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ULN2069B Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
ULN2069BST/SPRAGUE1062Yes

ULN2069B is a high-voltage, high-current Darlington transistor array manufactured by STMicroelectronics (ST) and formerly by Sprague.

The ULN2069B is a high-voltage, high-current Darlington transistor array manufactured by STMicroelectronics (ST) and formerly by Sprague.

Specifications:

  • Configuration: 4-channel Darlington array
  • Output Current (per channel): 1.5A (peak)
  • Output Voltage (Max): 50V
  • Input Voltage (Logic Compatible): 5V TTL/CMOS
  • Input Current (per channel): ~2.7mA
  • Saturation Voltage (Vce(sat)): ~1.1V (typical at 350mA)
  • Integrated Freewheeling Diodes: Yes (for inductive load protection)
  • Package: 16-pin DIP (Dual In-line Package)

Descriptions and Features:

  • Designed for driving high-current loads such as relays, solenoids, lamps, and stepper motors.
  • Each channel consists of a Darlington pair with common-emitter configuration.
  • Includes built-in suppression diodes for inductive kickback protection.
  • TTL/CMOS compatible inputs for easy interfacing with microcontrollers and logic circuits.
  • High-voltage and high-current capability suitable for industrial and automotive applications.
  • Robust construction for reliable switching performance.

This device is commonly used in applications requiring multiple high-power switching operations with minimal external components.

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