FAN7930M

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The FAN7930M is an integrated power factor correction (PFC) power management integrated circuit (PMIC) used to regulate switched-mode power supplies which require stable and reliable power. This IC allows designers to achieve ultimate power factor performance while maintaining stringent safety and operational standards. The FAN7930M includes an integrated pulse-width modulation (PWM) controller and a high-side, low-side, and ground shorts protection features to protect against current overloads and overvoltage. The FAN7930M also offers a symmetrical cut-off fuction to increase power factor to 0.999.

PFC has become a critical part of the design elements used in manufacturing industries, and is commonly used in the electrical grid. It works by correcting the power factor of an electric circuit to keep the voltage and current in phase. By using PFC, the voltage and current waveforms are brought into equilibrium, reducing harmonics and power losses in the circuit. This way, the ability to power electronics is improved, and overall efficiency is increased.

The FAN7930M offers an innovative design solution for both off-line and isolated Pulse Width Modulation (PWM) controlled power supplies. The main features of the FAN7930M include built in integrated power factor correction, Peak Current Mode control with over voltage protection, adjustable soft start, frequency synchronization, auto-restart and undervoltage lockout capabilities. All these features can be tailored to match a variety of different designs. The PFC part of the device includes Automatic Power Factor Correction(APFC) with a maximum efficiency of 95% and maximizes the active power and apparent power ratio, while reducing line current THD and output power ripple.

The FAN7930M also includes an integrated high-side driver which is able to provide load protection and is useful for better switching performance of Power Devices. In addition, it not only features a regular overvoltage protection, but also offers an adjustable voltage clamp for preventing damage from negative voltage events. This PWM can be used as a limiter for overvoltage and as a fast negative voltage protection.

The FAN7930M is highly versatile and suitable for a wide array of applications. It is typically used in small to medium size power supplies and is usually employed in half bridge circuits. The device is also suitable for both leading edge and trailing edge modulation and is suitable for multiple output, single output, and stepped main power applications. Furthermore, the device is a perfect choice for EMI compliance.

This IC is inherently safe and stable, enabling designers to develop products that are reliable and cost-effective. In addition to its features, it has excellent thermal performance with a low thermal resistance and very low di/dt capabilities. This helps to reduce switching losses, improve efficiency and prolong product life.

In summary, the FAN7930M Power Factor Correction PMIC is a powerful and versatile solution for off-line and isolated power supplies. It is suitable for a wide range of applications that require precise and efficient power conversion. With its various features, it ensures stable and reliable operation while allowing designers to create cost-effective, highly efficient power systems.

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