DM163 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 DM163 Version : A.004 Issue Date : 2005/8/19 File Name : SP-DM163-A.004.doc Total Pages: 21 8x3-CHANNEL CONSTANT CURRENT LED DRIVER
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 1 DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS General Description The DM163 is a LED driver that comprises shift registers, data latches, 8x3-channel constant current circuitry with current value se t by 3 external resistors, and 64 x 256 gray level PWM (Pulse Width Modulation) functi on unit. Each channel provides a maximum current of 60 mA. The grayscale data are se parated into BANK0 and BANK1 respectively, selected by SELBK pin. BANK0 is 6-bits grayscale data and the BNAK1 is 8-bits grayscale data. Depending on the system r equirement, both PWM banks could be utilized jointly to achieve maximum 8+6 bit grayscale performance. Alternatively, users can choose either 64-graylevel bank or 256-graylevel bank for dot correction, and the remaining bank as image data. DM163 could also be constructed as a PW M controller for LED drivers. When VDDH is connected to VDD, each of the 24 output c hannels outputs can act as an inverse digital signal for controlling the LED driver.
Features
z 8 + 6-bits PWM grayscale Control z Constant Current Output: 5mA to 60mA z LED Power Supply Voltage up to 17V z VDD=3V to 5.5V z Varied Output Current Level Set By 3 External Resistors z Serial Shift-In Architecture for Grayscale Data
Figure 2. The Detailed Schematic of Each Channel
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 4 Pin Connection (Top view) QFP44 Pin No. NAME Pin No. NAME Pin No. NAME Pin No. NAME
1 SIN 12 IOUT[7] 23 VSS_DR 34 VDD
2 VSS 13 IOUT[8] 24 IOUT[17] 35 SOUT
3 IOUT[0] 14 IOUT[9] 25 IOUT[18] 36 RST_B
4 IOUT[1] 15 IOUT[10] 26 IOUT[19] 37 EN_B
5 IOUT[2] 16 IOUT[11] 27 IOUT[20] 38 SELBK
6 IOUT[3] 17 IOUT[12] 28 IOUT[21] 39 GCK
7 IOUT[4] 18 IOUT[13] 29 IOUT[22] 40 LAT_B
8 IOUT[5] 19 IOUT[14] 30 IOUT[23] 41 DCK
9 IOUT[6] 20 IOUT[15] 31 VDDH[R] 42 REXT[B]
10 VSS_DR 21 IOUT[16] 32 VDDH[G] 43 REXT[G]
11 VSS_DR 22 VSS_DR 33 VDDH[B] 44 REXT[R]
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 5 QFN40 Pin No. NAME Pin No. NAME Pin No. NAME Pin No. NAME
1 REXT[R] 11 IOUT[7] 21 IOUT[17] 31 VDD
2 SIN 12 IOUT[8] 22 IOUT[18] 32 SOUT
3 VSS 13 IOUT[9] 23 IOUT[19] 33 RST_B
4 IOUT[0] 14 IOUT[10] 24 IOUT[20] 34 EN_B
5 IOUT[1] 15 IOUT[11] 25 IOUT[21] 35 SELBK
6 IOUT[2] 16 IOUT[12] 26 IOUT[22] 36 GCK
7 IOUT[3] 17 IOUT[13] 27 IOUT[23] 37 LAT_B
8 IOUT[4] 18 IOUT[14] 28 VDDH[R] 38 DCK
9 IOUT[5] 19 IOUT[15] 29 VDDH[G] 39 REXT[B]
10 IOUT[6] 20 IOUT[16] 30 VDDH[B] 40 REXT[G]
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 6 Pin Description PIN NAME FUNCTION QFP pin number QFN pin number VDDH (R) VDDH (G) VDDH (B) Output protection pins. They could be connected independently or to LED supplies (VLED). VDD Power supply terminal. 34 31 VSS Ground terminal. 2 3 VSS_DR Driver ground 10, 11, 22, 23 Thermal pad SIN Serial input for grayscale data. 1 2 SOUT Serial output for grayscale data. 35 32 DCK Synchronous clock input for serial data transfer. The input data of SIN is transferred at rising edges of DCK. 41 38 SELBK If SELBK is H, shift-in date would be stored in the 8-bit BANK 1. If SELBK is L, shift-in date would be stored in the 6-bit BANK 0. 38 35 LAT_B When LAT_B converts from H to L, grayscale data in both shift register banks are latched. 40 37 GCK Clock input for PWM operation. 39 36 REXT(R) REXT(G) REXT(B) External resistor connected between REXT and GND for driver current setting. REXT(R) controls outputs OUT0, 3, 6, 9, 12, 15, 18, 21. REXT(G) controls outputs OUT1, 4, 7, 10, 13, 16, 19, 22. REXT(B) controls outputs OUT2, 5, 8, 11, 14, 17, 20, 23. IOUT0~23 LED driver outputs. 12, 13, 14, 15,16, 17, 18, 19, 20,21, 24, 25, 26, 27,28, 29, 30 26, 27 EN_B Input terminal of output enable. All outputs are OFF when EN_B is H. 37 34 RST_B The IC is initialized when RST_B low. There is an internal pull-up on this pin. This pin couldn’t be floating. Before using the IC, it must be reset first. If each channel is assigned to drive multiple LEDs, IC should be reset before each LED data latch to prevent from flashing. 36 33
