PS2561L1-1-L-A

Output Type:	Transistor
Supplier Device Package:	4-DIP
Package / Case:	4-DIP (0.400", 10.16mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	300mV
Current - DC Forward (If) (Max):	80mA
Voltage - Forward (Vf) (Typ):	1.17V
Current - Output / Channel:	50mA
Voltage - Output (Max):	80V
Series:	NEPOC
Input Type:	DC
Rise / Fall Time (Typ):	3µs, 5µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	400% @ 5mA
Current Transfer Ratio (Min):	200% @ 5mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tube

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Optoisolators - Transistor, Photovoltaic Output

Optoisolators are devices that allow safe electrical isolation between two circuits, commonly used in electrical and electronic systems. One of the most popular optoisolators is the PS2561L1-1-L-A. In this article, we discuss the application field of this device as well as its working principle.

Application Field

The PS2561L1-1-L-A is a photovoltaic optoisolator designed for use in industrial and commercial settings. This device provides 2500Vrms of electrical isolation and is capable of handling up to 50mA of DC or AC current. It is commonly used in the automotive, telecommunication, computer and consumer electronics industries. The device provides a wide range of benefits. It isolates high voltage circuits from low voltage circuits to prevent dangerous shocks and other unwanted effects. It also prevents noise generated by one circuit from interfering with another circuit as it passes through the PS2561L1-1-L-A. In addition, the device\'s isolation allows for greater system reliability and can protect sensitive circuits against dangerous power surges and overvoltage conditions.

Working Principle

The PS2561L1-1-L-A features an integrated photodiode, LED, and NPN transistor, which allows it to function as both an amplifier and a switching device. When the LED is illuminated by an input voltage, it generates a current that passes through the photodiode. The current produces a voltage across the photodiode, which is then passed to the transistor. The transistor then amplifies the current and passes it to the output. The device is designed to provide electrical isolation between the input and output, allowing signals to pass from one circuit to the other without direct physical contact. This is achieved by using the photodiode to convert the input signal to a high-voltage electrical signal which is then passed to the output via the transistor. This high voltage signal serves to isolate the two circuits, preventing the flow of unwanted current and allowing the input and output signals to remain separate.

Conclusion

The PS2561L1-1-L-A is a photovoltaic optoisolator designed for use in industrial and commercial settings. This device provides 2500Vrms of electrical isolation and is capable of handling up to 50mA of DC or AC current. It is commonly used in the automotive, telecommunication, computer and consumer electronics industries. The device works by using a photodiode, LED, and transistor to convert an input signal into a high-voltage electrical signal which is then passed to the output. This electrical isolation prevents the two circuits from directly interacting, preventing unwanted currents from passing between them and ensuring the reliability and safety of the system.

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