FSFR2100

AC DC Converters, Offline Switchers Overview

The FSFR2100 is a highly integrated power switch designed for half-bridge resonant converters. It features an internal silicon half-bridge with a maximum output voltage of 600V and a switching frequency up to 300 kHz. The device operates within a supply voltage range of 11.3 V to 25 V, supporting a maximum duty cycle of 52%. It provides 200 W of output power in a 9-pin SIP through-hole package. The component functions across a temperature range of -40°C to +130°C junction temperature.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-side and low-side power switches into a single half-bridge topology
• Includes built-in protection mechanisms for overcurrent, overload, overtemperature, and overvoltage
• Supports programmable frequency control for resonant converter applications

AC DC Converters, Offline Switchers Applications

• Half-bridge resonant DC-to-DC converters
• Auxiliary power supply designs
• High-efficiency AC-to-DC conversion systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific ordering suffix against current onsemi documentation, as integration processes may have altered part nomenclature from previous Fairchild Semiconductor designations. Confirm availability status, as this component has been identified as end-of-life or obsolete in certain distributor records. Ensure the selected variant matches the required package and electrical specifications for the target application.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a compact, integrated solution for half-bridge topologies. The internal switch resistance and voltage ratings must align with the system's power requirements. Consider the thermal management capabilities given the operating temperature limits. Verify compatibility with the desired switching frequency and control loop characteristics before finalizing the design.

AC DC Converters, Offline Switchers Part Context

The FSFR2100 belongs to the FPS (Fairchild Power Switch) series, which are optimized for high-efficiency power conversion. This series integrates controller logic with power switches to reduce component count and improve reliability. The product falls under the AC/DC converter category within onsemi's power management portfolio, targeting industrial and consumer applications.

AC DC Converters, Offline Switchers Replacement Considerations

Check for updated part numbers due to potential nomenclature changes during the onsemi-Fairchild integration. Verify if alternative FPS series devices offer similar half-bridge configurations. Ensure any substitute maintains the same pinout and electrical characteristics for direct replacement.