PS2581AL2-A

Series:	NEPOC
Packaging:	Tube
Part Status:	Active
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	50% @ 5mA
Current Transfer Ratio (Max):	400% @ 5mA
Turn On / Turn Off Time (Typ):	--
Rise / Fall Time (Typ):	3µs, 5µs
Input Type:	DC
Output Type:	Transistor
Voltage - Output (Max):	70V
Current - Output / Channel:	30mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - DC Forward (If) (Max):	30mA
Vce Saturation (Max):	300mV
Operating Temperature:	-55°C ~ 100°C
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Gull Wing
Supplier Device Package:	4-SMD

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PS2581AL2-A Application Field and Working PrincipleOptoisolators are devices used to electrically isolate two circuits or components while allowing the two sides to communicate with each other, usually in the form of a signal or data. The PS2581AL2-A is an optoisolator consisting of a LED and a transistor photovoltaic output.PS2581AL2-A is designed to provide a high level of reliability in applications where noise coupling may be a problem, such as industrial automation, measurement and control systems, power conditioning and data communications equipment. Built-in surge protection ensures that the device will survive up to 400 V peak-to-ground transients.The PS2581AL2-A consists of a high-efficiency red LED coupled with an integrated NPN silicon photovoltaic output transistor. Although the PS2581AL2-A has a number of features that make it unique, one of its key benefits is that it allows higher frequencies to be used, thus improving the speed of data transfer.The LED is the light source of the optoisolator and is responsible for launching light from one side of the device to the other. The incident light is detected by a silicon photodiode, which is connected to the base of the integrated NPN transistor. This triggers the current flow between the LED anode (positive end) and the transistor collector (negative end). The current flow is the output of the device and the voltage at the collector is what typically drives the load on the system.The overall working principle of PS2581AL2-A is that it transmits a signal through a light source (LED) and transistors (on both the input and output ends). The signal is then modulated, which is what allows the device to detect and control the signal. The current passing through the optoisolator is then converted into a voltage, which can be used to control the load or signal of the system.The PS2581AL2-A has a wide range of applications, from automotive and industrial applications, to computers and telecoms. It can be used to isolate signals transfer between micro-controllers and signal controllers, for digital interfacing between various systems, to provide electrical isolation between two points, and many other applications. It is also typically used in the signal conditioning of analog signals. This simply means that it amplifies, filters, or modulates the signal, depending on what the system requires. Additionally, it can be used to convert signals to digital form in order to be transmitted along a digital line.In conclusion, the PS2581AL2-A is an optoisolator with photovoltaic output that provides effective separation between two systems while allowing signals to be exchanged. Its wide range of applications and features makes it an attractive option in many industrial and automotive sectors. This device is reliable and has surge protection features, making it a dependable optoisolator.

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