ISL6730DFUZ

Overview

The ISL6730DFUZ is a voltage mode power factor correction (PFC) controller utilizing a boost topology. It operates in Continuous Conduction Mode (CCM) at a fixed switching frequency of 124kHz. The device features an internally clamped 12.5V gate driver delivering 1.5A peak current to external MOSFETs. It supports universal line input AC/DC systems up to 2kW and includes comprehensive protection against overcurrent, overvoltage, and thermal faults.

Feature Summary

• Utilizes patent-pending negative capacitance technology to minimize zero-crossing distortion
• Provides accurate input current shaping via a dedicated current error amplifier
• Integrates full system protection including cycle-by-cycle overcurrent and output overvoltage

Applications

• Desktop computer AC/DC adaptors
• Laptop computer AC/DC adaptors
• TV AC/DC power supplies
• AC/DC brick converters

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity for the MSOP-10 form factor. Ensure compatibility with existing design specifications as this part may require substitution strategies for ongoing production needs.

Selection Notes

Select this model for designs requiring fixed 124kHz CCM operation without skip mode functionality. It is suitable for applications prioritizing simplified control loops over light-load efficiency improvements found in other variants within the series.

Part Context

Part of the ISL6730 family of active PFC controllers. Distinct from ISL6730B which operates at 62kHz and includes skip mode, the ISL6730D offers higher frequency switching for reduced magnetic component size while maintaining continuous conduction mode characteristics.

Replacement Considerations

ISL6730CFUZ serves as a direct functional substitute within the same series offering identical non-skip CCM operation.