PS9531L2-AX

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PS9531L2-AX Isolators - Gate Drivers Application Field and Working Principle

Isolator gate drivers are commonly used in electric power industry due to their advantages over traditional gate drivers. This is because they isolate the input signals from the output, and can carry high currents with a minimum of arcing and power loss. The PS9531L2-AX is a user-configurable, high-performance, 33-channel and 4 independent universal gate drivers designed for isolated, synchronous, or parallel topologies. With its integrated wide range of operating voltage, its versatile gate drivers dramatically improves system design flexibility and reduces system development cost.

Application Field

The PS9531L2-AX is commonly used in electric power grid and solar/wind energy conversion applications. It can be used as an isolating/active clamps for DC-to-DC conversion or power storage. It can also be used for motor or transducer drives, electrical energy delivery management, fault protection, and other electric power control. Additionally, the PS9531L2-AX can be used as an isolating amplifier and other card-level communication protocols to enable communication between multiple devices in machine-level systems.

Working Principle

The PS9531L2-AX utilizes an integrated configurable logic block (CLB) to isolate the input signals from the output. This allows the PS9531L2-AX to perform with high power efficiency and reliability in applications such as motor control, power conversion, and monitoring. As a result, the PS9531L2-AX can be used to deliver a maximum power output of up to 150A at 65V. The PS9531L2-AX utilizes a low-side driver and a top-side driver to provide efficient gate control and fault protection for high-voltage application.

The top-side and bottom-side driver are connected in parallel, enabling the PS9531L2-AX to directly control the gate voltage levels. Additionally, the PS9531L2-AX is designed to provide a wide range of operating voltages and offers high accuracy in control and data communication.

Furthermore, the PS9531L2-AX can provide a single-stage or multi-stage isolation between the input and output. This is achieved by controlling the current paths in both the high-side and low-side drivers, as well as by taking advantage of a variety of integrated features that can improve system reliability. These features include over-voltage protection, short-circuit protection, and dual-level open circuit protection.

The PS9531L2-AX also includes two internal, low-noise regulators that are adjustable in-system. These regulators are used to provide an adjustable bias voltage that ensures the gate driver is always operating within a specific voltage range. This ensures that the system operates at optimal performance, reduces power loss, and improves heat dissipation.

Conclusion

The PS9531L2-AX is a versatile and high-performance isolator gate driver designed for a variety of applications. It is designed for high power efficiency and reliability, and its integrated adjustable bias voltage regulators ensure optimal system performance. With its configurable logic block, it ensures improved control and data communication performance in high voltage applications.

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