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DD313
Version : A.003 Issue Date : 2008/09/26 File Name : SP-DD313-A.003.doc Total Pages : 22
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER with ERROR DETECTION
9 7 1
SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel886-3-5645656 Fax886-3-5645626

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER with ERROR DETECTION
General Description DD313 is a high constant current driver designed for power LED applications. It incorporates three-channel constant current circuitry with current value set by three external resistors. The three enable pins are specifically designed for independent control over each of the three output terminals. The fast response of the output current can adapt to high dimming resolution and high refresh rate applications. Built-in LED open detection, over temperature, and over current protection functions ensure the system reliability.
Features Three channel with independent dimming control and current adjustment Maximum output current: 500mA determined by three external resistors Minimum output voltage: 1V (Iout = 500mA) Maximum output voltage: 18V Fast output current response Supply voltage range: 5V ~ 18V Over current protection LED open detection Thermal alarm (junction temperature > 110C) Thermal shutdown (junction temperature > 180C)
Applications LED architectural or entertainment lighting LED general or specialty illumination LED backlighting applications
Package Types SOP16 (with exposed pad), TSSOP16 (with exposed pad)
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER Version: A.003 Page 1
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Block Diagram
Pin Connection
Pin Description
PIN No.
SOP16/TSSOP16: 1 SOP16/TSSOP16: 2 SOP16/TSSOP16: 3,4,5 SOP16/TSSOP16: 6,11,13 SOP16/TSSOP16: 7,8,9,10,14,15 SOP16/TSSOP16: 12 SOP16/TSSOP16: 16
PIN NAME
GND ALARM ENR,G,B OUTB,G,R REXTB
*1 *1
FUNCTION
Ground terminal. Output open drain terminal: (connected to a pull-high resistor)
`H' means normal conditions, `L' means LED open or chip overheated.
Output current enable terminal. Sink constant current outputs (open-drain). External resistors connected between REXT and GND for driver current value setting. Terminal for testing, user should leave this pin open. Power supply terminal.
REXTG REXTR
*1
RESERVE VCC
*1
Notice that both REXT pins (pin7 and 8, pin9 and 10, pin14 and 15) should be connected in PCB layout. Version: A.003 Page 2
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Maximum Ratings (Ta=25C, Tj(max) = 140C)
CHARACTERISTIC Supply Voltage Input Voltage Output Current Output Voltage Enable Voltage GND Terminal Current Power Dissipation Thermal Resistance (Junction to Air) Operating Temperature Storage Temperature SYMBOL VCC VIN Iout Vout VEN IGND Pd Rth(j-a) Top Tstg
*1
RATING -0.3 ~ 18
UNIT V
-0.3 ~ VCC 0.5 -0.3 ~ 18 V -0.3 ~ 18 1.5 3.3 ( TSSOP16 with exposed pad ) 2.7 ( SOP16 with exposed pad ) 38 ( TSSOP16 with exposed pad ) 46 ( SOP16 with exposed pad ) -40 ~ 85 -55 ~ 150 A W C/W A
C
Recommended Operating Condition
CHARACTERISTIC Supply Voltage SYMBOL VCC CONDITION Driver On Output Voltage Vout Driver Off Output Current Iout VIH VCC = 5V ~ 18V VIL Input Enable Frequency FEN Ven > 3.0V -0.3 DC 0.7 1 MHz
*2 *3
MIN. 5.0 0.8 3.0
TYP.
