SI8233BD-C-IS

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SI8233BD-C-IS is an isolator used as a gate driver. It provides excellent electrical insulation for power circuits switching and a low propagation delay for accurate response. It is capable of driving 3.3V to 15V MOSFETs and can switch up to 200A peak currents. Thanks to the low propagation delay, the SI8233BD-C-IS is suitable for use in many different applications such as motor control, DC DC converters and LED lighting.

The SI8233BD-C-IS operates as an analog input-controlled voltage-mode driver between the logic/PWM controller and the power MOSFETs. It features a 10V input tolerance that enables to drive both low-side and high-side N-channel MOSFETs. It also provides protection against polarity reversal, output short-circuit and ESD.

The main application fields of the SI8233BD-C-IS are: motor driving, DC DC converters, power supplies, automotive and consumer applications, lighting and general purpose switching. In motor driving applications, it provides a smooth transition of the switching states, while in power supplies and DC DC converters it ensures accurate load sharing and output regulation.

The working principle of the SI8233BD-C-IS is based on analog control. An analog signal is used to control the output voltage, which is adjusted with a voltage-mode control circuit. The output voltage is then converted to an on-off signal to drive the MOSFET. The isolation between input and output is provided by a built-in optocoupler.

In conclusion, the SI8233BD-C-IS is an isolator designed as a gate driver for motor driving, DC DC converters and power supplies applications. It combines excellent electrical insulation, low propagation delay, 10V input tolerance and protection against polarity reversal, output short-circuit and ESD. It operates on a voltage-mode control circuit, allowing for the accurate regulation of the loads.

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