FAN7621SSJ

AC DC Converters, Offline Switchers Overview

The FAN7621SSJX is a PFM controller for half-bridge resonant converters in SOP-16. It features high-side gate drive with common-mode noise cancellation, accurate current-controlled oscillator, and frequency-limit circuit. Key parameters include 300 kHz operating frequency, 50% max duty cycle, 24 V output voltage, 8 A output current, and 192 W output power. Operating temperature range is -40°C to +130°C. Protection functions include OVP, OCP, AOCP, and TSD.

AC DC Converters, Offline Switchers Feature Summary

• Variable frequency control with 50% duty cycle for half-bridge resonant converter topology
• High efficiency through zero voltage switching (ZVS)
• Fixed dead time of 350ns
• Auto-restart operation for all protections with external LVCC

AC DC Converters, Offline Switchers Applications

• PDP and LCD TVs
• Desktop PCs and Servers
• Adapters
• Telecom Power Supplies
• Video Game Consoles

AC DC Converters, Offline Switchers Procurement Notes

Verify end-of-life status as the component is marked obsolete by onsemi. Confirm availability through authorized distributors or secondary markets. Check RoHS compliance details and ensure the SOP-16 package matches design requirements. Validate that the specific suffix aligns with intended application needs before procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this controller for designs requiring high-efficiency half-bridge resonant topologies. Ensure compatibility with ZVS operation and verify input voltage ranges up to 400V. Consider thermal management for operation up to 130°C. Confirm protection thresholds meet system safety requirements.

AC DC Converters, Offline Switchers Part Context

Part of the FAN7621S series from onsemi, designed for AC/DC conversion applications. Belongs to PMIC category under power management ICs. Manufactured using Si technology. The series includes variants like FAN7621BSJX and FAN7621SJX with similar functionalities but potentially different packaging or specifications.

AC DC Converters, Offline Switchers Replacement Considerations

FAN7621SJX is a confirmed substitute within the same family. Verify pinout compatibility and electrical parameter alignment before substitution. Check datasheet revisions for any functional differences between original and replacement parts.