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Description
Octal NPN Darlington array used to interface logic ciruits (i.e., microcontroller) to high-voltage, high-current devices like lamps, relays, and solenoids. The ULN2803A is capable of driving 500 mA into a single channel, up to 250 mA per channel with four channels active, and up to 125 mA with all eight channels active. ULN2803A outputs use clamp diodes for transient suppression to protect low-power microcontroller circuitry.

Downloads
• ULN2803 Documentation (PDF)