FSL4110LRN

AC DC Converters, Offline Switchers Overview

The FSL4110LRN is an integrated Pulse Width Modulation (PWM) controller and 1000 V avalanche rugged SenseFET specifically designed for high input voltage offline Switching Mode Power Supplies (SMPS). It requires minimal external components, with the VCC supplied through an integrated high-voltage power regulator without an auxiliary bias winding. The device features a fixed frequency oscillator, under-voltage lockout (UVLO), leading edge blanking (LEB), optimized gate driver, internal soft start, temperature-compensated precise current source for loop compensation, and various protection circuits.

AC DC Converters, Offline Switchers Feature Summary

• Integrated PWM controller and 1000 V avalanche rugged SenseFET
• High-voltage power regulator eliminates need for auxiliary bias winding
• Includes UVLO, LEB, soft start, and comprehensive protection circuits

AC DC Converters, Offline Switchers Applications

• Offline Switching Mode Power Supplies (SMPS)
• AC to DC conversion systems
• High input voltage power supply designs

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'N' against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with required thermal management and PCB layout guidelines for high-voltage applications. Cross-reference the exact part number with authorized distributors to confirm availability and authenticity.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-efficient flyback converter designs requiring reduced bill of materials and PCB size. It is suitable for applications needing high input voltage handling up to 460 VRMS. Consider its integrated regulation capabilities when minimizing external passive component count is a priority.

AC DC Converters, Offline Switchers Part Context

This device belongs to onsemi's SenseFET series, combining power switching and control logic in a single package. It replaces discrete MOSFET and PWM controller solutions, offering improved efficiency and system reliability while reducing overall weight and manufacturing complexity for offline power supplies.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official cross-reference guides or manufacturer recommendations for compatible alternatives.