FL7930BMX

Overview

The FL7930BMX is a critical conduction mode (CrM) power factor correction (PFC) controller manufactured by onsemi, formerly Fairchild Semiconductor. It operates with a maximum switching frequency of 350 kHz and supports a supply voltage range from 20 V to 24 V. The device features zero-power detection for enhanced efficiency at light loads. It is housed in an 8-pin SOP package with dimensions of 5 x 4 x 1.5 mm and functions within a temperature range of -40 °C to +125 °C.

Feature Summary

• Implements critical conduction mode control for high-efficiency power factor correction
• Includes zero-power detection capability to minimize standby power consumption
• Designed for surface-mount installation in compact electronic assemblies

Applications

• LED street lighting power supplies
• General-purpose AC-DC adapters
• Consumer electronics power management systems

Procurement Notes

Verify the manufacturer designation, as the component was originally produced by Fairchild Semiconductor before its acquisition by onsemi. Confirm the specific suffix 'BMX' corresponds to the required 20–24 V operating voltage range and SOP-8 packaging. Ensure compatibility with the intended thermal environment given the specified operating temperature limits.

Selection Notes

Select this controller for applications requiring CrM PFC topology with moderate power levels. Compare against variants like FL7930CMX if a lower input voltage range (14–20 V) is sufficient for the design. Consider the 350 kHz maximum frequency when designing magnetic components to balance size and efficiency requirements.

Part Context

This component belongs to the FL7930B series of PFC controllers. It is functionally similar to the FAN7930 series but may differ in specific electrical characteristics or manufacturing origin. The part is categorized under Power Management ICs (PMIC) specifically for power factor correction applications.