PC725V0NIZXF

Optoisolators - Transistor, Photovoltaic Output

The PC725V0NIZXF optoisolator is a transistor output device that combines an infrared LED and an NPN phototransistor in a single 4-pin package. It provides an electrical isolation barrier between two circuits and helps protect one against potential electrical damage from the other. It functions by transmitting a signal from one circuit to another through optical isolation, creating a safe barrier that prevents electrical noise and interference from traveling back into the first circuit.

Application Field

The PC725V0NIZXF optoisolator can be used in many electrical applications, including process control and data acquisition and communication systems. It is often used as an isolation barrier between control and I/O subsystems, or for providing high-speed isolation between circuits without the need for additional isolated power supplies. Additionally, it can be employed to monitor AC-line powered circuits or be used as an interface for interfacing with low-impedance AC-line voltage circuits.

Working Principle

The PC725V0NIZXF optoisolator works by using an internal LED to transmit an optical signal from one circuit to another circuit. As the LED is powered, it emits infrared light into a phototransistor. The phototransistor then converts the light signal into electrical current, allowing the optical signal from the first circuit to be electrically transferred to the second circuit. This optical isolation provides electrical isolation from the two circuits, preventing electrical interference or damage.

Package Design

The PC725V0NIZXF optoisolator is available in a 4-pin package. It features an integrated LED-phototransistor pair with an LED output, a reverse-biased phototransistor, and two additional control pins. The package is designed to be small and compact, making it easy to install in tight enclosures.

Performance

The PC725V0NIZXF optoisolator has a low turn-on voltage of 18V and a maximum operating voltage of 45V. It also offers fast switching speeds, with a maximum rise time of 20 ns and a fall time of 15 ns. The device is rated for a continuous collector-emitter voltage of 80V and a maximum collector-emitter current of 100mA. Additionally, it can provide electrical isolation of up to 3000Vrms.