SI8235AB-D-IM

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The SI8235AB-D-IM is an integrated gate driver with isolated isolated power supply for three-stage driving of various power switches. It is ideal for use in a wide range of application fields, from automotive to industrial. This particular device is classified as an Isolator - Gate Driver.

Working Principle

The SI8235AB-D-IM features three integrated isolated power supplies and two high- and low-side drivers with adjustable turn-on and turn-off treshold voltage levels, adjustable slew rates and protected against overcurrent, overvoltage and undervoltage conditions.

The device includes two N-channel low-side MOSFETs with integrated gate drivers and four N-channel high-side MOSFETs with integrated gate drivers protected against over-temperature, short-circuit and over-voltage conditions. The internal power supply provides the MOSFET gate drivers with adjustable turn-on and turn-off thresholds and adjustable slew rates.

The secondary power supply of the isolator circuit provides an isolated power supply to drive the gate driver stage. The peak voltage of the high-side driver and the peak voltage of the low-side driver are adjustable depending on the application. The SI8235AB-D-IM supports both single ended and differential input signals, as well as frequency range up to 250 kHz.

Application Areas

SI8235AB-D-IM isolator drivers are ideal for applications in automotive area, as it offers wide operating temperature range, transient-immune power supply and low EMI protection, improving safety and reliability.

The MOSFET drivers provided by the device make it ideal for use in automotive electrical power steering systems, where high-current and high-speed switching operations are required. Additionally, the device is suitable for applications such as DC/DC converters, engine control units and powertrain systems.

SI8235AB-D-IM isolator drivers are suitable for medical equipment applications, as it complies with IEC 60950-1, IEC 60601-1 and EN 1141-4 standards. It is also compliant with EMC standards EN 61000-4-2, -4-3, -4-4 and -4-5.

Moreover, the device is ideal for applications in the industrial field, providing the necessary high-speed operation and isolation needed for reliable operation. Its wide operating temperature range and adjustable slew rates make it suitable for use in harsh, dynamic and long-term industrial use.

Conclusion

The SI8235AB-D-IM is an isolated gate driver with an integrated power supply. It is suitable for use in a wide range of applications, from automotive to medical to industrial. It features three integrated isolated power supplies and two high- and low-side drivers with adjustable turn-on and turn-off thresholds, adjustable slew rates and protected against overcurrent, overvoltage and undervoltage conditions. The device is classified as an Isolator - Gate Driver.

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