ULN2803A The Toshiba ULN2803A is an 8-channel high-gain Darlington array driver IC. It offers high output voltage and current capabilities, suitable for driving various loads.
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ULN2803A

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Mfr Name: Toshiba
Toshiba
The Toshiba ULN2803A is an 8-channel high-gain Darlington array driver IC. It offers high output voltage and current capabilities, suitable for driving various loads.
✓ Total Stock: 2 pcs

ULN2803A Available from 1 distributor

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ULN2803A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Halogen Free
Storage Temperature

ULN2803A Description

Short technical summary and product information.

The ULN2803A from Toshiba is a versatile Darlington array driver IC featuring 8 NPN Darlington pairs. Each pair is equipped with a 2.7KΩ series resistor, ensuring compatibility with TTL and 5V CMOS logic levels without requiring buffer circuits.

 

This device is designed for high-voltage and high-current applications, capable of sinking up to 500mA per channel with a withstand voltage of 50V. It includes integrated clamp diodes for switching inductive loads, providing protection and simplifying circuit design.

 

The ULN2803A is available in DIP and SOP packages, supporting through-hole mounting. Its wide operating voltage range and direct compatibility with logic devices make it suitable for applications such as relay drivers, clamp drivers, stepper motor drivers, and DC brushless motor drivers.

ULN2803A Quick Information

Product Type: Darlington Array Driver IC
Canonical Name: ULN2803A Darlington Array Driver IC
Subcategory: Bipolar Transistor Arrays

ULN2803A Compliance

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

ULN2803A Features

  • 8-channel high-gain Darlington array
  • High output voltage up to 50V
  • High output current up to 500mA
  • Compatible with TTL and CMOS logic
  • Integrated clamp diodes for inductive loads

ULN2803A Applications

  • Relay driver applications
  • Stepper motor driver circuits
  • Solenoid and magnet valve control
  • DC brushless motor drivers
  • High-current load interfacing

ULN2803A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ULN2803A?

The input voltage range is -0.5 V to 30 V, and the output voltage range is -0.5 V to 50 V.

What packages are available for the ULN2803A?

The ULN2803A is available in DIP-18-300-2.54 (through-hole) and SOP-18-375-1.27 (surface-mount) packages.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What is the maximum output current per channel?

The maximum output current is 500 mA per channel.

What are the switching speed specifications?

The turn-on delay and turn-off delay are both 1.0 µs maximum under test conditions of 0.5 VI to 0.5 V0.

Does the ULN2803A have built-in clamp diodes?

Yes, it has integrated clamp diodes with a maximum reverse voltage of 55 V and a maximum forward current of 25 mA.

ULN2803A Alternate Parts

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ULN2003A
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The ULN2003A is a 7-channel high-voltage, high-current Darlington array driver IC from Motorola Semiconductor. It features an open-collector output and is compatible with TTL and CMOS logic.
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