PS2802-4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators are optoelectronic components and are used for electrical isolation between two systems. They function as signal couplers which transfer either digital or analog signals from a primary source to a secondary source, while also providing electrical isolation between the two systems. PS2802-4 are optocoupler isolators which provide optoelectronical isolation of high speed signals or power. The advantages of these devices is that the electrical isolation helps to prevent electrical shorts while the light transmission isolates logic or other control signals so the noise on these signals is shielded from the primary or secondary sources.

PS2802-4 are thus suitable for driving power MOSFETs and IGBTs, and have a far higher breakdown voltage as compared to similar components using conventional silicon-base LEDs or diode/transistor combinations. This makes these devices extremely useful for driving high power loads, such as motors and other high power devices. These devices also have a wide isolation voltage range up to 2500Vrms. The optocoupler is constructed of a photocoupler, consisting of a photoemitter and a detector, in a 6-pin dual in-line package (DIP).

For the application field of PS2802-4, they are suitable for use in many applications including; motor control, SMPS based applications, DC to AC inverters and telecom. The wide input voltage range, up to 16V, makes these components useful in industrial, medical and consumer electronics applications. The high voltage isolation level and the use of an epoxy lens make these devices suitable for usage in high humidity environments, and the fast switching speed of the device makes them suitable for high-speed communications.

Understand how PS2802-4 works, one should know their pin configuration. There are 6 pins on the device, they are respectively labeled Anode, Cathode, Collector, Emitter, Casing and Output. Anode and Collector are the input pins, Cathode and Casing are the output pins, therefore the outputs of the device are connected to the emitted diodes anode and casing. The Collector pin receives the signal input and then travels to the photoemitter across the dielectric layer and causes electron and hole pair generation. As the electrons and holes travel to the cathode and emitter respectively, the electrons travel through the external circuit and the holes are absorbed by the detector in the optocoupler. Input current then causes the output at the detector, hence bringing the device to be in on state.

To wrap it up, PS2802-4 is an optoisolator from Vishay Semiconductors suitable for driving power MOSFETs and IGBTs, with a wide input voltage range and a maximum isolation voltage of 2500Vrms. It is useful for many applications including motor control, SMPS based applications, DC to AC inverters and telecom. It is also capable of withstanding high humidity environment and has a fast switching speed for high-speed applications. And its working principle can be described in terms of the current flow, from anode, across the dielectric layer to the photoemitter, and finally to the detector.

The specific data is subject to PDF, and the above content is for reference