ꢀ ꢁꢂ ꢃꢄꢅ ꢆꢇ
ꢈꢇꢉ ꢁꢊ ꢂꢋ ꢌꢍ ꢂ ꢌ ꢉꢇꢂꢎ ꢊꢎꢌꢍ ꢉ ꢇ ꢉꢉ ꢇꢏ
SLRS049E − FEBRUARY1997 − REVISED JULY 2006
DW OR N PACKAGE
(TOP VIEW)
D
500-mA Rated Collector Current (Single
Output)
D
D
D
High-Voltage Outputs . . . 50 V
Output Clamp Diodes
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
1B
2B
3B
4B
5B
6B
7B
8B
1C
2C
3C
4C
5C
6C
7C
8C
COM
Inputs Compatible With Various Types of
Logic
D
Relay Driver Applications
D
Compatible with ULN2800A Series
description/ordering information
GND
The ULN2803A is a high-voltage, high-current
Darlington transistor array. The device 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 each Darlington pair is
500 mA. The Darlington pairs may be connected
in parallel for higher current capability.
Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line
drivers, and logic buffers. The ULN2803A has a 2.7-kΩseries base resistor for each Darlington pair for operation
directly with TTL or 5-V CMOS devices.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP (N)
Tube of 20
Tube of 40
Reel of 2000
ULN2803AN
ULN2803AN
−40°C to 85°C
ULN2803ADW
SOIC (DW)
ULN2803A
ULN2803ADWR
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2006, Texas Instruments Incorporated
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