ULN2004A The STMicroelectronics ULN2004A is a high-voltage, high-current Darlington Array featuring seven open-collector Darlington pairs. It is designed for driving a wide range of loads.
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ULN2004A

Available from 5 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics ULN2004A is a high-voltage, high-current Darlington Array featuring seven open-collector Darlington pairs. It is designed for driving a wide range of loads.
✓ Total Stock: 10,595 pcs
$ Price Range: $0.32

ULN2004A Available from 5 distributors

✓ Authorised
✓ Non-Authorised

ULN2004A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Input Type
Interface
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Output Voltage
Ratio
Supplier Device Package
Supplier Package
Switch Type
Voltage

ULN2004A Description

Short technical summary and product information.

The ULN2004A from STMicroelectronics is a versatile Darlington Array IC containing seven open-collector Darlington pairs with common emitters. Each channel is rated for 500 mA continuous output current and can handle peak currents of up to 600 mA, with a maximum output voltage of 50 V.

 

This device is suitable for driving various loads such as solenoids, relay coils, DC motors, and LED displays. It features integrated suppression diodes for inductive load driving, simplifying circuit design. The inputs are compatible with common logic families including TTL, CMOS, and PMOS, and are positioned opposite the outputs to facilitate board layout.

 

The ULN2004A is supplied in a standard 16-pin DIP (Dual In-line Package) with through-hole mounting. This package type is common for prototyping and through-hole PCB assemblies. The device operates within a temperature range of -40°C to 85°C (TA).

 

Key electrical characteristics include a typical HFE gain of 1000 and an inverting input configuration. The outputs can be paralleled for applications requiring higher current capacity. Its design makes it a robust choice for interfacing low-logic signals to high-power loads.

ULN2004A Quick Information

Product Type: Darlington Array
Series: ULN2004A
Canonical Name: ULN2004A Darlington Array
Subcategory: Power Distribution Switches, Load Drivers

ULN2004A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ULN2004A Estimated Pricing

Qty Low High
1+ $0.32 $0.32

Estimated market price range - modelled values for guidance only, not live distributor offers.

ULN2004A Features

  • Seven NPN Darlington outputs per package.
  • 500 mA continuous output current per channel.
  • 50 V maximum output voltage.
  • Integrated suppression diodes for inductive loads.
  • TTL/CMOS/PMOS compatible inputs.

ULN2004A Applications

  • Drives solenoids and relay coils.
  • Suitable for DC motor control.
  • Drives LED displays and lamps.
  • Used as high-power buffers.
  • Interfaces logic to high-current loads.

ULN2004A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the output current rating for the ULN2004A?

Each channel of the ULN2004A is rated for 500 mA continuous output current and can withstand peak currents of 600 mA.

What is the maximum output voltage of the ULN2004A?

The ULN2004A has a maximum output voltage rating of 50 V.

What type of package is the ULN2004A supplied in?

The ULN2004A is supplied in a 16-DIP (Dual In-line Package) with through-hole mounting.

What is the operating temperature range for the ULN2004A?

The ULN2004A operates within a temperature range of -40°C to 85°C.

Does the ULN2004A have integrated suppression diodes?

Yes, the ULN2004A includes integrated suppression diodes for inductive load driving.

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