S8522BA

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S8522BA is a type of multifunctional SiC power device, which mainly has two application fields, one is used as an electrical switch in EV and HEV power management systems, such as inverters, on-board chargers, batteries, capacitors, etc., and the other is used as an alternator for electric drives. Moreover, it can also meet the fast transient response in dynamic control of motor drives. In terms of working principle, it is an all-MOS power device, based on the structure of n-channel and p-channel FET transistors. Basically, it will turn on when the gate voltage exceeds the threshold voltage, and the desired output state is configured by turning the device off and on rapidly.

The device utilizes 4-terminal full-chop operation to achieve dual switches of two isolated pair load and output sides, while at the same time providing fair EMI performance. Besides, this device is designed with a built-in regulator, which can ensure stable performance for the device and suit for the need of accuracy system. As for the connectivity, there are several choices, such as natural lead, air gap, and standard flatpad.

More specially, the power part of the S8522BA can increase the current flow from source-drain connections to multiple load-source connections, and the switching speed is fast enough to reduce the heat within a short period of time. The internal protection circuit also helps to minimize the voltage conversion impact. In addition to these features, this device also has the capability to self-recover under over current protection, improving the reliability of the system. Moreover, its wide operating voltage range makes the S8522BA suitable for a large variety of applications.

To sum up, the S8522BA is a multifunctional SiC power device with two application fields, including electrical switch for E/HEV power management systems and alternator for electric drives. Being able to provide 4-terminal full-chop operation, fast switching speed, wide operating voltage range, built-in regulator, and internal protection circuit, the device is a cost-effective and efficient solution to meet various types of requirements.

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