FSQ0765RWDTU

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PMIC, or power management integrated circuits, are used in one form or another in almost every electronic device. There are numerous power management integrated circuits available in the market today, each with its own unique set of features and applications. The FSQ0765RWDTU model is a power management integrated circuit (PMIC) specifically designed for offline switching applications. This article looks at the application field and working principle of the FSQ0765RWDTU AC DC converter.

The FSQ0765RWDTU is a monolithic switching PMIC optimized for offline power supplies in consumer, industrial and medical systems. It incorporates two sets of integrated power switches, a synchronous rectification switching controller, and AC power monitoring. In addition, it features an active-low power-on reset (POR) circuit and an undervoltage lockout (UVLO) circuit. It also offers integrated precision reference and adjustable soft-start functions to reduce stress on input power rails.

The FSQ0765RWDTU offers a wide range of features that make it suitable for a variety of AC/DC offline switching applications. It can be used for isolated flyback power supplies, isolated forward converters, forward converter based auxiliary power supplies, isolated buck converters, and single ended primary inductance converters (SEPIC). Other applications include inverters, bidirectional converters, DC-DC buck-boost converters, and unity-gain power supplies.

The two integrated power switches in the FSQ0765RWDTU integrate both the low-side and high-side switches, as well as body diodes. This eliminates the need for external low- and high-side discrete devices, saving both space and cost. The integrated synchronous rectification switching controller offers frequency foldback and an integrated ramp generator, allowing the device to be used for both constant-voltage and constant-frequency design solutions.

The FSQ0765RWDTU also equipped with an active-low power-on reset (POR) and an undervoltage lockout (UVLO) circuit. The POR circuit triggers a reset signal when the power source is inadequate, while the UVLO circuit prevents the device from operating when the input voltage is too low. During startup, the adjustable soft-start function limits the inrush current to reduce stress on the input power rails.

The FSQ0765RWDTU is primarily used in AC/DC offline switching applications, but it can also be used in automotive and industrial applications. With its small footprint and high integration, it is suitable for a wide range of applications in consumer, medical, and industrial systems.

In conclusion, the FSQ0765RWDTU is a monolithic power management integrated circuit specifically designed for AC/DC offline switching applications. It offers a range of features such as integrated power switches, a synchronous rectification switching controller, active-low power-on reset (POR) circuit, undervoltage lockout (UVLO) circuit, and an adjustable soft-start function. It is suitable for a wide range of applications in consumer, medical, and industrial systems.

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