FAN7930MX

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

FAN7930MX, a PMIC – PFC (Power Factor Correction) chip, is widely used to convert ac-input to pre-regulated dc-output in cost-sensitive applications, such as information home appliance, instrument and small office equipment, etc. It provides high efficiency and up to 95.3% with its high performance, flexible features and full protection.

Power Factor Correction (PFC) is an electrical power conversion technique used to improve the input power factor of the power supply, which can eliminate electric surges or interferences produced by the electric appliance, maximize the electric power network efficiency, and lower the electric bills. The main goal of Power Factor Correction is to reduce the power loss of a power system by regulating the input current of an AC-AC, AC-DC or DC-AC power supply in order to acquire an input current, which matches the generality nature of the power source.

The FAN7930MX provides an integrated PFC stage with a continuous, inductor-based PFC controller solution, instead of the common finite-on-time controllers. The integrated PFC stage achieves a power factor correction (PFC) of up to 95.3% with a single stage, which is 2~5 times higher than the traditional half-bridge or full-bridge PFC. Furthermore, using the FAN7930MX in a power supply circuit creates a system whose standby power consumption is minimized, significantly reducing the power dissipation and carbon footprint of the system.

Work Principle:

The FAN7930MX converts ac-input to pre-regulated dc-output in cost-sensitive applications. The FAN7930MX achieves high efficiency with its integrated complete PFC control function and adjustment free control by sensing the line voltage, line current and frequency signal of the power source. Any variation on the line voltage and line current signal is controlled by the PFC controller in order to attain optimal power conversion. The FAN7930MX’s cycle-by-cycle current limit function offers better system stability and protection. The FAN7930MX provides adjustable operating frequency up to 650kHz and better EMI performance.

The FAN7930MX’s main applications include flyback type AC/DC power supplies, multiple output AC/DC power supplies, active power factor correction (PFC) pre-regulation, a fuse and an ESD protection circuit to keep the circuit drives safe. It also offers low-cost solutions for small-power AC/DC applications. The FAN7930MX’s combination of high efficiency, reliable protection and minimal complexity makes it attractive for many cost-sensitive applications.

Conclusion:

In order to make ac-input to pre-regulated dc-output conversion more efficient and cost-friendly, the FAN7930MX achieves 92% efficiency with its integrated complete Power Factor Correction control function and is the ideal choice for high performance and cost savings. The FAN7930MX provides adjustable operating frequency up to 650kHz and better EMI performance, offering a low-cost solution for small-power AC/DC applications.

The specific data is subject to PDF, and the above content is for reference