PS2561DL-1Y-W-A

The PS2561DL-1Y-W-A optically coupled isolator is a single-channel photovoltaic output type optoisolator device primarily intended for use in isolating digital isolated power circuits. Internal components include a high frequency light-emitting diode (LED), an integrated photo-sensor, and four transistors. This optoisolator provides an isolation barrier between input and output signals in applications such as those requiring short-circuit protection, electrical isolation, and surge voltage suppression. Applications for this device include, but are not limited to, industrial motor controls, process control instrumentation, various communications systems, and many other electronic circuits that require electrical isolation.

The PS2561DL-1Y-W-A consists of an LED that illuminates a phototransistor, which changes its state when the LED current exceeds an internally-trimmed threshold set by the manufacturer. The output of this optoisolator is a low-power quartz photodetector composed of four NPN transistors connected in common base configuration. The output transistors operate in a linear manner with limited current capability, allowing for short-term overloads. The output transistors are capable of sinking and sourcing small currents, making them suitable for applications where current is limited.

The PS2561DL-1Y-W-A optoisolator is capable of handling various signal types such as DC and AC power, low-level digital logic, and low frequency AC signals. It offers a wide isolation voltage rating of up to 800V rms, making it suitable for a variety of power isolation applications. This device is also capable of providing high-speed response time and low offset. Due to its small size and low surge capability, it is ideal for applications in which board space is at a premium.

This optoisolator can be used in various applications, such as motor control, power supplies, signal attenuators, motor speed controllers, communication systems, and even surge suppression applications. Its principal mode of operation is the transfer of a voltage signal from one circuit to another, utilizing photovoltaic effect. The quartz photodetector produces an output voltage when the two voltages are present and equal, but with the absence of one, the output voltage will drop to a lower voltage. Additionally, it can be used for signal transfer in both analog applications where isolation is needed and digital applications that require electrical isolation.

The PS2561DL-1Y-W-A optoisolator is a cost-effective, single-channel device that presents an extremely efficient method for high-power isolation, quick voltage pick-off and fast signal transfer. This particular optoisolator is suitable for a wide range of applications in various industrial, commercial and consumer electronics. It is an efficient, reliable and cost-effective solution suitable for all power isolation requirements.