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ULN2803G AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ULN2803G product

ULN2803G

Power Distribution Switches

Darlington arraylow-side driverrelay driverSOP18

ULN2803G is an SOP18 array of eight NPN Darlington low-side drivers with integrated clamp diodes, intended for relay, solenoid, lamp, LED and motor-control loads.

Best for

  • Low-side switching of relays and solenoids
  • Lamp, LED and motor driver interfaces

Avoid if

  • A high-side driver or regulated output is required
  • The load exceeds the device voltage, current or thermal limits

Check before use

  • Confirm COM is connected correctly when using the integrated clamp diodes
  • Check total package power dissipation and ambient temperature
  • Resolve the datasheet channel-count wording against the eight-channel pinout

Key specifications

Channels
8 NPN Darlington drivers
Output voltage
50 V maximum
Peak output current
500 mA maximum
Package
SOP18

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Relay and solenoid switchingLamp and LED driveStepper motor interfaces

Datasheet

8b3a56a4e855da2413e0d12576a377a7_ULN2803G.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ULN2803G: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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3D Model
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

ULN2803G is a high-current, high-voltage NPN Darlington transistor array with eight driver channels, a common emitter connection and integrated clamp diodes.