ILD211T

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Optoisolators are a class of electronic components that contain a light-emitting device paired with a light-sensing device to transmit electrical signals between two isolated circuits. The ILD211T is a type of optoisolator, specifically a transistor, photovoltaic output optoisolator. It is a single channel device with an LED input and a transistor output.

The ILD211T is designed to provide electrical isolation in circuits operating at high speeds. It is also well-suited for applications requiring high accuracy and immunity to transients and noise. The optoisolator is particularly useful in systems that need to be protected from electrical surges, overvoltage, electrical interference, and other voltage spikes.

The ILD211T consists of a light-emitting diode (LED) and a photo-sensitive transistor that are connected in a current-dependent fashion. The LED is connected between the input and output pins of the optoisolator and is used to transmit information between the two circuits. The LED emits infrared radiation which is sensed by the photo-sensitive transistor, which then passes current through the output pin.

The transistor output of the ILD211T is active-low, meaning that the output is disabled when the LED is off and enabled when the LED is on. This allows for the optoisolator to be used in a wide variety of applications, including signal transmission, logic-level converting, and current limiting.

The ILD211T also has a built-in current-limiting feature that prevents the LED from being damaged by excessive current. This is an important feature as it allows the device to be used in applications that may encounter potentially damaging transients and voltage spikes.

The operating voltage range of the ILD211T is 2.5V to 15V, with a maximum output current of 25mA. The optoisolator can also handle up to 60V spikes and a maximum of 20k frequency shifts per second. The breakdown voltage of the device is 40V and its turn-on time is specified as 8µS.

The ILD211T provides superior noise immunity and can maintain a high level of accuracy even in high-speed switching applications. This makes it a good choice for applications that require very reliable information transmission. Additionally, the device is resistant to electrical interference and can operate in temperatures ranging from -20°C to +85°C.

Overall the ILD211T is an ideal optoisolator for a variety of applications ranging from motor control to signal transmission. Its current-limiting feature makes it particularly well-suited for applications that might be subjected to potentially damaging voltage spikes. Furthermore, its built-in noise immunity and long operating life make it a reliable and cost-effective choice for a variety of applications.

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