IL252-X007T

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Optoisolators are devices that use a photovoltaic (PV) or LED component to electrically isolate two circuits. The most common type of optoisolator is the Transistor, Photovoltaic Output (TPO) optoisolator, which is used to isolate a low-power signal from a high-power system. IL252-X007T is a TPO optoisolator manufactured by Toshiba. This article will discuss the application field and working principle of the IL252-X007T.

The IL252-X007T is a TPO optoisolator that is specifically designed to be used in automotive systems where high reliability is required. It is typically used in applications such as Anti-Lock Braking Systems (ABS), Throttle Control, and Fuel Injection. These automotive applications require high levels of isolation between the input and output due to their safety-critical nature. The IL252-X007T provides this level of isolation thanks to its robust construction and high-reliability components.

The IL252-X007T is constructed with an internal LED, a photodiode, and a transistor, as shown in the figure below. The LED is powered by the input voltage and emits light, which is then absorbed by the photodiode. The photodiode’s output is then amplified by the transistor to drive the load.

The LED is designed with a high-efficiency phosphorous coating that ensures that the light output is constant over a wide range of temperatures. This ensures that the optoisolator’s performance is unaffected by changes in temperature. The photodiode is also designed with a high-reliability construction that ensures that it can handle long-term operation and and is highly resistant to damage caused by electrical transients and EMC interference. The transistor is also designed with a robust construction and features a low-capacitance design that provides robust switching performance across a wide range of temperatures.

The operating voltage range of the IL252-X007T is 4.5V to 28V and it can handle input voltages up to 30V. The maximum output current is 1A, and the insulation voltage is 300V DC. The optoisolator features a transfer ratio of 0.2A/V, and the device’s total power dissipation is 285mW. The maximum isolation voltage is 4000Vrms.

In summary, the IL252-X007T is a high-reliability TPO optoisolator manufactured by Toshiba that is designed for use in automotive applications. It has a wide operating voltage range, high insulation voltage, and low power dissipation. It is highly reliable, thanks to its robust construction and high-reliability components. Thanks to its wide range of features and specifications, the IL252-X007T is an ideal choice for applications in which high levels of isolation and reliability are required.

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