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ULN2803ADW +BOM

Small signal NPN bipolar transistor with a maximum current rating of 0.5A

Manufacturer:

Texas Instruments
Mfr.Part #:

ULN2803ADW
Datasheet:

ULN2803ADW Datasheet (PDF)
Configuration:

Octal
Transistor Polarity:

NPN
Collector- Emitter Voltage VCEO Max:

50 V
Maximum DC Collector Current:

500 mA
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ULN2803ADW General Description

The ULN2803ADW is a high-voltage, high-current Darlington transistor array. It consists of eight NPN Darlington pairs with common emitters. Each pair can handle a maximum load voltage of 50 volts and current up to 500 mA. The ULN2803ADW is designed for use in applications that require driving high-current loads such as relays, solenoids, and stepper motors.The ULN2803ADW features built-in diodes for protection against back EMF, making it suitable for inductive loads. It also has a common cathode clamp diode for each Darlington pair to protect the transistors from voltage spikes. The device can be easily interfaced with logic-level signals from microcontrollers, PLCs, or other digital circuits.The ULN2803ADW is packaged in a 18-pin DIP (Dual Inline Package) format, making it easy to integrate into existing circuit designs. It operates over a wide temperature range of -20°C to 105°C, making it suitable for a variety of industrial and automotive applications.

Key Features

8-channel, high voltage, high current Darlington transistor array
Output can be parallel connected for higher current capability
Wide supply voltage range of 3 V to 50 V
Output clamp diodes for inductive load driving
Compatible with TTL, DTL, PMOS, or CMOS logic
Available in 18-pin SOIC package

Application

Stepper motor circuits
Brushless motor circuits
Compact driver circuits

Specifications

Product Category	Darlington Transistors	Configuration	Octal
Transistor Polarity	NPN	Collector- Emitter Voltage VCEO Max	50 V
Maximum DC Collector Current	500 mA	Mounting Style	SMD/SMT
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Series	ULN2803A	Height	2.35 mm
Length	11.62 mm	Moisture Sensitive	Yes
Operating Temperature Range	- 40 C to + 85 C	Product Type	Darlington Transistors
Factory Pack Quantity	40	Subcategory	Transistors
Width	7.52 mm	Unit Weight	0.007408 oz