ISL6730CFUZ

Overview

The ISL6730CFUZ is a Power Factor Correction (PFC) controller IC manufactured by Renesas Electronics Corporation. It utilizes a boost topology and operates in Continuous Conduction Mode (CCM). The device features a fixed switching frequency of 124 kHz and lacks the pulse skipping mode found in other variants. It includes an internally clamped 12.5V gate driver capable of delivering 1.5A peak current to external power MOSFETs. The component is housed in a 10-lead MSOP package with dimensions of 3.0 x 3.0 x 0.85 mm.

Feature Summary

• Utilizes patent-pending negative capacitance technology to minimize zero-crossing distortion and reduce magnetic component size.
• Provides comprehensive protection including cycle-by-cycle overcurrent, output overvoltage, input brownout, and over-temperature safeguards.
• Features an accurate current error amplifier for precise input current shaping and high power factor performance.

Applications

• AC/DC power systems up to 2kW
• Universal line input adapters
• Desktop computer power supplies

Procurement Notes

Verify the specific suffix CFUZ indicates the MSOP package variant. Confirm operational status as obsolete or active through official Renesas channels. Ensure compatibility with existing PCB footprints for 10-lead MSOP packages. Check for lead-free and RoHS compliance documentation. Validate that the non-skip mode operation aligns with system efficiency requirements.

Selection Notes

Select this model when a fixed 124 kHz switching frequency is required without light-load skip mode functionality. Compare against ISL6730AFUZ/BFUZ/C/D variants based on frequency and skip mode needs. Consider the MSOP package constraints for thermal management and board space. Evaluate the internal gate driver strength for driving external MOSFETs at the specified frequency.

Part Context

The ISL6730 series comprises four variants: A, B, C, and D. The 'C' designation specifically denotes the version operating at 124 kHz without automatic pulse skipping. This distinguishes it from the 'B' variant which switches at 62 kHz with skip mode, and the 'D' variant which switches at 62 kHz without skip mode. All share the same core PFC control architecture.

Replacement Considerations

Direct substitutes include ISL6730AFUZ, ISL6730BFUZ, and ISL6730DFUZ. Verify that the alternative variant's switching frequency and skip mode characteristics match the design specifications. Ensure pinout and package dimensions remain identical for direct replacement.