SI8261ABD-C-ISR

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Isolators are widely used in a variety of electronic applications and devices. The SI8261ABD-C-ISR isolator is a special type of isolator designed specifically to handle high power loads such as power supplies, industrial motors, and gates. It is a four-channel, isolated, bidirectional high-power, low-power signal switch.

Introduction

The SI8261ABD-C-ISR Isolator is a specialized type of linear isolator designed to control high power switching currents of 1.3A, 2.5A, 5A, and 12A. It is built with integrated electro-magnetic interference suppression circuit. The SI8261ABD-C-ISR isolator incorporates transistors, resistors, and capacitors, as well as an optocoupler that increases the switching accuracy and reliability. This isolator is suitable for control in high power switching applications. It has an operating voltage range of 12V and can be used for three-wire or four-wire high power switching systems.

Application field

The SI8261ABD-C-ISR Isolator is use in a variety of electronic applications and devices. It is a popular choice for microcontroller-based power supplies, industrial motor control systems, and gate drivers for high power systems. Moreover, the isolator is applied on applications such as lighting control systems, HVAC control systems, and motor drives applications where a higher level of control is required. Additionally, the SI8261ABD-C-ISR isolator is used in devices such as smoke detectors, security systems, electric ovens, and industrial welding equipment, etc.

Working principle

The SI8261ABD-C-ISR isolator works by transferring power through its internal resistance, capacitance, and photodiode components. Once the voltage of the control line is applied at the input side, it is transferred to the output side of the isolator. The photodiode acts like a switch, controlling the amount of voltage applied to the output side. The isolator uses the principle of photocoupling to separate the isolated side of the circuit from the higher power and noise. This helps to minimize RF interference and also ensures stable operation. The device also has a high surge resistance and can withstand higher frequencies such as 3GHz.

Conclusion

The SI8261ABD-C-ISR isolator is a specialized type of linear isolator that is used to control high power switching currents. It is suitable for a range of applications, including microcontroller-based power supplies, industrial motor control systems, and gate drivers for high power systems. The isolator utilizes transistors, resistors, capacitors, and an optocoupler to enable accurate and reliable switching. It also has a high surge resistance and can withstand higher frequencies such as 3GHz.

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