ULN2803LW Datasheet PDF – Darlington Array – Allegro

Part Number: ULN2803LW

Function: Darlington Arrays

Package: SOP 18 Pin Type

Manufacturer: Allegro MicroSystems


ULN2803LW Darlington



The ULN2803LW is High-voltage, High-current Darlington Arrays.

Featuring continuous load current ratings to 500 mA for each of the drivers, the Series ULN28xxA/LW and ULQ28xxA/LW highvoltage, high-current Darlington arrays are ideally suited for interfacing between low-level logic circuitry and multiple peripheral power loads.

Typical power loads totaling over 260 W (350 mA x 8, 95 V) can be controlled at an appropriate duty cycle depending on ambient temperature and number of drivers turned on simultaneously. Typical loads include relays, solenoids, stepping motors, magnetic print hammers, multiplexed LED and incandescent displays, and heaters. All devices feature open-collector outputs with integral clamp diodes.

The ULx2803A, ULN2803LW, ULx2823A, and ULN2823LW have series input resistors selected for operation directly with 5 V TTL or CMOS. These devices will handle numerous interface needs —
particularly those beyond the capabilities of standard logic buffers.


ULN2803LW pinout


1. TTL, DTL, PMOS, or CMOS Compatible Inputs

2. Output Current to 500 mA

3. Output Voltage to 95 V

4. Transient-Protected Outputs

5. Dual In-Line Package or Wide-Body Small-Outline Package


Other data sheets are available within the file:

ULN2803A, ULN2804A, ULN2823A, ULN2823LW, ULN2804LW, ULN2824LW

ULN2803LW Datasheet PDF Download

ULN2803LW pdf