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 7 Maximum Ratings (Ta=25°C, Tj(max) = 140°C) CHARACTERISTIC SYMBOL RATING UNIT Supply Voltage V DD -0.3 ~ 7.0 V Input Voltage V IN -0.3 ~ V DD+0.3 V Output Current I OUT 60 mA Output Voltage V OUT -0.3 ~ 17 V DCK Frequency F DCK 20 MHz GCK Frequency F GCK 20 MHz GND Terminal Current I GND 1440 mA Power Dissipation P D 1.36 ( QFP44); 3.63 (QFN40) (Ta=25 °C) W Thermal Resistance R th(j-a) 84.42 ( QFP44 ); 31.67 (QFN40) ℃/W Operating Temperature T op -40 ~ 85 ℃ Storage Temperature T stg -55 ~ 150 ℃ Recommended Operating Condition DC Characteristics (Ta = 25°C) CHARACTERISTIC SYMBOL CONDITI ON MIN. TYP . MAX. UNIT Supply Voltage VDD ⎯ 3 5.5 V Output Voltage VOUT ⎯ ⎯ ⎯ 17 V IO OUTn 5 ⎯ 60 IOH SERIAL-OUT ⎯ ⎯ 2 Output Current IOL SERIAL-OUT ⎯ ⎯ -2 mA VIH ⎯ 0.8 VDD ⎯ V DD+0.2Input Voltage VIL ⎯ -0.2 ⎯ 0.2 V DD V AC Characteristics (VDD = 5.0 V, Ta = 25°C) CHARACTERISTIC SYMBOL CONDITI ON MIN. TYP. MAX. UNIT DCK Frequency F DCK Cascade operation ⎯ ⎯ 20 MHz DCK pulse duration twh / twl High or low level 15 ⎯ ⎯ ns DCK rise/fall time tr / tf ⎯ ⎯ ⎯ 20 ns GCK Frequency F GCK ⎯ 1 ⎯ 20 MHz GCK pulse duration twh / twl High or low level 15 ⎯ ⎯ ns GCK rise/fall time tr / tf ⎯ ⎯ ⎯ 20 ns Set-up Time for SIN tsetup(D) Before DCK rising edge 2 ⎯ ⎯ ns Hold Time for SIN thold(D) After DCK rising edge 3 ⎯ ⎯ ns Set-up Time for DCK tsetup(L) Before LAT_B falling edge 3 ⎯ ⎯ ns LAT_B Pulse Width tw LAT ⎯ 5 ⎯ ⎯ ns Set-up Time for LAT_B Tsetup(G) Before GCK rising edge 13 ⎯ ⎯ ns Set-up Time for SELBK Tsetup(S) Before DCK rising edge 5 ⎯ ⎯ ns Hold Time for SELBK Thold(S) After DCK rising edge 1 ⎯ ⎯ ns
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 8 AC Characteristics (VDD = 3.3 V, Ta = 25°C) CHARACTERISTIC SYMBOL CONDITI ON MIN. TYP. MAX. UNIT DCK Frequency F DCK Cascade operation ⎯ ⎯ 20 MHz DCK pulse duration twh / twl High or low level 15 ⎯ ⎯ ns DCK rise/fall time tr / tf ⎯ ⎯ ⎯ 20 ns GCK Frequency F GCK Cascade operation 1 ⎯ 20 MHz GCK pulse duration twh / twl High or low level 15 ⎯ ⎯ ns GCK rise/fall time tr / tf ⎯ ⎯ ⎯ 20 ns RST_B pulse duration twrst_b Low level 100 ⎯ ⎯ ns Set-up Time for SIN tsetup(D) Before DCK rising edge 2 ⎯ ⎯ ns Hold Time for SIN thold(D) After DCK rising edge 5 ⎯ ⎯ ns Set-up Time for DCK tsetup(L) Before LAT_B falling edge 5 ⎯ ⎯ ns LAT_B Pulse Width tw LAT ⎯ 7 ⎯ ⎯ ns Set-up Time for LAT_B Tsetup(G) Before GCK rising edge 23 ⎯ ⎯ ns Set-up Time for SELBK Tsetup(S) Before DCK rising edge 9 ⎯ ⎯ ns Hold Time for SELBK Thold(S) After DCK rising edge 1 ⎯ ⎯ ns Electrical Characteristics (VDD = 5.0 V, Ta = 25°C unless otherwise noted) CHARACTERISTIC SYMBOL CONDITI ON MIN. TYP . MAX. UNIT Input Voltage “H” Level V IH ⎯ 0.8 V DD ⎯ V DD Input Voltage “L” Level V IL ⎯ GND ⎯ 0.2 V DD V Output Leakage Current I leak V OH = 17 V ⎯ ⎯ ±0.1 uA VOL I OL = 2 mA ⎯ ⎯ 0.2 Output Voltage ( SOUT) VOH I OH = -2 mA 4.8 ⎯ ⎯ V Output Current (Channel-Channel) IOL1 VOUT = 1.0V REXT = 2.6kΩ ⎯ ±3 ±5 % Output Current (Chip-Chip) IOL3 VOUT = 1.0V REXT = 2.6kΩ ⎯ ±4 ±10 % Supply Voltage Regulation % / VDD R EXT = 3kΩ ⎯ ⎯ 2 % / V IDD, analog VDD=5V, R EXT = 1kΩ ⎯ 42.2 43.4 Supply Current1 IDD, digital VDD=5V, Cload=2pF, DCK=GCK=1MHz ⎯ 1 1.5 mA 1 I LED excluded.
