AUIR3200STR

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Gate drivers are electrical switches which provide a path between a voltage source, a power switch, and a gate input of the power switch. The gate driver can isolate the controller from the gate-source voltage, allowing for greater flexibility in the selection of the power switch. The AUIR3200STR is a self-oscillating three-phase MOSFET driver from Infineon that is typically used in automotive applications. It is designed to drive N-channel MOSFETs in three-phase motors, such as those used in automotive alternators and e-mobility applications.

The AUIR3200STR has a supply voltage range of 8V-30V, and an output current of up to 3A. It is designed to be integrated into space-constrained systems, and offers a current limiting function, with an adjustable output over-current threshold. The device also features an over temperature protection function, with Thermal Shutdown (TSD) at 155°C. The driver is also capable of starting up a motor with a dynamic brake moment.

The AUIR3200STR features an advanced built-in current protection feature, which monitors the current through the power switch during switching transitions. This functions similarly to a MOSFET with the overcurrent protection, but with the benefit of higher switching speed. The driver is also equipped with a built-in timer, which allows the user to set a timed output transition. This allows for more precise control over the shift in current flow, allowing for smoother transitions.

The PSCIFET technology used in the AUIR3200STR also provides improved EMI performance and increased system efficiency. This is achieved through improved EMI performance, which is due to an active current path control and bypass resistors at the gate pin, which reduces the peaks of the voltage transients during switching. This reduces the potential to cause interference with other nearby circuitry.

The AUIR3200STR also features accuracy in current sensing, which is due to its on-chip power switches which monitor the gate voltage. This ensures that the output current is aligned with the input current, minimizing the potential of current mismatch. This is essential when driving large loads, as it ensures a consistent output for the system, improving system efficiency and reliability.

In conclusion, the AUIR3200STR is a great choice for automotive applications, due to its high level of integration and performance. Its small size and high current output make it ideal for space-constrained applications, while its advanced features add further value. The device also offers superior EMI performance, improved system efficiency, and increased accuracy and reliability when driving large loads.

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