5 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: TSSOP24E SSOP24

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 2 0 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. DM13H Package Outline Dimension SOP24 Dimensions in mm Symbol MIN. TYP. MAX. A - - 2.650 A1 0.100 - 0.300 A2 2.050 - - b 0.310 - 0.510 c 0.200 - 0.330 D 15.240 - 15.700 E1 7.500 BSC e 1.270 BSC E 10.300 BSC L1 1.40 REF L 0.400 - 1.270 θ° 0 - 8

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 2 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. DM13H Package Outline Dimension SSOP24 Dimensions in inch Dimensions in mm b 0.008 - 0.012 0.203 - 0.305 C 0.007 - 0.01 0.178 - 0.254 e 0.025 BSC 0.635 BSC L1 0.041 BSC 1.041 BSC θ° 0 - 8 0 - 8

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 2 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. DM13H Package Outline Dimension TSSOP24E Dimensions in inch Dimensions in mm A1 0 - 0.006 0 - 0.15 b 0.007 - 0.012 0.19 - 0.3 E 6.400 BSC 6.400 BSC e 0.650 BSC 0.650 BSC L1 1.000 REF 1.000 REF θ° 0 - 8 0 - 8 PAD SIZE2 (112×18E) E2 0.09 - 0.112 2.28 - 2.85 D1 0.146 - 0.182 3.7 - 4.62

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 2 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. DM13H Package Outline Dimension SOP24B

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 2 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. DM13H Package Outline Dimension QFN24 DIMENSION (MM) DIMENSION (MIL) SYMBOL A1 0 0.02 0.05 0 0.79 1.97 A3 0.203 REF 8 REF e 0.50 BSC 19.69 BSC y 0.08 3.15

16-Channel Constant Current LED Driver with Error Detection Version:A.004 P a g e 2 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. DM13H The products listed herein are designed for ordinary electronic applications, 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, aerospa ce machinery, nuclear power control systems, disaster/crime-prevention eq uipment and the like. Misusing 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 res ponsibility and indemnify. Silicon Touch Technology, Inc. and its dist ributors and all their officers and employees shall defend jointly and severally against any and all claims and litigation and all damages, cost and expenses associated with such intention and manipulation. Silicon Touch Technology, Inc. reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant info rmation to verify, before placing orders, that information being relied on is current and complete.