ULN2803AFWG

Name: ULN2803AFWG
Rating: 4.5 (10 reviews)

00 mA and a voltage rating of 50 V

4,470 Effective Inventory

ULN2803AFWG

Effective Inventory4,470

00 mA and a voltage rating of 50 V

Manufacturer Part # : ULN2803AFWG
Package/Case: SOIC-18-300mil
Brand: Toshiba
Product Categories : Memory

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About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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ULN2803AFWG DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$1.148	$1.15
10	$0.980	$9.80
30	$0.886	$26.58
100	$0.781	$78.10
500	$0.626	$313.00
1000	$0.605	$605.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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Details

8ch Darlington Sink DriverThe ULN2803APG / AFWG Series are high−voltage, high−current darlington drivers comprised of eight NPN darlington pairs.All units feature integral clamp diodes for switching inductive loads.Applications include relay, hammer, lamp and display (LED) drivers.Features• Output current (single output) 500 mA (max)• High sustaining voltage output 50 V (min)• Output clamp diodes• Inputs compatible with various types of logic.• Package Type−APG : DIP−18pin• Package Type−AFWG : SOP−18pin

Key Features

The ULN2803APG / AFWG Series are high−voltage, high−current darlington drivers comprised of eight NPN darlington pairs.
All units feature integral clamp diodes for switching inductive loads.
Applications include relay, hammer, lamp and display (LED) drivers.
Features
Output current (single output) 500 mA (max)
High sustaining voltage output 50 V (min)
Output clamp diodes
Inputs compatible with various types of logic.
Package Type−APG : DIP−18pin
Package Type−AFWG : SOP−18pin

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category !

Toshiba

Brand

Toshiba

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification ULN2803AFWG PDF Download

FAQs

What is ULN2803AFWG?

The ULN2803AFWG is a high-voltage, high-current Darlington transistor array designed by Texas Instruments. It is commonly used for driving inductive loads such as relays, solenoids, stepper motors, and LED displays in various applications.

How Does ULN2803AFWG Work?

The ULN2803AFWG works by providing a high-current amplification stage using Darlington transistor pairs to drive loads that require higher current or voltage levels than a typical logic output can handle. It acts as a buffer between the microcontroller or logic circuit and the high-power load, protecting the control circuitry.

How Many Pins does ULN2803AFWG have and What are the Functions of the Pinout Configuration?

The ULN2803AFWG is housed in an 18-lead SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

COM: Common connection for the diodes associated with each Darlington pair.
IN1 to IN8: Input control pins for each Darlington pair.
OUT1 to OUT8: Output pins for each Darlington pair.
GND: Ground connection for the device.
VCC: Positive power supply pin for the device.

What are the Pros and Cons of ULN2803AFWG?

Pros:

High-Voltage Handling: Capable of driving high-voltage loads.
High-Current Capability: Can handle high current levels, making it suitable for inductive loads.
Integrated Protection Diodes: Includes diodes for protection against back electromotive force (EMF) from inductive loads.
Multiple Channels: Provides multiple Darlington pairs for driving various loads simultaneously.
Easy to Use: Simple interfacing with microcontrollers or logic circuits.

Cons:

Heat Dissipation: May require heat sinking for high-power applications to dissipate heat efficiently.
Power Dissipation: Generates some power dissipation due to the Darlington transistor characteristics.
Cost: Higher cost compared to simple driver solutions due to the integrated features.

Are There Any Equivalents/Alternatives to ULN2803AFWG for Recommendation?

The ULN2003A from STMicroelectronics is a similar high-current Darlington array alternative.
Alternatives to the ULN2803AFWG include the UDN2981A from Allegro Microsystems and the MC1413 from ON Semiconductor.

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ULN2803AFWG

ULN2803AFWG

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