MAX. 18
UNIT V
V 18 0.5 18 V A
OUT(R, G, B)
Input Enable Voltage
*4
*1 *2
Base on JEDEC high conductivity test board (4-layer) simulation. The power dissipation is limited to its package and ambient temperature. *3 The driver output voltage including any overshoot stress has to be compliant with the maximum voltage (18V). *4 .To avoid destroying the ESD protection circuit, the input enable voltage should be lower than the supply voltage. 3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER Version: A.003 Page 3
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Electrical Characteristics (Ta = 25C unless otherwise noted)
CHARACTERISTIC Input Enable Voltage "H" Level SYMBOL VEN(IH) VCC = 5.0 V ~ 18 V Input Enable Voltage "L" Level VEN(IL) Vout = 18 V Ven (R,G,B) = 0 V -0.3 1.0 CONDITION MIN. 3.0 TYP. MAX. 18 V UNIT
Output Leakage Current Output Current Skew (Channel-to-Channel) Output Current Skew (Chip-to-Chip)
*2 *1
IOL
1.0
uA
IOL1 Vout = 1.0 V Iout = 50mA ~ 0.5A IOL2 Vout = 1 V ~ 3 V REXT = 1 REXT = 1
3 %
6
Output Voltage Regulation
*3
% / Vout
0.1
%/V
Supply Voltage Regulation
% / VCC
0.1
LED Open Detection Threshold
V(od)
all outputs turn on
0.3
V
Alarm threshold temperature
Talm REXT = 1 K all outputs turn on
110
C
Shutdown threshold temperature
Tstd VCC = 5 V REXT = 1 all outputs turn on VCC = 12 V REXT = 1 all outputs turn on VCC = 18 V REXT = 1 all outputs turn on
180
IDD1
1.2
Supply Current
*4
IDD2
2.4
mA
IDD3
3.3
*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 To operate driver within supply voltage 6.5V~8.5V may drop the output current due to semiconductor process variations. *4 IO excluded. 3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER Version: A.003 Page 4
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Switching Characteristics (Ta = 25C unless otherwise noted)
CHARACTERISTIC Propagation Delay (`L' to `H') Propagation Delay (`H' to `L') Output Current Rise Time EN-to-OUT (Driver On) EN-to-OUT (Driver Off) SYMBOL tpLH CONDITION MIN. TYP. 65 MAX. UNIT
VIH = 5 V VIL = 0 V
tpHL
REXT = 1 VCC = 12 V VL = 5 V
65
ns
tor
50
Output Current Fall Time
tof
CL = 13 pF
60
Transient Characteristics
VEN IOUT
IOUT
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 5
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Constant-Current Output
Constant-current value of each output channel is set by an external resistor connected between the REXT(R, G, B) pin and GND individually. Varying the resistor value can adjust the current up to 500mA. Notice that the output current is a little increasing or decreasing until the device temperature and ambient temperature are balanced. The maximum power dissipation of the determined external resistor should be large enough than the actual power consumption: 0.5(V ) x Iout ( A) need to be considered. Approximate output current value can be calculated by following equation:
Output Current as a Function of REXT value
550 500 450 400 350 300 250 200 150 100 50 0 0 1 2 3 4 5 6 7 8 9 10 11
Vout = 1.0 V
Iout ( mA )
REXT( )
Output Current as a Function of Output Voltage
600 500
Iout ( mA )
400 300 200 100 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
Vout ( Volt )
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 6
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Alarm Function
It can detect the operating status by connecting a pull-high resistor to the open-drain ALARM pin. The ALARM pin is kept `H' for normal conditions, and shifted to `L' if there is any failure like LED open, overheating or both occurrence. User can determine the different status from the truth table below:
ALARM
H HL HL HL HL
ENR
don't care H L L L
ENG
don't care L H L L
ENB
don't care L L H L
Status
Normal Operation OUTR LED Open or Thermal issue OUTG LED Open or Thermal issue OUTB LED Open or Thermal issue Thermal Alarm or Shutdown
Thermal Alarm and Shutdown
During operation, when the junction temperature of the IC will reach about 110, the ALARM pin will shift to low level and produce a warning signal. Suggested cooling measures is to start the fan, lower the output currents and etc. If no cooling measures were activated, the junction temperature might continue to rise. Once it reaches approximately above 180, it will cause the driver to shutdown all the outputs. Basically, the IC will cool down and return to the safe operating temperature which is approximately below 110. The ALARM pin will reset to high level, disable the warning, and restart all the outputs at the same time. Operation in the thermal situation for a long time may cause chip damage permanently.
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 7
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
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 power 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 operating temperature can be refer to the figure below:
Tj(max)=150 C
3.5 Power Dissipation Pd(W) 3 2.5 2 1.5 1 0.5 0 0
TSSOP16EX
Rth(TSSOP16EX)=38 C/Watt Rth(SOP16EX)=46 C/Watt
SOP16EX
20
40
60
80
100
Ambient Temperature Ta()
Based on the Pd(max), the maximum allowable voltage of output terminal can be determined by the following equation:
