The ULN2803A is a high-voltage, high-current Darlington transistor array IC, designed to drive high-current loads such as relays, motors, and lamps, using low-voltage logic signals. It contains eight Darlington pairs, each capable of handling up to 500mA of continuous current per channel, and provides excellent switching performance for driving inductive and resistive loads. The IC is often used in applications like industrial control systems, automation, and automotive electronics.
The ULN2803A is built with built-in flyback diodes to protect against voltage spikes generated when switching inductive loads.
Eight Darlington Pairs: Allows the control of up to eight individual high-power outputs.
High-Current Capability: Each output can handle up to 500mA continuous current and 1A peak current.
Built-In Flyback Diodes: Protects against voltage spikes when switching inductive loads.
Low Saturation Voltage: Ensures efficient switching with minimal power loss.
Low Power Dissipation: Suitable for energy-efficient systems.
Versatile Applications: Ideal for driving relays, stepper motors, LEDs, and other high-current devices.
Relay drivers in control systems and automation.
Motor drivers for controlling small DC motors in robotics or appliances.
Lighting control in automotive or industrial systems.
Switching high-power resistive or inductive loads.
Automated equipment where high-current switching is required.
1 x ULN2803A Darlington Transistor Array IC.
Product specifications, features, and design may change over time due to product updates or improvements.
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