PS9553-AX

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The PS9553-AX is an isolated gate driver designed for switch mode power supply (SMPS) applications. It consists of a DC to DC power converter, gate drivers and a signal isolation barrier. It offers a maximum input voltage of 950 VDC and a maximum output voltage of 48 VDC. The device has a built-in current-limiting protection circuit to protect the driver from over-current conditions.

The PS9553-AX provides protection against breakdown and short circuits, as well as over-current protection for the gate drivers. It also provides the maximum current of 9 amps for the gate drivers. The device is capable of operating at temperatures up to +105°C. Additionally, the device has a high speed switch with a frequency of up to 75 kHz. The device features built-in isolation rated to 5kV rms and is also capable of providing a soft-start for controlled start-up.

The PS9553-AX is suitable for use at high switching frequencies up to 75kHz, and in applications that require high current accuracy and repeatability such as SMPS, motor control, and HVAC systems. It can be used in a wide range of applications including telecom, industrial, medical, and automotive.

The PS9553-AX features an integrated signal isolation barrier that prevents ground noise from entering the control circuit. This ensures that the proper control signal is being transmitted to the gate drives, resulting in accurate and reliable power switching. The device also features built-in current limiting protection with a maximum current of 9 amps to protect the device from over-current conditions.

The PS9553-AX also includes a self-balancing voltage clamping feature to provide improved transient protection, and a fast turn-on time for improved power supply and system efficiency. The device features built-in fault diagnosis for diagnostic LED indication and built-in over-temperature protection for system reliability.

The working principle of the PS9553-AX is based on the power supply’s DC to DC converter. This converter provides power to the gate drivers which in turn control the logic states of the power supply-controlled circuit. The logic is then sent to the isolated gate drivers which, in turn, provide the necessary control signals for the power supply.

In summary, the PS9553-AX is an isolated gate driver designed for switch mode power supply. It consists of a DC to DC power converter, gate drivers and a signal isolation barrier. It offers a maximum input voltage of 950 VDC, maximum output voltage of 48 VDC and is capable of operating at temperatures up to +105°C. The device features built-in isolation rated to 5kV rms, a high speed switch with a frequency of up to 75 kHz, self-balancing voltage clamping, current limiting protection, fault diagnosis and over-temperature protection for improved system reliability.

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