Product Summary

The ULN2803A is a high voltage, high-current darlington driver comprised of eight NPN darlington pairs. The ULN2803A features integral clamp diodes for switching inductive loads. Applications include relay, hammer, lamp and display (LED) drivers. The suffix (G) appended to the part number represents a Lead (Pb)-Free product.

Parametrics

ULN2803A absolute maximum ratings: (1)Output sustaining voltage, VCE (SUS): -0.5~50 V; (2)Output current, IOUT: 500 mA / ch; (3)Input voltage, VIN: -0.5~30 V; (4)Clamp diode reverse voltage, VR: 50 V; (5)Clamp diode forward current, IF: 500 mA; (6)Power dissipation, PD, APG: 1.47W; AFWG: 0.92 / 1.31W; (7)Operating temperature, Topr: -40~85℃; (8)Storage temperature, Tstg: -55~150℃.

Features

ULN2803A features: (1)Output current (single output) 500 mA (Max.); (2)High sustaining voltage output 50 V (Min.); (3)Output clamp diodes; (4)Inputs compatible with various types of logic; (5)Package Type-APG: DIP-18pin; (6)Package Type-AFWG : SOL-18pin.

Diagrams

ULN2803A pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ULN2803A
ULN2803A

STMicroelectronics

Transistors Darlington Eight NPN Array

Data Sheet

0-1: $0.56
1-10: $0.44
10-100: $0.38
100-250: $0.34
ULN2803ADW
ULN2803ADW

Texas Instruments

Transistors Darlington Darlington Transistr Array

Data Sheet

0-1: $0.47
1-25: $0.44
25-100: $0.32
100-250: $0.27
ULN2803ADWR
ULN2803ADWR

Texas Instruments

Transistors Darlington TRANSISTOR ARRAYS

Data Sheet

0-1: $0.40
1-25: $0.33
25-100: $0.26
100-250: $0.23
ULN2803ADWRG4
ULN2803ADWRG4

Texas Instruments

Transistors Darlington TRANSISTOR ARRAYS

Data Sheet

0-1: $0.56
1-25: $0.44
25-100: $0.40
100-250: $0.33
ULN2803ADWG4
ULN2803ADWG4

Texas Instruments

Transistors Darlington Darlington Transistr Array

Data Sheet

0-1: $0.54
1-25: $0.50
25-100: $0.38
100-250: $0.38
ULN2803AFW
ULN2803AFW


IC DRIVER DARL 8CH 50V.5A 18-SOL

Data Sheet

Negotiable 
ULN2803AN
ULN2803AN

Texas Instruments

Transistors Darlington TRANSISTOR ARRAYS

Data Sheet

0-1: $0.50
1-25: $0.46
25-100: $0.33
100-250: $0.32
ULN2803ANE4
ULN2803ANE4

Texas Instruments

Transistors Darlington TRANSISTOR ARRAYS

Data Sheet

0-1: $0.79
1-25: $0.62
25-100: $0.56
100-250: $0.49