PS2802-1-F3-L-A

Output Type:	Darlington
Supplier Device Package:	4-SSOP
Package / Case:	4-SOIC (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	1V
Current - DC Forward (If) (Max):	50mA
Voltage - Forward (Vf) (Typ):	1.1V
Current - Output / Channel:	90mA
Voltage - Output (Max):	40V
Series:	NEPOC
Input Type:	DC
Rise / Fall Time (Typ):	200µs, 200µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	3400% @ 1mA
Current Transfer Ratio (Min):	700% @ 1mA
Voltage - Isolation:	2500Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to Optoisolators - Transistor, Photovoltaic Output - PS2802-1-F3-L-A

Optoisolators are electrically isolating devices that use light to transfer signals between two isolated circuits. One of the most common type of optoisolators is the transistor, photovoltaic output, often referred to as the PS2802-1-F3-L-A. This particular optoisolator offers a wide variety of features making it an appropriate choice for a variety of applications.

Features of the PS2802-1-F3-L-A

The PS2802-1-F3-L-A is a standard transistor type of photovoltaic output optoisolator. It is a four-pin device that utilizes a GaAs infrared LED as the light source to trigger a phototransistor output. The device features a high input-to-output isolation voltage of 5,000 volts, and low input current of 10 µA. The package also incorporates a resistive load element, allowing it to operate as either an inverter or a buffer. In addition, the device is temperature stable, allowing it to maintain consistent performance over a wide range of temperatures.

Applications for the PS2802-1-F3-L-A

The PS2802-1-F3-L-A can be effectively used in a variety of applications due to its unique features. This optoisolator is ideal for use in signal isolation and level shifting circuits. It can be used to provide electrical isolation and protection in circuits connected to high voltage lines, or to provide isolation between circuits and system grounds. The device is also an ideal choice for low power, low voltage systems and can be used to provide voltage/current level shifting or conversion between devices.

Working Principle of the PS2802-1-F3-L-A

The PS2802-1-F3-L-A is triggered by a light source, usually a GaAs infrared LED. The LED is connected to a control circuit and when voltage is applied to it, the LED emits a beam of light which is focused onto a phototransistor. The phototransistor is sensitive to light and when the LED is activated, it will generate a current that is then amplified by the output transistor. This current is then used to activate a load connected to the output, such as a relay or other device.

Conclusion

The PS2802-1-F3-L-A is a reliable and versatile transistor type of photovoltaic optoisolator which offers a variety of features that make it an attractive choice for many different applications. The device offers isolation voltage up to 5,000 volts, low input current, temperature stability, and the ability to act as either an inverter or a buffer. With its customizable features, the PS2802-1-F3-L-A provides an effective and efficient solution for the isolation of signals between circuits.

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