Description
The ULN2003 Motor Driver is a versatile and essential component for controlling high-current loads like stepper motors, relays, and solenoids with a low-power microcontroller. At its heart, the ULN2003 integrates seven high-voltage, high-current Darlington transistor arrays, making it incredibly easy to drive inductive loads that a standard logic circuit cannot handle directly .
This board is particularly well-known for its seamless compatibility with the popular 28BYJ-48 stepper motor, featuring a standard XH-5P socket for a direct plug-and-play connection . It is an ideal choice for beginners and professionals alike, simplifying the process of adding motion or switching capability to projects based on Arduino, PIC, or Raspberry Pi platforms . The module also includes built-in freewheeling diodes for protection against back-EMF from inductive loads, and status LEDs to indicate the active output channel for easy troubleshooting
Product Specifications
| Specification | Detail |
|---|---|
| Model | ULN2003 Driver Module |
| Chip | ULN2003A Darlington Transistor Array |
| Channels | 7 Outputs |
| Supply Voltage | 5V to 12V DC |
| Output Current (Per Channel) | 500mA (Max) |
| Output Voltage | 50V (Max) |
| Compatibility | TTL / CMOS Logic (5V) |
| Dimensions | Approx. 35 x 32 x 10 mm (L x W x H) |
| Weight | Approx. 22 grams (for the driver board module) |
| Features | Built-in freewheeling diodes, 4-way signal indicator, XH-5P socket |
