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ULN2803A

SLRS049G –FEBRUARY 1997–REVISED JANUARY 2015

ULN2803A Darlington Transistor Arrays

1 Features 3 Description

The ULN2803A device is a high-voltage, high-current

• 500-mA-Rated Collector Current

Darlington transistor array. The device consists of

(Single Output)

eight NPN Darlington pairs that feature high-voltage

• High-Voltage Outputs: 50 V

outputs with common-cathode clamp diodes for

• Output Clamp Diodes

switching inductive loads. The collector-current rating

of each Darlington pair is 500 mA. The Darlington

• Inputs Compatible With Various

pairs may be connected in parallel for higher current

Types of Logic

capability.

• Relay-Driver Applications

Applications include relay drivers, hammer drivers,

• Compatible with ULN2800A Series

lamp drivers, display drivers (LED and gas

discharge), line drivers, and logic buffers. The

2 Applications

ULN2803A device has a 2.7-kΩ series base resistor

for each Darlington pair for operation directly with

• Relay Drivers

TTL or 5-V CMOS devices.

• Hammer Drivers

• Lamp Drivers

Device Information

(1)

• Display Drivers (LED and Gas Discharge)

PART NUMBER PACKAGE (PIN) BODY SIZE (NOM)

• Line Drivers

SOIC (18) 11.50 mm × 7.50 mm

ULN2803

• Logic Buffers

PDIP (18) 22.48 mm × 6.35 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

4 Simplified Schematics

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.

Summary of content (21 pages)

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Sample & Buy Product Folder Support & Community Tools & Software Technical Documents ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 ULN2803A Darlington Transistor Arrays 1 Features 3 Description • The ULN2803A device is a high-voltage, high-current 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.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 9 Features .................................................................. Applications ........................................................... Description ............................................................. Simplified Schematics........................................... Revision History..................................................... Pin Configuration and Functions ..............
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ULN2803A www.ti.com SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 6 Pin Configuration and Functions DW OR N PACKAGE (TOP VIEW) 1B 2B 3B 4B 5B 6B 7B 8B GND 1 18 2 17 3 16 4 15 5 14 6 13 7 12 8 11 9 10 1C 2C 3C 4C 5C 6C 7C 8C COM Pin Functions PIN NAME NO.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings at 25°C free-air temperature (unless otherwise noted) (1) MIN MAX Collector-emitter voltage Input voltage (2) (1) (2) V 30 V Peak collector current 500 mA Output clamp current 500 mA Total substrate-terminal current TJ UNIT 50 Operating virtual junction temperature –65 –2.
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ULN2803A www.ti.com SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 7.5 Electrical Characteristics at TA = 25°C free-air temperature (unless otherwise noted) PARAMETER ULN2803A TEST CONDITIONS MIN ICEX Collector cutoff current VCE = 50 V, see Figure 4 II = 0 II(off) Off-state input current VCE = 50 V, TA = 70°C IC = 500 μA, see Figure 5 II(on) Input current VI = 3.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com Typical Characteristics (continued) Figure 3.
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ULN2803A www.ti.com SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 8 Parameter Measurement Information Open VCE Open VCE IC II(off) ICEX Open Figure 4. ICEX Test Circuit Figure 5. II(off) Test Circuit Open Open II IC VI VI Open VCE Figure 6. II(on) Test Circuit Figure 7. VI(on) Test Circuit Open VR IC hFE = II II IR IC Open VCE Figure 8. hFE, VCE(sat) Test Circuit Figure 9. IR Test Circuit IF VF Open Figure 10.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com Parameter Measurement Information (continued) Input Open VS = 50 V RL = 163 Ω Pulse Generator (see Note A) Output CL = 15 pF (see Note B) Test Circuit <5 ns Input 10% <10 ns 90% 50% 90% 50% VIH (see Note C) 10% 0 0.5 µs tPHL tPLH VOH Output 50% 50% Voltage Waveforms A. The pulse generator has the following characteristics: PRR = 12.5 kHz, ZO = 50 Ω. B. CL includes probe and jig capacitance. C. VIH = 3 V Figure 11.
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ULN2803A www.ti.com SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 Parameter Measurement Information (continued) VS Input 2 mH 163 Ω Pulse Generator (see Note A) Output CL = 15 pF (see Note B) Test Circuit <5 ns Input 10% <10 ns 90% 1.5 V 90% 1.5 V VIH (see Note C) 10% 0 40 µs VOH Output Voltage Waveforms A. The pulse generator has the following characteristics: PRR = 12.5 kHz, ZO = 50 Ω. B. CL includes probe and jig capacitance. C. VIH = 3 V Figure 12.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com 9 Detailed Description 9.1 Overview This standard device has proven ubiquity and versatility across a wide range of applications. This is due to its integration of 8 Darlington transistors that are capable of sinking up to 500 mA and wide GPIO range capability. The ULN2803A comprises seven high voltage, high current NPN Darlington transistor pairs. All units feature a common emitter and open collector outputs.
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ULN2803A www.ti.com SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 10 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 10.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com Typical Application (continued) 10.2.1 Design Requirements For this design example, use the parameters listed in Table 1 as the input parameters. Table 1. Design Parameters DESIGN PARAMETER EXAMPLE VALUE GPIO Voltage 3.3 V or 5.0 V Coil Supply Voltage 12 V to 100 V Number of Channels 8 Output Current (RCOIL) 20 mA to 300 mA per channel Duty Cycle 100% 10.2.
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ULN2803A www.ti.com SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 10.2.3 Application Curves 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -0.004 14 12 Output voltage - V Output voltage - V The following curves were generated with ULN2803A driving an OMRON G5NB relay – Vin = 5.0V; Vsup= 12 V & RCOIL= 2.8 kΩ 10 8 6 4 2 0 0.004 0.008 Time (s) 0.012 0 -0.004 0.016 D001 Figure 14. Output Response with Activation of Coil (Turn On) 0 0.004 0.008 Time (s) 0.012 0.016 D001 Figure 15.
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ULN2803A SLRS049G – FEBRUARY 1997 – REVISED JANUARY 2015 www.ti.com 13 Device and Documentation Support 13.1 Trademarks All trademarks are the property of their respective owners. 13.2 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 13.3 Glossary SLYZ022 — TI Glossary.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 3-Mar-2014 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Mar-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device ULN2803ADWR Package Package Pins Type Drawing SOIC DW 18 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 24.4 Pack Materials-Page 1 10.9 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 12.0 2.7 12.0 24.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Mar-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) ULN2803ADWR SOIC DW 18 2000 370.0 355.0 55.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.