Manufacturer Part Number: ULN2803ADWR Manufacturer / Brand: TI
Part of Description: SoC FPGA ULN2803ADWR Lead Free Status / RoHS Status: table_img Lead free / RoHS Compliant
Ship From: HK/Shen Zhen Shipment Way: DHL/Fedex/TNT/UPS

Product parameters

Mounting StyleSMD/SMT
CoreARM Cortex M4
Program Memory Size1 MB
Package / CaseLQFP-48
Factory Pack Quantity2000
Minimum Operating Temperature– 40 C
Maximum Operating Temperature+ 85 C
Moisture SensitiveYes
Height1.5 mm
Length12.8 mm
Width5.3 mm
Voltage – Supply2V ~ 3.6V

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    The ULN2803ADWR is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments, suitable for various driving applications. Below are some key features and parameters of the ULN2803ADWR:

    Key Features

    • Darlington Transistor Array: Contains 8 NPN Darlington pairs, providing high gain and high current capability.
    • High Current Drive: Each channel can drive up to 500mA load current.
    • High Voltage Output: Maximum output voltage up to 50V.
    • Integrated Clamp Diodes: Each output channel includes a clamp diode for inductive load protection.
    • TTL/CMOS Compatible Inputs: Wide input voltage range, compatible with standard TTL and CMOS levels.

    Typical Applications

    • Relay Drivers: Suitable for driving multi-channel relays.
    • Lamp and LED Drivers: Used for controlling multiple lamps and LED displays.
    • Motor Drivers: Suitable for driving small motors.
    • Printers and Fax Machines: Used for driving print heads and other actuators.
    • Industrial Control: Suitable for load driving in various industrial control applications.

    Package Type

    The ULN2803ADWR typically comes in an 18-pin SOIC (Small Outline Integrated Circuit) package, offering good thermal performance and a small footprint.

    Electrical Parameters

    • Input Voltage Range: 2V to 30V
    • Output Current Per Channel: Maximum 500mA
    • Maximum Output Voltage: 50V
    • Input Current: 0.93mA per channel


    • High Integration: One chip contains 8 driver channels, saving PCB space.
    • High Reliability: Integrated clamp diode protection, suitable for driving inductive loads.
    • Good Compatibility: Wide input voltage range, compatible with various logic levels.
    • Easy to Use: Standardized packaging and pin layout, simplifying design.