IW663-02-SO8

DC DC Switching Controllers Overview

The iW663-02-SO8 is a secondary-side synchronous rectification and rapid charge interface controller designed for AC/DC power supplies. It integrates an SR controller with digital adaptive turn-off control and supports Rapid Charge protocols including Qualcomm Quick Charge 3.0, 2.0, and Apple 2.4A. The device utilizes XM-Comm technology for transformer-based communication, eliminating optocouplers. It features high-voltage drain sensing up to 100V, dual over-temperature protection, and intelligent low-power mode for less than 20mW no-load consumption. The component is housed in an 8-pin SOIC package.

DC DC Switching Controllers Feature Summary

• Integrates synchronous rectifier controller and rapid charge interface in a single IC
• Enables optocoupler-less design via proprietary XM-Comm digital communication
• Supports multiple fast charging standards including QC 3.0, QC 2.0, and Apple 2.4A
• Provides lossless MOSFET VDS sensing with adaptive turn-off timing

DC DC Switching Controllers Applications

• Travel adapters supporting Qualcomm Quick Charge 3.0 and 2.0
• AC/DC power supplies requiring Apple 2.4A fast charging
• High-efficiency wall chargers minimizing bill of materials
• Compact power adapters utilizing transformer-based feedback

DC DC Switching Controllers Procurement Notes

Verify the specific suffix '02' against official Renesas documentation to confirm pinout and feature set compatibility. Confirm current availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the SO-8 package variant matches your PCB footprint requirements. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this component when designing AC/DC converters that require integrated fast charging negotiation without external optocouplers. It is suitable for applications needing support for QC 3.0, QC 2.0, and Apple 2.4A protocols simultaneously. Consider its high-voltage drain sensing capability for designs operating with primary-side regulation complexities. Evaluate the thermal performance requirements given the integrated temperature protection features.

DC DC Switching Controllers Part Context

The iW663 series belongs to Renesas' portfolio of secondary-side controllers for flyback converters. These devices are engineered to simplify power supply designs by combining synchronization logic with communication interfaces. The iW663-02 specifically targets consumer adapter markets where size reduction and protocol flexibility are critical for meeting modern fast-charging standards.

DC DC Switching Controllers Replacement Considerations

The iW662 is a related model supporting similar QC 3.0 and 2.0 protocols but may differ in specific interface configurations or supported additional standards. Verify functional equivalence regarding the XM-Comm implementation and gate driver specifications before substitution.

DC DC Switching Controllers FAQ

Does the iW663-02 eliminate the need for an optocoupler?

Yes, it uses Renesas' proprietary XM-Comm technology to communicate between the secondary and primary sides via the power transformer.

What fast charging protocols does this controller support?

It supports Qualcomm Quick Charge 3.0, Quick Charge 2.0, and Apple 2.4A charging standards.