VoutR x IoutR x DutyR + VoutG x IoutG x DutyG + VoutB x IoutB x DutyB < Pd(max)(W)- VCC(V) x IDD(A)
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 8
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Typical Application
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 9
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Typical Application
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 10
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Typical Application
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 11
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Package Outline Dimension
SOP16 (exposed pad)
SOP16(EP)-150mil SYMBOLS A A1 A2 b c D E e H L 5.791 0.406 0 PAD SIZE1 E1 D1 1.930 3.658 9.804 3.810 MIN. 1.346 0.051 1.245 TYP. -
mm MAX. 1.753 0.152 1.651
0.406 BSC 0.203 BSC 1.270 BSC (95x18E) 2.413 4.572 6.198 1.270 8 10.008 3.988
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 12
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Package Outline Dimension
TSSOP16 (exposed pad)
16 9
D1
E1
1 e b
8
D
S 0.25mm
A2
A
GAUGE PLANE SEATING PLANE
0.05
A1
L L1
TSSOP16(EP) SYMBOLS A A1 A2 b D E1 E e L1 L S PAD SIZE E2 D1 0.450 0.200 0 MIN. 0.000 0.800 0.190 4.900 4.300
mm TYP. 1.000 5.000 4.400 6.400 TYP 0.650 TYP 1.000 REF 0.600 0.750 8 MAX. 1.200 0.150 1.050 0.300 5.100 4.500
(118x11E) 3.000 3.000
2.400 2.400
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
E2
E
Page 13
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
Product Ordering Information
Part Number
Package Type
Number / Weight ( typ.) Tube / Tray Reel ( Box included )
2,500pcs / Reel 0.97kg 5% 2,500pcs / Reel 0.74kg 5%
DD313-SOP
SOP16-150-0.05
50pcs / Tube 0.017kg 5% 96pcs / Tube 0.014kg 5%
DD313-TSSOP
TSSOP16-173-0.65
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 14
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313-SOP Package and Weight4 Boxes Set
SOP16 - 150 - 0.05
IC
SOP 50 pcs ICs per Tube
Tube
53cm
Box
17cm 10cm
100 Tubes per Box
61cm
Carton
35cm 24cm
4 Boxes per Carton
64cm
Weight
Item 1 2 3 4 Description 50 pcs DD313-SOP per Tube Net Weight of one Box Net Weight of one Carton Per Carton Set ( 4 Boxes, 20,000 pcs ) Weight ( Kg ) 0.0175% 0.405% 1.245% 9.645%
Version: A.003 Page 15
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313-SOP Package and Weight6 Boxes Set
SOP16 - 150 - 0.05 IC
SOP 50 pcs ICs per Tube
Tube
53cm
Box
17cm 10cm
100 Tubes per Box
61cm
Carton
35cm 34cm
6 Boxes per Carton
64cm
Weight
Item 1 2 3 4 Description 50 pcs DD313-SOP per Tube Net Weight of one Box Net Weight of one Carton Per Carton Set ( 6 Boxes, 30,000 pcs ) Weight ( Kg ) 0.0175% 0.405% 1.445% 14.045%
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 16
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SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313-SOP Package and Weight
SOP16 - 150 - 0.05 IC
SOP 2,500pcs ICs per Reel
Reel
1 Reel per Box
35cm
Box
35cm 5cm
36cm
5 Boxes per Carton
Carton
29cm 37cm
38cm
Weight
Item 1 2 3 4 Description 2,500 pcs DD313-SOP per Reel Net Weight of one Box Net Weight of one Carton Per Carton Set ( 5 Boxes, 12,500 pcs ) Weight (Kg) 0.975% 0.245% 0.905% 6.955%
Version: A.003 Page 17
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313-TSSOP Package and Weight4 Boxes Set
TSSOP - 173 - 0.65 IC
TSSOP 96 pcs ICs per Tube
Tube
53cm
Box
17cm 10cm
100 Tubes per Box
61cm
Carton
35cm 24cm
4 Boxes per Carton
64cm
Weight
Item 1 2 3 4 Description 96 pcs DD313-TSSOP per Tube Net Weight of one Box Net Weight of one Carton Per Carton Set ( 4 Boxes, 38,400 pcs ) Weight ( Kg ) 0.0145% 0.405% 1.245% 8.445%
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 18
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313-TSSOP Package and Weight6 Boxes Set
TSSOP - 173 - 0.65 IC
TSSOP 96 pcs ICs per Tube
Tube
53cm
Box
17cm 10cm
100 Tubes per Box
61cm
Carton
35cm 34cm
6 Boxes per Carton
64cm
Weight
Item 1 2 3 4 Description 96 pcs DD313-TSSOP per Tube Net Weight of one Box Net Weight of one Carton Per Carton Set ( 6 Boxes, 57,600 pcs ) Weight ( Kg ) 0.0145% 0.405% 1.445% 12.245%
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 19
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
DD313-TSSOP Package and Weight
TSSOP16 - 173 - 0.65 IC
TSSOP
Reel
2,500pcs ICs per Reel
1 Reel per Box
35cm
Box
35cm 5cm
36cm
5 Boxes per Carton
Carton
29cm 37cm
38cm
Weight
Item 1 2 3 4 Description 2,500 pcs DD313-TSSOP per Reel Net Weight of one Box Net Weight of one Carton Per Carton Set ( 5 Boxes, 12,500 pcs ) Weight (Kg) 0.745% 0.245% 0.905% 5.805%
Version: A.003 Page 20
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

SILICON TOUCH TECHNOLOGY INC.
9 7 1 9-7F-1, Prosperity Road, Hsin-Chu, Taiwan, R.O.C. Tel886-3-5645656 Fax886-3-5645626
DD313
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, aerospace machinery, nuclear power control systems, disaster/crime-prevention equipment 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 responsibility and indemnify. Silicon 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.
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
Version: A.003
Page 21
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