ULN2803A
DARLINGTON TRANSISTOR ARRAY
SLRS049E − FEBRUARY1997 − REVISED JULY 2006
D
500-mA Rated Collector Current (Single
D
D
D
D
D
Output)
High-Voltage Outputs . . . 50 V
Output Clamp Diodes
Inputs Compatible With Various Types of
Logic
Relay Driver Applications
Compatible with ULN2800A Series
DW OR N PACKAGE
(TOP VIEW)
description/ordering information
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.
1B
2B
3B
4B
5B
6B
7B
8B
GND
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
1C
2C
3C
4C
5C
6C
7C
8C
COM
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-kΩ series base resistor for each Darlington pair for operation
directly with TTL or 5-V CMOS devices.
ORDERING INFORMATION
TA
PDIP (N)
−40 C 85°C
−40°C to 85 C
SOIC (DW)
PACKAGE†
Tube of 20
Tube of 40
Reel of 2000
ORDERABLE
PART NUMBER
ULN2803AN
ULN2803ADW
ULN2803ADWR
TOP-SIDE
MARKING
ULN2803AN
ULN2803A
† 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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2006, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
