DM163 ETC2 [List of Unclassifed Manufacturers], DM163 Datasheet

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DM163

Manufacturer Part Number
DM163
Description
8x3-CHANNEL CONSTANT CURRENT LED DRIVER
Manufacturer
ETC2 [List of Unclassifed Manufacturers]
Datasheet

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DM163
8x3-CHANNEL CONSTANT CURRENT LED DRIVER
Version
Issue Date :
File Name :
Total Pages:
新竹市科學園區展業一路 9 號 7 樓之 1
SILICON TOUCH TECHNOLOGY INC.
Tel:886-3-5645656
9-7F-1, Prosperity Road I, Science Based Industrial Park,
Hsin-Chu, Taiwan 300, R.O.C.
:
A.004
2005/8/19
SP-DM163-A.004.doc
21
Fax:886-3-5645626

Related parts for DM163

DM163 Summary of contents

Page 1

... CONSTANT CURRENT LED DRIVER Version : A.004 Issue Date : 2005/8/19 File Name : SP-DM163-A.004.doc Total Pages: 21 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. ...

Page 2

... DM163 could also be constructed as a PWM controller for LED drivers. When VDDH is connected to VDD, each of the 24 output channels outputs can act as an inverse digital signal for controlling the LED driver. ...

Page 3

... Figure 1. Functional Schematic of Whole Chip The schematic of DM163 comprises of several fundamental units as shown in Figure 1. The grayscale data are input onto the DM163 by the SIN pin and transferred according to the synchronous clock DCK. Meanwhile, in order to separate the data into two groups, SELBK is designed as a switch control pin. When a sequence of data is already transferred onto the chip, the LAT_B=” ...

Page 4

... SILICON TOUCH TECHNOLOGY INC. Block Diagram Figure 2. The Detailed Schematic of Each Channel 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS DM163 Version: A.004 Page 3 ...

Page 5

... IOUT[ IOUT[ IOUT[10 IOUT[11 IOUT[12 IOUT[13 IOUT[14 IOUT[15 IOUT[16 VSS_DR 33 DM163 NAME Pin No. NAME VSS_DR 34 VDD IOUT[17] 35 SOUT IOUT[18] 36 RST_B IOUT[19] 37 EN_B IOUT[20] 38 SELBK IOUT[21] 39 GCK IOUT[22] 40 LAT_B IOUT[23] 41 DCK VDDH[R] 42 REXT[B] ...

Page 6

... IOUT[ IOUT[ IOUT[ IOUT[10 IOUT[11 IOUT[12 IOUT[13 IOUT[14 IOUT[15 IOUT[16] 30 DM163 NAME Pin No. NAME IOUT[17] 31 VDD IOUT[18] 32 SOUT IOUT[19] 33 RST_B IOUT[20] 34 EN_B IOUT[21] 35 SELBK IOUT[22] 36 GCK IOUT[23] 37 LAT_B VDDH[R] 38 DCK VDDH[G] 39 REXT[B] ...

Page 7

... Thermal pad 10, 12, 13, 14, 15,16, 11, 12, 13, 14, 15, 17, 18, 19, 20,21, 16, 17, 18, 19, 20, 24, 25, 26, 27,28, 21, 22, 23, 24, 25, 29 Version: A.004 DM163 Page 6 ...

Page 8

... Version: A.004 DM163 UNIT MHz MHz mA W ℃ /W ℃ ℃ UNIT UNIT MHz ns ns MHz ...

Page 9

... 1.0V OUT R = 2.6kΩ EXT V = 1.0V OUT R = 2.6kΩ EXT R = 3kΩ DD EXT VDD=5V 1kΩ EXT VDD=5V, Cload=2pF, DCK=GCK=1MHz DM163 MIN. TYP. MAX. ⎯ ⎯ 20 ⎯ ⎯ 15 ⎯ ⎯ 20 ⎯ ⎯ ⎯ 15 ⎯ ⎯ 20 ⎯ ⎯ 100 ⎯ ⎯ ...

Page 10

... Ta = 25°C) DD CONDITION VIH=VDD VIL=GND REXT=3KΩ CL=13pF VIH=VDD VIL=GND REXT=3KΩ VLED=5.0V RL=120Ω CL=33pF CONDITION ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ DM163 MIN. TYP. MAX. ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ...

Page 11

... SILICON TOUCH TECHNOLOGY INC. Parameter Measurement 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS DM163 Version: A.004 Page 10 ...

Page 12

... Furthermore, the SELBK control signal is set to determine in which bank the data are placed. 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS th th bit and 6 bit at the 23rd channel, is the first data Version: A.004 DM163 st st bit at the 1 Page 11 ...

Page 13

... Set LAT_B=H to update the correction data after all correction data are in place (3) Set SELBK=H (Bank 1) and begin shift in 8 bits image data (4) Set LAT_B=H to update image data after 8 bit image are all in place. DM163 will utilize the 8 bits image data to determine the grayscale of each channel (5) Repeat steps (3) and (4) Figure 5 ...

Page 14

... Formula I (out, avg)= (BANK 1/256) x (BANK 0/64) x Iout, provides a useful way to calculate the input data and the output current. Iout is the reference current value shown in figure 12. Users could utilize the formula Iout =47*Vrext / Rext to get an approximate value of Iout. 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS DM163 Version: A.004 Page 13 ...

Page 15

... Due to this unique comparator design, DM163 exhibit a very distinct output characters in two certain scenario. In the first case, DM163 output will always be “OFF” when either one of the 8 bit or 6 bit bank is filled with loaded “H”, DM163 output will exhibit its highest luminance value (but not 100% luminance value). ...

Page 16

... The RST_B should be connected to controller to initialize the IC. 2. 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. 3. VSS_DR is the ground pin of LEDs. And it could be connected to VSS. 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Figure 10. Application Diagram DM163 Version: A.004 Page 15 ...

Page 17

... SILICON TOUCH TECHNOLOGY INC. Application Diagram (Cont.) Figure 11. Application Diagram of anode-common LED Driver Output Current (V 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS = 3.3V and 5.0V 25°C) DD Figure 12. R vs. Output Current EXT DM163 Version: A.004 Page 16 ...

Page 18

... Vrext, users may observe a different Iout-Vout curve than above. However, the curves of VDD=5v and VDD=3.3v should be close to each other when the same chip is tested because DM163 utilizes a negative feedback circuit to keep the average voltage of Vrext pins close to constant, regardless of the VDD. Therefore, the Iout-to-Rext curve should not be seriously influenced by VDD variation ...

Page 19

... SILICON TOUCH TECHNOLOGY INC. Package Outline Dimension QFP44 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS DM163 Version: A.004 Page 18 ...

Page 20

... SILICON TOUCH TECHNOLOGY INC. QFN40 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS DM163 Version: A.004 Page 19 ...

Page 21

... Touch Technology, Inc. and its distributors 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. 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS DM163 Version: A.004 Page 20 ...

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