FAN7930CMX-G

Overview

The FAN7930CMX-G is a critical conduction mode (CrM) power factor correction controller manufactured by onsemi. It operates within an input voltage range of 13 V to 20 V and supports a maximum switching frequency of 300 kHz. The device is housed in an SOP-8 package and functions as a single-channel driver with an output current capacity of 500 mA. Designed for surface mount technology, it ensures reliable performance across an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Integrates an 800V high-voltage startup circuit to eliminate external startup resistors, reducing system cost and power consumption.
• Employs valley switching technology to minimize switching losses and enhance efficiency across wide input voltage ranges.
• Utilizes variable on-time control methods to achieve total harmonic distortion levels lower than traditional CrM boost PFC integrated circuits.

Applications

• High-performance power supply designs requiring efficient power factor correction
• Boost PFC applications operating in critical conduction mode
• LED lighting driver systems utilizing single-stage flyback topologies

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices or lifecycle changes prior to finalizing procurement plans. Ensure the ordering part number matches the exact functional requirements of the target design.

Selection Notes

Select this component for designs prioritizing low harmonic distortion and reduced component count. The integrated high-voltage startup simplifies the bill of materials by removing external resistors. Verify that the application requires critical conduction mode operation rather than continuous conduction mode. Ensure the thermal management strategy accommodates the specified operating temperature range.

Part Context

This controller belongs to the FAN7930 series of power factor correction devices. The series includes variants such as the FAN7930B designed for different operational modes. These components are engineered to meet stringent efficiency standards while maintaining cost-effectiveness in consumer and industrial power supplies.

Replacement Considerations

Public confirmed substitute part numbers: FL7930CMX-G.