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SC16722
CASCADE LED DRIVER OF HEAVY CURRENT
DESCRIPTION
SC16722 is a chip special for LED driver. It utilizes advanced CMOS technology and provides low power dissipation. This circuit has the protecting circuit for all the inputs and outputs to avoid the damage caused by the static discharge. And it has the ability of driving load and features high noise immunity.
FEATURES
* 3 bits driving output (Max.=30mA) * Provides the interface suited for cascade. * Input compatible with 5V CMOS voltage. * Maximum 15M serial clock frequency.
SOP-14-225-1.27
APPLICATION
* Lights decorations * Outdoors lights
ORDERING INFORMATION
Device SC16722 SC16722 COB Package SOP-14-225-1.27
BLOCK DIAGRAM
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SC16722
ABSOLUTE MAXIMUM RATINGS (Tamb=25C)
Characteristics Power Supply Voltage Input Voltage Output Current Output Voltage Clock Frequency Power Dissipation Pin Temperature Operating Temperature Storage Temperature Symbol VDD VIN IOUT VOUT FCLK PD TL Topr Tstg Ratings 0~+5.0 -0.4~ VDD +0.4 30 -0.5~ VDD +0.5 15 600 260(10S) -40~+85 -65~+150 Unit V V mA V MHz mW C C C
RECOMMANDED OPERATING CONDITIONS
Characteristics Operating Voltage Output Voltage Output Current Symbol VDD VOUT IOUT IOH IOL Input Voltage Clock Frequency Clock High Level Width Clock Low Level Width Signal Set-up Tme Signal Hold Time Power Dissipation Clock Low Level Width Storage Temperature VIH VIL FCLK CLKH CLKL SETUP HOLD CLKH CLKL Tstg 25ns -40~+100 25 25 10 10 450 -40~85C Driving output Other output Other output 4 -0.3 5 25 Test conditions Min. 2.0 5 30 1.0 -1.0 5.5 2.1 15 Typ. Max. 6.0 Unit V V mA mA mA V V MHz ns ns ns ns mW ns C
ELECTRICAL CHARACTERISTICS
Characteristics Symbol Test conditions VIN= VIH or VIL IOUT <30 VDD Tamb=25C TYP. The Minimum Output High Level VOH 2.0 4.5 6.0 The Maximum Output Low Level 2.0 VIN= VIH or VIL IOUT <30 VIN= VDD or GND 4.5 6.0 The Maximum Input Current IIN 6.0 2.0 4.5 6.0 TYP. VOL 0 0 0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.9 4.4 5.9 Tamb= -40~85C 1.9 4.4 5.9 Tamb= -55~125C 1.9 4.4 5.9 Limit value 0.1 0.1 0.1 0.1 V V V A Unit
Limit value V V V
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SC16722
TIME SEQUENCE CHARACTERISTICS
Characteristics Clock High Level Width Clock Low Level Width Signal Set-up Time Signal Hold Time SETUP HOLD 10 10 ns ns CLKL 25 ns Symbol CLKH Test conditions Min. 25 Typ. Max. Unit ns
Characteristics
Symbol
VDD
Tamb =25C TYP.
Tamb = -40~85C Limit value
Tamb = -55~125C
Unit
The
Maximum Tr Tf 2 4.5 6 1000 500 400 25 7 6 60 12 10 1000 500 400 75 15 13 1000 500 400 90 18 15 ns ns ns ns ns ns
Input Rising and Falling Time The Maximum
2 TTHL TTLH 4.5 6
Output Rising and Falling Time
PIN CONFIGURATIONS
SC16722
PIN DESCRIPTION
Pin No. 1 2 3 4 Pin Name DIN LIN OEIN CKIN I/O I I I I Serial data input Loading signal input Output enable input Serial clock input
(To be continued)
Descriptions
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SC16722
(Continued)
Pin No. 5 6 7 8 9 10 11 12 13 14
Pin Name OUT0 GND OUT1 GND OUT2 CKOUT OEOUT LOUT DOUT VDD
I/O O I/O O I/O O O O O O I/O Driving output Ground Driving output Ground Driving output Serial clock output Output enable output Loading signal output Serial data output Power supply
Descriptions
FUNCTION DESCRIPTION
SC16722 provides serial shift register and output storage register. When the serial clock input signal (CKIN leaps from low level to high level, the serial input data DIN is stored in register and the serial input changes to leaps from low level to high level, the output of 3 bits parallel output; When the loading signal input (LIN
register is as the input of the output storage register. SC16722 applies for LED display device, and it can provide 3 driving output of heavy current. Also it adapts to various cascade applications.
TIME SEQUENCY SCHEME
CKIN DIN OEBIN LIN OUT0 OUT1 OUT2 CKOUT DOUT OEBOUT LOUT 2 1 Hiz Hiz Hiz 0 Hiz Hiz Hiz 2 1 0 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V 5V 0V
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SC16722
CHIP TOPOGRAPHY
Chip size: 0.90x0.76 (mm2) Note: The substrate is connected with GND.
BONDING PAD COORDINATES
Boding pad 1 2 3 4 5 6 7 Symbol DIN LIN OEBIN CKIN OUT0 GND OUT1 X -329.10 -219.10 -109.10 0.90 110.90 220.90 330.90 Y -263.90 -263.90 -263.90 -263.90 -263.90 -263.90 -263.90 Boding pad 8 9 10 11 12 13 14 Symbol GND OUT2 CKOUT OEBOUT LOUT DOUT VDD X 330.90 220.90 110.90 0.90 -109.10 -219.10 -329.10 Y 263.875 263.875 263.875 263.875 263.875 263.875 263.875
Note: The original point of the coordinate is the die center.
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SC16722
TYPICAL APPLICATION CIRCUIT
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SC16722
PACKAGE OUTLINE
SOP-14-225-1.27 UNIT: mm
HANDLING MOS DEVICES:
Electrostatic charges can exist in many things. All of our MOS devices are internally protected against electrostatic discharge but they can be damaged if the following precautions are not taken: * Persons at a work bench should be earthed via a wrist strap. * Equipment cases should be earthed. * All tools used during assembly, including soldering tools and solder baths, must be earthed. * MOS devices should be packed for dispatch in antistatic/conductive containers.
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R EV:1.0
2006.04.19 Page 7 of 7

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