SI8220BD-D-IS

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The SI8220BD-D-IS is an isolated gate driver developed for the efficient switching of power MOSFETs, IGBTs and high-low side drivers. It utilizes Resonant Voltage Clamp UltraFast recovery diode technology to minimize both conduction and switching losses. It is available in an 8 pin DIP and 4 pin SOIC package.

The SI8220BD-D-IS provides galvanic isolation between the input and output stages. This is achieved through the use of a dc-dc converter internal to the device. It switches an 8A peak current, and is capable of driving a gate capacitance of up to 20nF. It has an operating frequency of up to 250kHz, and a regulated output voltage of 15V.

The SI8220BD-D-IS is used in a variety of applications, including: motor control, power supply, motion control, solar inverters, and HVAC systems. It has a temperature range of up to -40 to +125°C and is also available with high temperature bonds and lead-free reflow. It is also available in an extended temperature range version, which is suitable for use in industrial and medical applications.

The working principle of the SI8220BD-D-IS is based on the Resonant Voltage Clamp technology. This technology utilizes a voltage clamp, which is used to limit the voltage across the switch during switching, thus reducing the switching losses. The clamp is connected to a resonant circuit, which is further connected to the input stage. When the switch is closed, the voltage across the switch is clamped to the resonant voltage. When the switch is opened, the resonant circuit drives a current pulse which is used to reduce the voltage across the switch. This reduces both conduction and switching losses and improves overall efficiency.

In conclusion, the SI8220BD-D-IS combines the Resonant Voltage Clamp UltraFast recovery diode technology with isolation to provide an efficient gate driver solution. It offers high peak current capability and is suitable for use in a variety of applications ranging from motor control to solar inverters. It is available in an 8 pin DIP and 4 pin SOIC package, as well as an extended temperature range version suitable for industrial and medical applications.

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