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ULN2003A The ON Semiconductor ULN2003A is a 7-channel Darlington array driver IC designed for high-voltage and high-current applications. It offers a 50V output voltage and 500mA output current per channel.
Mfr Part #:

ULN2003A

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor ULN2003A is a 7-channel Darlington array driver IC designed for high-voltage and high-current applications. It offers a 50V output voltage and 500mA output current per channel.
✓ Total Stock: 75 pcs
$ Price Range: $0.99

ULN2003A Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
Non-Authorised Inventory information
50 pcs
On Request
50 pcs On Request 1 On Request On Request 07+44 On Request On Request
Partservice ✓
Non-Authorised Inventory information
25 pcs
On Request
25 pcs On Request 1 On Request On Request On Request On Request On Request
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ULN2003A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Channels
Halogen Free
Industrial Grade
Input Capacitance
Input Voltage
Operating Temperature
Output Current
Output Voltage
Tape & Reel
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ULN2003A Description

Short technical summary and product information.

The ULN2003A from ON Semiconductor is a high-voltage, high-current Darlington array driver IC. It comprises seven NPN Darlington pairs, each with an open-collector output and a series 2.7kΩ resistor for TTL and CMOS compatibility. This configuration allows direct interfacing with microcontrollers without logic buffers.

 

Key electrical specifications include a wide operating voltage range, a high output voltage capability of up to 50V, and a high output current of up to 500mA per channel. The device also features integrated clamp diodes for switching inductive loads, making it suitable for applications like relay drivers, stepper motor drivers, and DC brushless motor drivers.

 

The ULN2003A is available in a SOP-16 package, designed for surface mounting. Its robust design and versatile features make it a reliable choice for various interface applications requiring the driving of high-power loads from low-power logic signals.

ULN2003A Quick Information

Product Type: Darlington Array Driver IC
Series: ULN2003
Canonical Name: ULN2003A Darlington Array Driver IC
Subcategory: BJT Arrays

ULN2003A Compliance

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

ULN2003A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

ULN2003A Features

  • Seven NPN Darlington pairs integrated.
  • High output voltage up to 50V.
  • High output current up to 500mA.
  • Integrated base and clamp diodes.
  • Compatible with TTL and CMOS logic.

ULN2003A Applications

  • Ideal for relay driver applications.
  • Suitable for stepper motor control.
  • Used in DC brushless motor drivers.
  • Applicable for solenoid drivers.
  • General purpose interface applications.

ULN2003A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of ULN2003A?

-40 to 85°C.

What package is ULN2003A available in?

SOP-16.

What is the input voltage range?

-0.5 to 30 V.

What is the output voltage range?

-0.5 to 50 V.

What is the maximum output current per channel?

500 mA.

How many channels does ULN2003A have?

7 channels.

What are the turn-on and turn-off delays?

1.0 µs typical for both.

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