STK760-301-E

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Introduction:

The STK760-301-E is a power factor correction (PFC) device used in PMIC (Power Management IC) applications. The device is designed to maximize the efficiency of a power supply by effectively managing the input current waveform. The STK760-301-E is a two-stage power switch, with a pre-regulator stage that operates at constant peak current and a high-performance buck converter stage. It includes over-current, under-voltage, and reverse-polarity protection features.

Application Field:

The STK760-301-E is suitable for a wide range of PMIC applications including AC-DC and DC-DC converters. It can also be used in automotive and telecom systems, as well as consumer and industrial products. The device is most suitable for use in applications where a high efficiency power system is required with minimal thermal generation.

Working Principle:

The STK760-301-E is designed to improve the power factor of an AC-DC or DC-DC converter by controlling the current waveform. In a two-stage converter, the pre-regulator stage operates at a constant peak current. This ensures that the power supply does not over-draw current from the grid or power source during peak power demand. In the buck converter stage, the device provides active power factor correction by controlling the switching frequency and pulse width, as well as regulating the current waveform.

The device is capable of achieving over 98 percent energy efficiency when used in combination with a suitable transformer design. This greatly reduces the power losses associated with a power supply, providing a more efficient system. Additionally, the device includes a range of protection features, such as over-current, under-voltage, and reverse-polarity protection, to ensure a safe and reliable power system design.

Conclusion:

The STK760-301-E is an advanced power factor correction device designed for use in PMIC applications. It provides a high level of efficiency and protection for power supplies, allowing them to support a wide range of consumer, automotive, and industrial applications. The device is capable of achieving over 98 percent efficiency when used in combination with a suitable transformer design, greatly reducing power losses when compared to conventional designs.

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