ISL6730CFUZ-T

Overview

The ISL6730CFUZ-T is a voltage mode 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 internally clamped gate drivers delivering 1.5A peak current to external power MOSFETs. It supports switching frequencies of 124kHz, suitable for AC/DC power systems up to 2kW with universal line input. The component includes comprehensive protection mechanisms such as cycle-by-cycle overcurrent, output overvoltage, undervoltage, and over-temperature protection.

Feature Summary

• Utilizes patent-pending negative capacitance technology to minimize zero-crossing distortion and reduce magnetic component size.
• Provides accurate input current shaping through an integrated current error amplifier.
• Features a highly reliable system with full protection against overcurrent, overvoltage, undervoltage, and over-temperature conditions.
• Designed for cost-effective converter designs without sacrificing performance due to small external component requirements.

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 'CFUZ-T' against official Renesas documentation to confirm package type (MSOP), tape-and-reel packaging status, and lead-free compliance. Ensure the part number matches the non-skip mode variant intended for your design requirements. Cross-reference with the latest datasheet revision to confirm active status or obsolescence before finalizing procurement plans.

Selection Notes

Select this component for applications requiring CCM PFC control with fixed skip thresholds disabled. The 124kHz switching frequency option allows for smaller passive components compared to lower frequency variants. Ensure the design accommodates the 1.5A peak gate driver capability and verify that the universal line input range aligns with target market specifications. Consider thermal management for the MSOP package under maximum load conditions.

Part Context

The ISL6730 series comprises four variants: ISL6730A, ISL6730B, ISL6730C, and ISL6730D. The 'C' designation indicates a non-skip mode operation at a 124kHz switching frequency. This distinguishes it from the 'A' and 'B' variants which include skip modes for light-load efficiency, and the 'D' variant which operates at 62kHz. The 'FUZ' suffix denotes the MSOP package, while '-T' indicates tape-and-reel packaging.

Replacement Considerations

Direct substitutes within the same family include ISL6730AFUZ-T (skip mode, 124kHz) or ISL6730DFUZ-T (non-skip, 62kHz). Verify functional compatibility regarding skip mode behavior and switching frequency before substitution. Other manufacturers may offer equivalent CCM PFC controllers, but pinout and electrical characteristics must be validated against the original datasheet.