UNISONIC TECHNOLOGIES CO.
, LTD
ULN2008 Preliminary LINEAR INTEGRATED CIRCUIT
DRIVER CIRCUIT SPECIAL
PURPOSE FOR MICROWAVE
OVEN
DESCRIPTION
UTC ULN2008 include 1ch condenser buzzer driver, 4ch relay
driver, safety circuit and gate signal detection circuit. The 4ch relay SOP-16
driver include: 1ch independent Darlington Transistor driver, 1ch
main relay driver, 2ch relay driver controlled by safety circuit.
Current capability of each channel driver is 100mA. Output clamp
diode is inserted in each channel to drive inductive load.
FEATURES
* Output current (single output): 100mA (MAX.)
* High sustaining voltage output: 50V (MIN.)
* Output clamp diodes
* TTL/CMOS logic level is compatible.
ORDERING INFORMATION
Ordering Number
Package Packing
Lead Free Halogen Free
ULN2008L-S16-R ULN2008G-S16-R SOP-16 Tape Reel
MARKING
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ULN2008 Preliminary LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO. PIN NAME DESCRIPTION
1 Y Switch of C4/C5/C6
2 DOOR Signal of door
3 Cap1 Signal input terminal
4 B6 Relay drive Input 6
5 B5 Relay drive Input 5
6 B1 Relay drive Input 1
7 BUZ Buzzer drive input
8 GND Ground
9 VDD Supply power
10 BUZZER Buzzer drive output
11 C1 Relay drive output 1
12 C3 Relay drive output 3
13 C5 Relay drive output 5
14 C6 Relay drive output 6
15 +5V 5V power supply
16 Cap2 Connect capacitor for signal rectification
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ULN2008 Preliminary LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
C6 C5 C3 C1 BUZZER
VDD
2.7K 2.7K 2.7K
BUZ
2K 2K 7.2K 7.2K 7.2K
4.7K
3K 3K 4.7K
2.7K 3K
GND
7.2K +5V 330 10K
10K
3K 10K
2K
1K
B6 Y DOOR B5 Cap2 Cap1 +5V B1
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ULN2008 Preliminary LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified.)
PARAMETER SYMBOL RATINGS UNIT
VDD Supply VDD 50 V
Input Terminal Voltage VI 30 V
Driver Output Sustaining Voltage VCE 50 V
Peak Current Of Each Collector Output ICP 100 mA
Clamp Diode Forward Peak Current IOK 100 mA
TA=25°C 1.5 W
Power Dissipation PD
TA=85°C 0.8 W
Operating Junction Temperature TJ +150 °C
Storage Temperature TSTG -65 ~ +150 °C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS (TA=25°C, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Sustaining Voltage VCE (SUS) 0 50 V
Output Current IOUT TA=+85°C 100 mA/ch
Clamp Diode Reverse Voltage VR 50 V
Clamp Diode Forward Current IF 70 mA
Input Voltage VIN 0 12 V
Input Voltage (Output On) VIN (ON) IOUT=100mA 5 12 V
Input Voltage (Output Off) VIN (OFF) 0 0.7 V
Operating Thermal Range TA -40 +85 °C
Junction Temperature TJ -40 +125 °C
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified.)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
BUZ/B1 2.5
Input Current II VI=5V, IC=60mA mA
B5/B6 1.9
VI=5V, IC=100mA BUZZER/C1 0.9
Collector−Emitter Saturation VI=5V, IC=100mA C3 1.03
VCE(SAT) V
Voltage VI=5V, IC=80mA 1.2
C5/C6
VI=5V, IC=100mA 1.7
Clamp Diode Forward Voltage VF IF=70mA 1.1 1.4 V
Leak Current Of Collector (Off) IC_OFF VCE=50V, II=0 50 μA
Output Sustaining Voltage VCE VCE=50V, II=0 50 V
Clamp Diode Reverse Voltage IR VR=50V 50 V
Clamp Diode Reverse Current IR VR=50V 50 μA
Gate Signal Output High Level VHDOOR 4.5 V
Gate Signal Output Low Level VLDOOR 1.0 V
Cap2: 10uF cap to GND,
Cap2 Terminal Output Level VCap2 Cap1: 2kHz, 50% duty square 2.5 V
wave input Via 1uF cap
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ULN2008 Preliminary LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
To realize 1ch condenser buzzer driver, 1ch main relay driver, 1ch independent Darlington Transistor driver, 2ch
relay driver controlled by safety circuit.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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