7C

6C

5C

4C

3C

2C

1C

COM

7

6

5

4

3

2

1

7B

6B

5B

4B

3B

2B

1B

10

11

12

13

14

15

16

9

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

ULN2003B

SLRS064B – JUNE 2014 – REVISED AUGUST 2016

ULN2003B High-Voltage, High-Current Darlington Transistor Array

1

1 Features

1

•

Greater Than 4x Reduction in Output Leakage

•

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

2 Applications

•

Relay Drivers

•

Lamp Drivers

•

Display Drivers (LED and Gas Discharge)

•

Line Drivers

•

Logic Buffers

3 Description

The ULN2003B device is a high-voltage, high-current

Darlington transistor array. This device 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.

The ULN2003B has a 2.7-k

Ω series base resistor for

each Darlington pair for operation directly with TTL or

CMOS devices.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

ULN2003BN

PDIP (16)

19.30 mm × 6.35 mm

ULN2003BD

SOIC (16)

9.90 mm × 3.91 mm

ULN2003BPW

TSSOP (16)

5.00 mm × 4.40 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Simplified Schematic