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ULN2803A Datasheet Preview

ULN2803A Datasheet

Darlington Transistor Array

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ULN2803A
SLRS049H – FEBRUARY 1997 – REVISED FEBRUARY 2017
ULN2803A Darlington Transistor Arrays
1 Features
1 500-mA-Rated Collector Current
(Single Output)
• High-Voltage Outputs: 50 V
• Output Clamp Diodes
• Inputs Compatible With Various Types of Logic
2 Applications
• Relay Drivers
• Hammer Drivers
• Lamp Drivers
• Display Drivers (LED and Gas Discharge)
• Line Drivers
• Logic Buffers
• Stepper Motors
• IP Camera
• HVAC Valve and LED Dot Matrix
3 Description
The ULN2803A device is a 50 V, 500 mA 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ULN2803ADW
SOIC (18)
11.55 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1
1B
Logic Diagram
18
1C
2
2B
17
2C
3
3B
16
3C
4
4B
15
4C
5
5B
14
5C
6
6B
13
6C
7
7B
12
7C
8
8B
11
8C
10
COM
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




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ULN2803A Datasheet Preview

ULN2803A Datasheet

Darlington Transistor Array

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ULN2803A
SLRS049H – FEBRUARY 1997 – REVISED FEBRUARY 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics .......................................... 5
6.7 Typical Characteristics .............................................. 5
7 Parameter Measurement Information .................. 6
8 Detailed Description .............................................. 9
8.1 Overview ................................................................... 9
8.2 Functional Block Diagram ......................................... 9
8.3 Feature Description................................................... 9
8.4 Device Functional Modes.......................................... 9
9 Application and Implementation ........................ 10
9.1 Application Information............................................ 10
9.2 Typical Application ................................................. 10
10 Power Supply Recommendations ..................... 12
11 Layout................................................................... 12
11.1 Layout Guidelines ................................................. 12
11.2 Layout Example .................................................... 12
12 Device and Documentation Support ................. 13
12.1 Receiving Notification of Documentation Updates 13
12.2 Community Resources.......................................... 13
12.3 Trademarks ........................................................... 13
12.4 Electrostatic Discharge Caution ............................ 13
12.5 Glossary ................................................................ 13
13 Mechanical, Packaging, and Orderable
Information ........................................................... 13
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision G (January 2015) to Revision H
Page
• Deleted obsolete orderable ULN2803AN and removed all references to N package............................................................ 1
• Added Storage temperature, Tstg in Absolute Maximum Ratings ........................................................................................... 4
• Deleted VI from Recommended Operating Conditions........................................................................................................... 4
• Added Ambient temperature, TA in Recommended Operating Conditions............................................................................. 4
• Changed coil supply voltage specifications in Design Parameters ...................................................................................... 11
• Added Receiving Notification of Documentation Updates section and Community Resources section ............................. 13
Changes from Revision F (January 2014) to Revision G
Page
• Added Applications, Device Information table, Pin Functions table, ESD Ratings table, Thermal Information table,
Typical Characteristics, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1
Changes from Revision E (July 2006) to Revision F
Page
• Updated document to new TI data sheet format - no specification changes. ........................................................................ 1
• Deleted Ordering Information table. ....................................................................................................................................... 1
2
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Product Folder Links: ULN2803A
Copyright © 1997–2017, Texas Instruments Incorporated


Part Number ULN2803A
Description Darlington Transistor Array
Maker etcTI
Total Page 3 Pages
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