ISL6731AFBZ

Overview

The ISL6731AFBZ is a Power Factor Correction (PFC) controller manufactured by Renesas Electronics Corporation. It operates in Continuous Conduction Mode (CCM) with a switching frequency range of 111kHz to 138kHz. The device supports a supply voltage of 15V to 20V and features an input current of 106 µA. It is designed for surface mount installation in a 14-SOIC package (0.154" width, 3.90mm). The operational temperature range extends from -40°C to 125°C.

Feature Summary

• Supports continuous conduction mode (CCM) power factor correction applications
• Integrated fixed-frequency PWM control architecture
• Designed for high-efficiency AC-DC power conversion systems

Applications

• Power factor correction stages in AC-DC adapters
• Server and workstation power supplies
• Telecommunications equipment power modules

Procurement Notes

Verify the specific suffix 'AFBZ' to confirm the 111kHz-138kHz frequency variant. Confirm package type is 14-SOIC. Check component status as discontinued or obsolete before finalizing procurement plans. Ensure compatibility with existing PCB footprints and thermal management requirements for the SOIC-14 package.

Selection Notes

Select this component when a CCM PFC controller with a higher switching frequency range (up to 138kHz) is required compared to the ISL6731BFBZ variant. Consider the 14-SOIC package constraints and the -40°C to 125°C operating temperature range. Verify that the 15V-20V supply voltage range aligns with the system's auxiliary power design.

Part Context

The ISL6731 series includes variants like the ISL6731BFBZ which operates at a lower frequency range (56.5kHz-70.7kHz). Both share the same CCM control topology and 14-SOIC packaging but differ in switching frequency specifications. The AFBZ suffix denotes the higher frequency option within this product family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The component status is listed as discontinued.