ULN2001A, ULN2002A, ULN2003A, ULN2004A, ULQ2003A, ULQ2004A,
HIGH-VOLTAGE HIGH-CURRENT DARLINGTON
The ULN2001A is obsolete
and is no longer supplied.
TRANSISTOR ARRAY
SLRS027D – DECEMBER 1976 – REVISED JULY 2002
ULN2001A . . . D OR N PACKAGE
ULN2002A . . . N PACKAGE
ULN2003A, ULN2004A . . . D, N, OR NS PACKAGE
ULQ2003A, ULQ2004A . . . D PACKAGE
(TOP VIEW)
500-mA Rated Collector Current
(Single Output)
High-Voltage Outputs . . . 50 V
Output Clamp Diodes
Inputs Compatible With Various Types of
Logic
1B
2B
3B
4B
5B
6B
7B
E
1C
2C
3C
4C
5C
6C
7C
COM
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Relay Driver Applications
Designed to Be Interchangeable With
Sprague ULN2001A Series
Package Options Include Plastic Small
Outline (D, NS) Packages, and Plastic DIP
(N)
description
The ULN2001A, ULN2002A, ULN2003A, ULN2004A, ULQ2003A, and ULQ2004A are high-voltage,
high-current Darlington transistor arrays. Each consists of seven 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 can 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. For 100-V (otherwise interchangeable) versions of the ULN2003A and ULN2004A,
see the SN75468 and SN75469, respectively.
The ULN2001A is a general-purpose array and can be used with TTL and CMOS technologies. The ULN2002A
is designed specifically for use with 14-V to 25-V PMOS devices. Each input of this device has a Zener diode
and resistor in series to control the input current to a safe limit. The ULN2003A and ULQ2003A have a 2.7-kΩ
series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices. The
ULN2004A and ULQ2004A have a 10.5-kΩ series base resistor to allow operation directly from CMOS devices
that use supply voltages of 6 V to 15 V. The required input current of the ULN/ULQ2004A is below that of the
ULN/ULQ2003A, and the required voltage is less than that required by the ULN2002A.
AVAILABLE OPTIONS
PACKAGES
T
A
SMALL OUTLINE
(D, NS)
PLASTIC DIP
(N)
–
ULN2002AN
ULN2003AN
ULN2003AD
ULN2003ANS
–20°C to 70°C
–40°C to 85°C
ULN2004AD
ULN2004ANS
ULN2004AN
ULQ2003AD
ULQ2004AD
–
ULQ2004AN
The D package is available taped and reeled. Add the suffix R to
device type (e.g., ULN2003ADR). The NS package is only available
taped and reeled.
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.
Copyright 2002, Texas Instruments Incorporated
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.
1
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