PS9155-AX

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Optoisolators are electronic components used to electrically isolate two different sections of circuits. They are capable of passing signals from one circuit to another while blocking any type of direct electrical conduction between the two sections of the circuits. The PS9155-AX Optoisolator is a logic output optoisolator, commonly known as an MOSFET optoisolator. It is an integrated circuit (IC) with a gate-enabled MOSFET transistor controlled by a light-emitting diode (LED).

The PS9155-AX optoisolator is primarily designed for interfacing digital logic systems in order to protect expensive and sensitive logic circuitry from current and voltage surges. It can provide an effective isolation barrier between high powered circuits and smaller low-powered circuits like those used in logic instrumentation, control systems, medical equipment, and other highly sensitive equipment. These optoisolators also find applications in civil aircraft systems, industrial control systems, telecommunication and data processing systems. The main features of PS9155-AX include low drive current, immunity to RF interference, low input and high output isolation voltage, monolithic package, and excellent speed performance.

The working principle of the PS9155-AX optoisolator is quite simple. When a current is applied to the input of the optoisolator, the LED will emit light proportional to that current. The light is used to trigger the MOSFET transistor which, in turn, produces an output voltage on the output pin corresponding to the input current. The isolation between the input and output is ensured through the use of light as the transfer medium instead of direct electrical conduction. The LED is electrically isolated from the MOSFET, thus providing excellent isolation between the two sections of the circuit. The PS9155-AX optoisolator can be used to provide a solid logic interface between two circuits as it can accept an input current from one circuit and produce an output voltage in the other.

In conclusion, the PS9155-AX is an optoisolator specially designed for use in logic-level applications. It provides an effective insulation barrier between two different electrical circuits while ensuring excellent speed performance and excellent input and output isolation. It can be used in a wide variety of applications for interfacing digital logic systems and protecting sensitive logic circuitry from current and voltage surges.

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