ISL6730BFUZ

Overview

The ISL6730BFUZ is a voltage mode Power Factor Correction (PFC) controller IC utilizing boost topology, designed for AC/DC power systems up to 2kW with universal line input. It operates in Continuous Conduction Mode (CCM) and features a fixed skip threshold for light-load efficiency improvement. The device includes an internally clamped 12.5V gate driver delivering 1.5A peak current. Key electrical parameters include a switching frequency of 62kHz, supply voltage range of 15V to 20V, and startup current of 106µA. It supports protection against overcurrent, overvoltage, and undervoltage.

Feature Summary

• Utilizes patent-pending negative capacitance technology to minimize zero-crossing distortion and reduce magnetic component size.
• Integrates cycle-by-cycle overcurrent, output overvoltage, and undervoltage protection for system reliability.
• Transitions into power-saving skip mode during light load conditions to enhance overall power efficiency.

Applications

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

Procurement Notes

Verify the specific suffix BFUZ corresponds to the MSOP-10 package and 62kHz frequency variant when sourcing. Confirm RoHS compliance and lead-free status as per manufacturer specifications. Check for obsolete status or end-of-life notifications from Renesas Electronics before finalizing procurement plans.

Selection Notes

Select this component for cost-effective PFC designs requiring CCM operation and universal input compatibility. The integrated gate driver simplifies external MOSFET drive requirements. Consider the fixed skip threshold feature if automatic light-load efficiency optimization is required for the target application profile.

Part Context

The ISL6730BFUZ belongs to the ISL6730 family of active PFC controllers from Renesas Electronics. This family includes variants A, B, C, and D, differentiated by switching frequencies and skip mode availability. The ISL6730B series specifically targets applications needing 62kHz operation with skip mode functionality.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data directly with Renesas Electronics technical support for compatible alternatives.