STR-W6756N

AC DC Converters, Offline Switchers Overview

The STR-W6756N is a power IC for quasi-resonant type switching power supplies, incorporating a power MOSFET and a controller IC. It achieves high efficiency and low noise across the full load range via bottom-skip quasi-resonant operation. The device utilizes multi-mode control with three steps based on load conditions: intermittent oscillation in standby, bottom-skip QR under low to middle loads, and standard QR under middle to heavy loads. It features current-mode control and UVLO for standby signal switching.

AC DC Converters, Offline Switchers Feature Summary

• Multi-mode control optimizes efficiency and noise across full load ranges
• Integrates power MOSFET and controller IC for compact design
• Supports bottom-skip quasi-resonant operation for low-to-middle loads
• Includes UVLO for automatic or signal-switched standby modes

AC DC Converters, Offline Switchers Applications

• Quasi-resonant switching power supply systems
• High-efficiency power conversion applications
• Low-noise power supply designs

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific function set against the datasheet, as functions vary by product number within the series. Confirm package compatibility (TO-220F) and thermal requirements. Ensure the selected variant matches the required operational modes for your specific load profile. Cross-reference with the STR-X6700 series documentation for detailed electrical characteristics and pin configurations.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring high efficiency and low noise in quasi-resonant topologies. Consider the multi-mode control capabilities for varying load conditions. Verify that the integrated MOSFET ratings meet system voltage and current demands. Compare with the STR-W6700 series if different packaging is preferred.

AC DC Converters, Offline Switchers Part Context

Part of the STR-X6700 series from Sanken Electric USA Inc., designed for high-efficiency switching power supplies. The series integrates power MOSFETs and controllers to simplify design. The STR-W6756N specifically targets applications needing optimized performance across diverse load ranges through advanced quasi-resonant control techniques.

AC DC Converters, Offline Switchers Replacement Considerations

Check the STR-X6700 series datasheet for compatible variants. Verify functional equivalence regarding multi-mode control and package type (TO-220F). Ensure electrical parameters match system requirements before substitution.