ULN2002A . . . N PACKAGE

ULN2003A . . . D, N, NS, OR PW PACKAGE

ULN2004A . . . D, N, OR NS PACKAGE

ULQ2003A, ULQ2004A . . . D OR N PACKAGE

(TOP VIEW)

1B

1

16

2B

2

15

3B

3

14

4B

4

13

5B

5

12

6B

6

11

7B

7

10

E

8

9

1C

2C

3C

4C

5C

6C

7C

COM

ULN2002A, ULN2003A, ULN2003AI, ULN2004A

ULQ2003A, ULQ2004A

www.ti.com

SLRS027M – DECEMBER 1976 – REVISED FEBRUARY 2013

HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON TRANSISTOR ARRAYS

Check for Samples: ULN2002A, ULN2003A, ULN2003AI, ULN2004A, ULQ2003A, ULQ2004A

1

FEATURES

•

500-mA-Rated Collector Current (Single

Output)

•

High-Voltage Outputs: 50 V

•

Output Clamp Diodes

•

Inputs Compatible With Various Types of

Logic

•

Relay-Driver Applications

DESCRIPTION

The ULN2002A, ULN2003A, ULN2003AI, 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 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-k

Ω 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-k

Ω 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.

1

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.

Copyright © 1976–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.