ULN2066B – STMicroelectronics

The STMicroelectronics ULN2066B is a high-voltage, high-current Darlington transistor array specifically configured as a dual full-bridge driver. Each bridge can independently control inductive loads, such as relays, solenoids, and DC motors, with a maximum output voltage rating of 80V. It handles a substantial output current of 1.5A per channel, allowing for direct driving of larger loads without additional amplification. The ULN2066B is provided in a through-hole 16-pin DIP package, facilitating easy prototyping and integration into existing designs. Its robust design allows operation across a wide operating temperature range of –20°C to 85°C. The integrated suppression diodes protect the driver from inductive kickback, simplifying circuit design and enhancing reliability. It offers a cost-effective solution for applications requiring bidirectional control of high-power devices.