ULN200x, ULQ200x High-Voltage, High-Current Darlington Transistor Arrays

1 Features

• 500mA-rated collector current (single output)

• High-voltage outputs: 50V

• Output clamp diodes

• Inputs compatible with various types of logic

• Relay-driver applications

2 Applications

• Relay Drivers

• Stepper and DC Brushed Motor Drivers

• Lamp Drivers

• Display Drivers (LED and Gas Discharge)

• Line Drivers

• Logic Buffers

3 Description

The ULx200xA devices 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 500mA. 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 100V (otherwise interchangeable)

versions of the ULx2003A devices, see the SLRS023

data sheet for the SN75468 and SN75469 devices.

The ULN2002A device is designed specifically for use

with 14V to 25V 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 ULx2003A

devices have a 2.7kΩ series base resistor for each

Darlington pair for operation directly with TTL or 5V

CMOS devices.

The ULx2004A devices have a 10.5kΩ series base

resistor to allow operation directly from CMOS

devices that use supply voltages of 6V to 15V. The

required input current of the ULx2004A device is

below that of the ULx2003A devices, and the required

voltage is less than that required by the ULN2002A

device.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

ULN200xAD

SOIC (16)

9.90mm × 3.91mm

ULN200xAN

PDIP (16)

19.30mm × 6.35mm

ULN200xANS

SOP (16)

10.30mm × 5.30mm

ULN200xAPW

TSSOP (16)

5.00mm × 4.40mm

ULN2003ADYY

SOT (16)

4.20mm × 2.00mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

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

Simplified Block Diagram

ULN2002A, ULN2003A, ULN2003AI

ULQ2003A, ULN2004A, ULQ2004A

SLRS027S – DECEMBER 1976 – REVISED JUNE 2024

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.