8-Digit Darlington Current Driver
FEATURES
•
•
•
•
•
•
•
8 Darlington Arrays per Package
500 mA Rated Collector Current (Single Output)
Output voltage 50V
Output Clamp Diodes
Input Compatible with Various Types of Logic
Relay-Driver Applications
Input pins placed opposite to output pins to simplify
layout
ULN2803A
SOP-18
APPLICATION
•
•
•
•
•
•
Relay Drivers
Stepper and DC Brushed Motor Drivers
Lamp Drivers
Display Drivers
Line Drivers
Logic Buffers
DIP-18
ORDERING INFORMATION
Device
ULN2803AD
Package
SOP-18
DIP-18
DESCRIPTION
The ULN2803A is monolithic high-voltage, high-current
Darlington transistor arrays. Each consists of eight
NPN Darlington pairs that feature high-voltage outputs
with common-cathode clamp diodes for switching
inductive loads. The collector-current rating of a single
Darlington pair is 500 mA. The Darlington pairs may
be paralleled for higher current capability. Applications
include relay drivers, hammer drivers, lamp drivers,
display drivers (LED and gas discharge), line drivers,
and logic buffers.
ULN2803AN
ABSOLUTE MAXIMUM RATINGS
(Note 1)
CHARACTERISTIC
Output Voltage
Input Voltage
(Note 2)
SYMBOL
V
O
V
I
I
C
I
OK
I
E
T
J
MIN.
-
-
-
-
-
-
MAX.
50
30
500
500
2.5
150
UNIT
V
V
mA
mA
A
°C
Peak Collector Current
Output Clamp Current
Total Emitter-Terminal Current
Maximum Junction Temperature
Nov. 2019 – R1.0.1
1/8
HTC
8-Digit Darlington Current Driver
RECOMMENDED OPERATIONG CONDITIONS
CHARACTERISTIC
Output Voltage
Junction Temperature
Operating Free-Air Temperature Range
SYMBOL
V
O
T
J
T
A
MIN.
-
-40
-40
ULN2803A
MAX.
50
125
85
UNIT
V
°C
°C
ORDERING INFORMATION
Package
SOP-18
DIP-18
Order No.
ULN2803AD
ULN2803AN
Description
8-Digit Darlington Current Driver
8-Digit Darlington Current Driver
Package Marking
ULN2803A
ULN2803A
Status
Active
Active
Nov. 2019 – R1.0.1
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HTC
8-Digit Darlington Current Driver
PIN CONFIGURATION
ULN2803A
SOP-18 / DIP-18
PIN DESCRIPTION
Pin No.
Pin Name
SOP-18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
DIP-18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1B
2B
3B
4B
Channel 1 through 8 Darlington Base Input
5B
6B
7B
8B
E
COM
8C
7C
6C
5C
Channel 1 through 8 Darlington Collector Output
4C
3C
2C
1C
Common Cathode Node for Flyback Diodes
Common Emitter shared by All Channels
Pin Function
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HTC
8-Digit Darlington Current Driver
PIN CONNECTION DIAGRAM
ULN2803A
BLOCK DIAGRAM
D2
Input
B
R1
VT1
VT2
R2
D1
R3
D3
COM
Output
C
E
R1 : Resistor
2.7kΩ
R2 : Resistor
7.2 kΩ
R3 : Resistor
3.0 kΩ
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HTC
8-Digit Darlington Current Driver
ELECTRICAL CHARACTERISTICS
(Note 3)
Limits in standard typeface are for T
J
=25°C, unless otherwise specified.
PARAMETER
SYMBOL
TEST
FIGURE
TEST CONDITION
I
C
=200mA
ON-State Input Voltage
V
I(ON)
Fig.1.
V
CE
=2V
I
C
=250mA
I
C
=300mA
I
I
=250µA, I
C
=100mA
Collector-Emitter
Saturation Voltage
V
CE(SAT)
Fig. 2.
I
I
=350µA, I
C
=200mA
I
I
=500µA, I
C
=350mA
V
CE
=50V,
Output Leakage Current
I
CEX
Fig. 3.
Fig. 4.
V
CE
=50V,
T
A
=85°C
I
F
=350mA
V
CE
=50V, I
C
=500µA, T
A
=85°C
V
I
=3.85V
V
R
=50V
I
R
Fig. 8.
V
R
=50V, T
A
=85°C
t
PLH
t
PHL
-
-
0.5V
I
to 0.5V
O
0.5V
I
to 0.5V
O
-
-
-
-
0.25
0.25
I
I
=0mA
I
I
=0mA
V
I
=1V
MIN.
-
-
-
-
-
-
-
-
-
-
50
-
-
TYP.
-
-
-
0.9
1.0
1.2
-
-
-
1.7
65
-
-
ULN2803A
MAX.
2.4
2.7
3.0
1.1
1.3
1.6
50
100
500
2
-
1.35
50
UNIT
V
V
µA
Clamp Forward Voltage
Off-State Input Current
Input Current
Clamp Diode
Leakage Current
Turn-On Propagation
Delay Time
Turn-Off Propagation
Delay Time
VF
I
I(OFF)
I
I(ON)
Fig. 5.
Fig. 6.
Fig. 7.
V
µA
mA
µA
100
1
µs
1
Note 1. Stresses beyond those listed under
Absolute Maximum Ratings
may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under
Recommended Operating Conditions
is not implied. Exposure to absolute-maximum-rated conditions for
extended periods may affect device reliability.
Note 2. All voltage values are with respect to the emitter/substrate terminal E, unless otherwise noted.
Note 3. The device is not guaranteed to function outside its operating ratings.
Nov. 2019 – R1.0.1
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HTC
嵌入式系统
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