ULN2002AS16-13 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	7 NPN Darlington
Current - Collector (Ic) (Max):	500mA
Voltage - Collector Emitter Breakdown (Max):	50V
Vce Saturation (Max) @ Ib, Ic:	1.6V @ 500µA, 350mA
Current - Collector Cutoff (Max):	50µA
DC Current Gain (hFE) (Min) @ Ic, Vce:	--
Power - Max:	--
Frequency - Transition:	--
Operating Temperature:	-40°C ~ 105°C (TA)
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SO

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Introduction

ULN2002AS16-13 is a package of 16 dual Darlington Transistors. It is a bipolar junction transistor (BJT) array that provides isolation between input and output stages. This isolation makes the device ideal for driving DC and stepper motors, LED displays and other types of loads. In this article, we take a look at the application field and working principle of the ULN2002AS16-13.

Application Field

The ULN2002AS16-13 transistor array has a wide variety of applications. This includes but is not limited to the following:

• Robotics and Mechatronics
• Relay Driver
• H-Bridge Design
• DC Motor Driver
• LED Display Controller
• Stepper Motor Driver
• Electronic Circuits
• High Voltage Logic Circuits

The ULN2002AS16-13 is a very versatile device and can be used in all kinds of projects. It is small, low cost and features a convenient layout. The device also features built-in protection against over-current, over-temperature and over-voltage.

Working Principle

The ULN2002AS16-13 is a Darlington array, consisting of 16 two-transistor Darlington pairs. The array is composed of NPN and PNP e-Darlington transistors, which provide very high current gain (hFE = 1000 to 2000).Each channel is controlled by an external control signal, which can be supplied by an external logic source or can be an analog voltage from a potentiometer. The control signals turn the transistors ON and OFF, thereby controlling the current flow through the load.The ULN2002AS16-13 transistor array also features built-in flyback diodes that provide protection against inductive loads like relays, motors, etc. The flyback diodes limit the voltage spike produced when the load is switched OFF, thus protecting the connected circuits.

Conclusion

The ULN2002AS16-13 is a package of 16 dual Darlington Transistors, which makes it ideal for driving DC and stepper motors, LED displays and other types of loads. This device is popular in robotics, mechatronics and a wide variety of electronic projects due to its versatility, low cost and built-in protection features. This article has explored the application field and working principle of the ULN2002AS16-13 transistor array.

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