TLP185(GB,SE

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Optoisolators are solid-state devices with an insulating layer between the input and the output interface which prevents an electrical current from crossing the two. This is done by isolating the two sides with a light-emitting diode, photoresistor, or solar cell, which only allows the transmission of light and not current, thus isolating the two places from each other. The type of optoisolator chosen for a specific application depends on the degree of isolation, the speed of operation, and the type of electrical interface.

The TLP185 (GB,SE) optoisolator is a transistor photovoltaic output device that provides up to 5.2kV of isolation voltage between the input and output interfaces. The TLP185 has a DIP-4 molded header with a built-in 6µF capacitor, and is mounted on the PCB surface. It has an operating temperature range of -40°C to +85°C, a maximum on-state voltage of 5V, and a response time of 70ns.

The TLP185 optoisolator has two main components: the photodiode and the p-type MOS single-gate FET output transistor. When the light from the photodiode strikes the output transistor gate, electrons are generated which, in turn, form an internal voltage at the output. This voltage turns the MOSFET on and a current is allowed to flow through the output.

The TLP185 optoisolator operates in the following way: the light-emitting diode emits light which is detected by the photoresistor and used to power an internal transistor that gates the output of the device. By controlling the amount of light which is received by the photoresistor, the output of the transistor is regulated, thus allowing for the output state of the device to be controlled. When the current is less than 1V, the transistor is off, leading to a low output. When the current increases, the transistor is turned on and an output voltage of 5V is produced. This can be used to control an LED, motor, or solenoid.

The TLP185 has a wide range of applications including voltage isolation, signal isolation, and sensor network isolation. It is also used in photodetectors, medical equipment, industrial controllers, and automotive applications. It is important to note that the TLP185 should not be used in circuit designs where high voltage or high power AC signals are present due to the risk of device damage.

The TLP185 optoisolator is an effective, cost-efficient tool for isolating electrical signals from one another, and for controlling power and current flow in many applications. With its wide range of applications and straightforward operation, it is an ideal choice for engineers who need to isolate currents and signals from each other.

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