The ULN2068B, manufactured by STMicroelectronics, is a high-voltage, high-current Darlington transistor array. This robust component is designed to interface between low-level logic circuitry and multiple peripheral power loads. The ULN2068B features four pairs of Darlington transistors, each capable of driving a wide range of loads including solenoids, relays, DC motors, LED displays, filament lamps, and thermal print heads.

Key Features

• High-Voltage Outputs: With an output voltage rating of 50V, the ULN2068B can handle a variety of high-voltage applications.
• High-Current Capability: Each Darlington pair can deliver a continuous current of 1.5A, making this component suitable for driving a wide range of high-power loads.
• Integrated Suppression Diodes: The array includes integrated flyback diodes for inductive load transient suppression, enhancing the reliability of the device in such applications.
• Output Clamp Diodes: Inputs and outputs are equipped with clamp diodes for protection against transient voltage spikes, ensuring the safety and longevity of the device and the connected peripherals.
• Direct Interface with TTL and CMOS: The ULN2068B can be directly connected to TTL and CMOS logic ICs without additional interfacing components, simplifying the design and reducing the overall component count.

Applications

The ULN2068B is an incredibly versatile component that can be used in a multitude of applications. It is particularly suitable for driving inductive loads that require high current and/or high voltages. Some of the common applications include:

• Automotive modules
• Control systems
• Motor drivers
• Power management systems
• Printers and office automation machines

Package and Quality

The ULN2068B is available in a 16-pin plastic DIP package, providing a compact solution that is easy to integrate into a wide range of electronic systems. STMicroelectronics ensures high-quality manufacturing standards, with each component being rigorously tested to maintain performance and reliability.