SI8233AD-D-IS

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Isolators - Gate Drivers

The SI8233AD-D-IS is a high-performance family of Isolator Gate Drivers designed for integration into high-voltage, low-power 3-phase motor control applications. The SI8233AD-D-IS features an 8-bit bidirectional digital isolator with 3-way isolation and three independent high voltage IGBT output stages. This allows it to provide safe and reliable level shifting between low voltage and high voltage buses and supplies. It also provides integrated protection against transient overvoltage, high voltage spikes, and over-temperature condition.

The SI8233AD-D-IS features a wide range of programmable features that offer the user the flexibility to customize the device for their application. It has two programmable current ratings, ranging from 6A to 25A, as well as a programmable voltage range. Additionally, it offers protection features such as reverse-polarity protection, ground faults, and open circuit protection.

The SI8233AD-D-IS also offers a wide range of isolation options. It has an on-chip 2 MOS (metal-oxide-semiconductor) transformer, which provides up to rated 500V RMS of isolation between the control and power sides. It also has a low-leakage path, which allows the user to prevent unintended current flow from the power side to the control side. Additionally, it includes an integrated surge protection circuit, which prevents transient over-voltage conditions.

The SI8233AD-D-IS works by controlling the IGBT output stages based on digital inputs. The IGBT output stages are connected to two isolated power buses and are operated via a PWM (Pulse Width Modulation) signal from a microcontroller or FPGA. The device can be configured to operate in either voltage or current-mode using an internal register. It offers integrated fault protection features that allow it to detect any faults in the system and shut down the output stages safely during a fault.

The SI8233AD-D-IS also offers a variety of communication options, allowing bidirectional communication via SPI or I2C protocols. It also supports CAN-Bus and other interface protocols, allowing data to be transferred from the device to the microcontroller or FPGA. This allows for efficient control of the IGBT output stages in the system.

The SI8233AD-D-IS is targeted for use in 3-phase motor control applications, such as in solar inverters, inverter drives, automotive systems, industrial control systems, and other similar applications. It offers integrated level shifting and fault protection features to ensure reliability and safety, as well as efficient operation of the output stages. With its wide range of features and isolated power buses, the SI8233AD-D-IS is a perfect choice for high-voltage, low-power motor control applications.

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