PVI5050NPBF

Optoisolators - Transistor, Photovoltaic Output offer electrical isolation between different circuits, protecting sensitive equipment from high voltage or other unsafe signals. The PVI5050NPBF is specifically designed for opto-isolation applications where input voltage protection and output current control is critical. It is a highly-experienced option for isolating equipment from hazardous voltages, as well as adding individual sources of voltage, such as solar panels, which can be operated independently of the main supply. In this article, we will take a look at the PVI5050NPBF\'s application field and working principle.

PVI5050NPBF application field

The PVI5050NPBF is a single channel opto-isolator with a phototransistor output. It is mainly suitable for protection and controlling in low-voltage circuits, and can be used in a wide range of applications, such as digital photography, telecommunications, computers and control systems. It has a wide operating temperature range of -40°C to 85°C and is highly suited to network applications that require large current carrying capacity.

A key feature of the PVI5050NPBF is its low clamp voltage of 1.3 V, which helps ensure the safe operation of low voltage and low current systems. It also features low propagation delay (5 ns), low output saturation voltage (0.3 V), no false triggering, and has excellent noise immunity and EMI immunity. In addition, its 5.5kΩ resistive output impedance also helps protect the device from short circuit and current overload.

The PVI5050NPBF is available in two different packages: a through-hole package (TO-226AA) and a surface-mount package (SOT-23). It has a maximum continuous collector current rating of 50 mA and can be used at a maximum power dissipation of 400 mW.

PVI5050NPBF working principle

The PVI5050NPBF operates on a photovoltaic principle, meaning that it converts light energy into electrical energy. It consists of a photosensitive diode and a transistor, which are both integrated into a single package. The diode is sensitive to infrared light, and when the package is exposed to an infrared light source, the diode converts the light energy into electrical energy. This then passes through an internal buffer amplifier that isolates the input from the output, and the energy is then passed on to the transistor.

The transistor acts as the output device, as it amplifies the signal from the photosensitive diode. The output signal from the transistor can then be used to control external circuitry, such as relays or switches, depending on the desired application. In addition, the PVI5050NPBF also features a photo-transistor response time of 0.5 µs, which helps to ensure that the device reacts quickly to changes in the light source.

Conclusion

The PVI5050NPBF is an excellent opto-isolation device, and offers a wide range of features and benefits. It is versatile enough to be used in a variety of applications, and its low clamp voltage and low output saturation voltage makes it well-suited for use in low-voltage circuits. In addition, its fast response time and noise immunity make it ideal for applications that require precise control and protection.

The PVI5050NPBF is an effective and reliable solution to opto-isolation, and we recommend considering it for any opto-isolation application.