Texas Instruments ULN2803ADW Octal NPN Darlington Pair, 500 mA 50 V, 18-Pin SOIC

Texas Instruments

Product Information

Transistor Type:
NPN
Dimensions:
11.75 x 7.6 x 2.35mm
Mounting Type:
Surface Mount
Maximum Continuous Collector Current:
500 mA
Maximum Collector Emitter Saturation Voltage:
1.6 V
Maximum Collector Emitter Voltage:
50 V
Maximum Collector Cut-off Current:
50µA
Height:
2.35mm
Width:
7.6mm
Length:
11.75mm
Package Type:
SOIC
Number of Elements per Chip:
8
Minimum Operating Temperature:
-40 °C
Maximum Operating Temperature:
+85 °C
Pin Count:
18
Transistor Configuration:
Common Emitter
Current - Collector (Ic) (Max):
500mA
HTSUS:
8541.29.0095
RoHS Status:
ROHS3 Compliant
Voltage - Collector Emitter Breakdown (Max):
50V
Operating Temperature:
-40°C ~ 85°C (TA)
Package / Case:
18-SOIC (0.295", 7.50mm Width)
DC Current Gain (hFE) (Min) @ Ic, Vce:
-
Frequency - Transition:
-
REACH Status:
REACH Unaffected
edacadModel:
ULN2803ADW Models
edacadModelUrl:
/en/models/1912658
Manufacturer:
Texas Instruments
Transistor Type:
8 NPN Darlington
Vce Saturation (Max) @ Ib, Ic:
1.6V @ 500µA, 350mA
Moisture Sensitivity Level (MSL):
2 (1 Year)
Qualification:
AEC-Q100
Current - Collector Cutoff (Max):
-
Mounting Type:
Surface Mount
Grade:
Automotive
Series:
-
Supplier Device Package:
18-SOIC
Packaging:
Tube
Power - Max:
-
Base Product Number:
ULN2803
ECCN:
EAR99
RoHs Compliant
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The Texas Instruments ULN2803ADW is a high-performance Octal NPN Darlington pair array, engineered to interface low-level logic signals with high-current or high-voltage loads. This essential component features eight Darlington pairs with common emitters and integral suppression diodes, providing exceptional versatility in electronic designs. Packaged in an 18-pin SOIC, the ULN2803ADW serves as a robust driver, simplifying connections between microcontrollers and demanding peripherals such as relays, solenoids, and lamps.

Top Reasons to Use the Texas Instruments ULN2803ADW Octal NPN Darlington Pair

Use the Darlington pair for its ability to drive high-current loads (up to 500 mA per channel) and its high-voltage output (50V max). It offers eight independent channels and built-in protection diodes, significantly reducing component count and complexity when interfacing low-power logic circuits with inductive or power-hungry devices.

Core Performance Features & Key Uses of the ULN2803ADW

  • Octal (8) NPN Darlington Pairs for multiple independent channels.
  • High current output: 500 mA maximum continuous collector current per channel.
  • High voltage output: 50 V maximum collector-emitter voltage.
  • Integrated suppression diodes for inductive load protection (e.g., relays).
  • Key Uses: Driving stepper motors, controlling relays and solenoids, and buffering logic circuits.

pdf icon
ESD Control Selection Guide V1(Technical Reference)
pdf icon
ULN2803ADW obs 14/Sep/2022(PCN Obsolescence/ EOL)
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MAX222/ULN2803/TRS222 09/Dec/2016(PCN Assembly/Origin)
pdf icon
ULN2803A Datasheet(Datasheets)
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ULN2803A DataSheet Update 1/Mar/2017(PCN Design/Specification)

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