ULN2003A

Description

The ULN2003A is a versatile 7-channel Darlington transistor array designed for interfacing low-level logic to high-voltage, high-current loads. Each channel can handle up to 500mA and withstand voltages up to 50V, making it perfect for driving relays, lamps, stepper motors, and other inductive loads. Integrated clamp diodes provide protection against back-EMF, ensuring reliable operation in inductive load applications. Compatible with TTL and CMOS logic levels, the ULN2003A is widely used in automation, robotics, and motor control projects.

Key Features:

• 7 Darlington transistor channels

• 500mA per channel, up to 50V output capability

• Built-in clamp diodes for inductive load protection

• TTL/CMOS logic compatibility

• Ideal for relays, lamps, and stepper motor driving

• Widely used in automation, robotics, and control systems