SI8261ABC-C-ISR

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The SI8261ABC-C-ISR isolators, also known as the gate drivers, are designed to provide galvanic isolation of up to 5000 Volts RMS. These isolators feature high-speed switching and separate interfacing controllers. They are ideal for electrically isolating amplifiers, motors, and actuators or to help increase noise immunity and reduce high speed digital cross-talk.

SI8261ABC-C-ISR are used in medical equipment, industrial controls, avionics, and communications systems, among other critical high-performance applications. They offer an electrical isolation barrier between a microcontroller, such as AB phase driver, and an external device or subsystem. The device\'s isolated core gives them a high noise immunity of up to 7500 Volts RMS, which helps them isolate interference from both DC and AC sources. The device allows for very low switching times, typically ranging from 1-4 µs, which is important for ensuring a smooth, non-interrupted flow of power in an application.

The device functions by having an input side and an output side, with an optical isolation barrier in between. On the input side, the signals from external sources, such as a microcontroller, are converted to electrical signals using an encoder. On the output side, these electrical signals are converted back to the original optical signals and transmitted to the intended device or subsystem. This entire process happens without any physical contact between the input and output sides, ensuring complete isolation.

The SI8261ABC-C-ISR isolators also feature integrated circuitry with a low output impedance, which helps to reduce power losses and stresses on the driver circuit. The device offers an extremely wide temperature range, from -40°C to +125°C for reliable operation in all types of environments. Furthermore, it is designed to meet the rigorous ESD protection requirements of IEC 61000-4-2 Level 3, up to ±20 kV. The device also comes with an integrated protection diode, which helps to protect it against reverse polarity.

In summary, SI8261ABC-C-ISR isolators are specifically designed to provide reliable and high speed galvanic isolation, enabling the protection and increased immunity of an application from outside noise and interference. These isolators are ideal for a variety of applications and come with various features, such as wide temperature range and an integrated protection diode, to help ensure reliable performance in all kinds of environments.

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