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ULN2803 Darlington transistor module
₦2,800.00
Description: The ULN2803 Darlington Transistor Module is a versatile integrated circuit featuring eight Darlington pairs designed for driving high-current loads. It is commonly used for interfacing with high-current devices such as relays, motors, and solenoids in various electronic and control applications. This module simplifies the task of switching high-current loads while providing protection against voltage spikes and overload conditions.
Key Features:
- Eight Darlington transistor pairs in a single IC
- High current capability (up to 500 mA per channel)
- High voltage capability (up to 50V)
- Built-in flyback diodes for inductive load protection
- Compact DIP-18 package for easy integration
- Directly interface with logic level signals
Technical Specifications:
- Number of Channels: 8
- Maximum Output Current: 500 mA per channel
- Maximum Output Voltage: 50V
- Input Voltage: 5V to 12V (logic level)
- Input Current: 1.35 mA (typical)
- Flyback Diode: Integrated for each channel
- Package Type: DIP-18
Applications:
- Relay drivers
- Motor control
- Solenoid actuators
- LED arrays
- High-current switching in various electronic projects
Datasheet: For detailed technical information, refer to the ULN2803 Datasheet.
In stock
1. 500-mA-Rated Collector Current
(Single Output)High-Voltage Outputs: 50 VOutput Clamp DiodesInputs Compatible With Various Types of LogicRelay-Driver ApplicationsCompatible with ULN2800A Series
2. ApplicationsRelay DriversHammer DriversLamp DriversDisplay Drivers (LED and Gas Discharge)Line DriversLogic Buffers
3. DescriptionThe ULN2803A device is a high-voltage, high-current Darlington transistor array. The device consists of eight NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. The Darlington pairs may be connected in parallel for higher current capability.
Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. The ULN2803A device has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.
