FAN9612MX

Overview

The FAN9612MX is an interleaved dual Boundary-Conduction-Mode (BCM) Power-Factor-Correction (PFC) controller manufactured by onsemi. It operates two parallel-connected boost power trains 180 degrees out of phase to enhance performance. The device supports AC input voltages ranging from 85 to 265 VAC and delivers a regulated DC output voltage of 400 V. Designed for high efficiency, it achieves up to 97% efficiency with an output current capability of 1 A and output power of 400 W. The controller utilizes a Boost topology and is housed in an SOIC-16 package suitable for surface mount installation.

Feature Summary

• Interleaved dual BCM control architecture operating two parallel boost stages 180 degrees out of phase
• Supports wide-range universal AC input voltage operation from 85 to 265 VAC
• Generates a stable 400 V DC output suitable for high-power applications
• Optimized for high conversion efficiency reaching up to 97%

Applications

• 400W AC to DC power supplies for wired network infrastructure
• 400V DC to DC single-output power systems for wired networks
• High-efficiency power factor correction stages in industrial equipment

Procurement Notes

Verify the specific suffix 'MX' against the manufacturer's official datasheet to confirm pinout compatibility and thermal specifications. Ensure the ordering information matches the exact package type required for your PCB layout. Cross-reference the RoHS compliance status with the latest regulatory documentation provided by onsemi before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring interleaved PFC solutions to reduce input ripple current and improve thermal distribution across components. The 180-degree phase shift between the two boost trains makes it suitable for applications demanding higher power density and improved power factor compared to single-phase designs. Ensure the design accommodates the 400 V output requirement and associated safety isolation standards.

Part Context

The FAN9612MX belongs to the FAN9611 series of power management ICs focused on power factor correction. It serves as a specialized controller within onsemi's portfolio for efficient energy conversion. This part is distinct from general-purpose PFC controllers due to its specific interleaved dual-channel architecture designed for higher power levels in compact form factors.

Replacement Considerations

Consult onsemi technical documentation for direct cross-references. Verify electrical parameters such as switching frequency and operating temperature range against alternative BCM controllers. Ensure any substitute maintains the interleaved dual-channel functionality and 400 V output capability.