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 9 Switching Characteristics (VDD = 3.3V, Ta = 25°C) CHARACTERISTIC SYMBOL CONDITI ON MIN. TYP . MAX. UNIT SOUT Rise time tor ⎯ 4 5 ns SOUT Fall time tof ⎯ 4 5 ns SOUT Propagation delay (L to H) tpLH ⎯ 24 30 ns SOUT Propagation delay (H to L) tpHL VIH=VDD VIL=GND REXT=3KΩ CL=13pF ⎯ 20 25 ns IOUT Rise time tor ⎯ 15 18 ns IOUT Fall time tof ⎯ 20 25 ns IOUT Propagation delay After GCK or EN_B (L to H / OFF to ON) tpLH ⎯ 35 37 ns IOUT Propagation delay After GCK or EN_B (H to L / ON to OFF) tpHL VIH=VDD VIL=GND REXT=3KΩ VLED=3.3V RL=120Ω CL=33pF ⎯ 30 35 ns Switching Characteristics (VDD = 5.0V, Ta = 25°C) CHARACTERISTIC SYMBOL CONDITI ON MIN. TYP . MAX. UNIT SOUT Rise time tor ⎯ 4 5 ns SOUT Fall time tof ⎯ 4 6 ns SOUT Propagation delay (L to H) tpLH ⎯ 19 25 ns SOUT Propagation delay (H to L) tpHL VIH=VDD VIL=GND REXT=3KΩ CL=13pF ⎯ 17 23 ns IOUT Rise time tor ⎯ 4 6 ns IOUT Fall time tof ⎯ 15 18 ns IOUT Propagation delay After GCK or EN_B (L to H / OFF to ON) tpLH ⎯ 26 30 ns IOUT Propagation delay After GCK or EN_B (H to L / ON to OFF) tpHL VIH=VDD VIL=GND REXT=3KΩ VLED=5.0V RL=120Ω CL=33pF ⎯ 20 25 ns Input Capacitance (Ta = 25°C) INPUT NODE SYMBOL CONDITION MIN. TYP. MAX. UNIT SIN C SIN ⎯ ⎯ 3 ⎯ pF DCK C DCK ⎯ ⎯ 3 ⎯ pF GCK C GCK ⎯ ⎯ 3 ⎯ pF SELBK CSELBK ⎯ ⎯ 3 ⎯ pF
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 1 0 Parameter Measurement
Figure 3. Serial Shift-In Luminance Data Structure This serial shift (shift register) architecture follows a FIFO (first-in first-out) formate. set to determine in which bank the data are placed.
waveform demonstrate a very different characteristics compare to conventional PWM counter. PWM pulses, this approach can help prevent LED from flickering in lower grayscale situation. Figure 7. An Example of Nonconsecutive PWM Signal loaded “H”, DM163 output will exhibit its highest luminance value (but not 100% luminance value). 28+26+1 GCK rather than always high.
Figure 10. Application Diagram
- The RST_B should be connected to controller to initialize the IC.
- VDDH_R/G/B should be connected to Vled_R /G/B respectively. The Vled_R/G/B are
power supply of Red/Green/Blue LEDs.
- VSS_DR is the ground pin of LEDs. And it could be connected to VSS.
Figure 13. Vout vs. Output Current chip-to-chip variation in Vrext, users may observe a different Iout-V out curve than above. seriously influenced by VDD variation. if IC is biased in this condition.
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 1 8 Package Outline Dimension QFP44
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 1 9 QFN40
點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. DM163 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 P a g e 2 0 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 equi pment and the like. Misusing those products may directly or indirectly endan ger human life, or cause injury and property loss. Silicon Touch Technology, Inc. will not ta ke 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 fu ll responsibility and indemnify. Silicon Touch Technology, Inc. and its distribut ors 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.