The ULN2003 Stepper Motor Driver IC (DIP) is a powerful and widely used Darlington transistor array designed to drive inductive loads such as stepper motors, relays, solenoids, and LEDs. It contains seven open-collector Darlington pairs with high voltage and current handling capability, making it ideal for controlling multiple loads directly from microcontrollers and logic circuits.
With its ability to sink up to 500mA per channel and withstand up to 50V, the ULN2003 provides reliable performance in motor driver and switching applications. Its standard DIP package makes it easy to use on breadboards and PCBs, making it highly popular among students, hobbyists, and engineers.
Key Features:
- 7 Darlington transistor arrays in one IC
- Each channel supports up to 500mA and 50V
- High voltage and current gain for efficient load driving
- Built-in freewheeling diodes for inductive load protection
- Open-collector outputs compatible with TTL and CMOS logic
- Standard DIP package for easy prototyping and circuit design
Applications:
- Stepper motor driver circuits
- Relay and solenoid drivers
- LED and display drivers
- High current and high voltage switching
- Interfacing microcontrollers with inductive loads
- Robotics, automation, and embedded projects
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