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FAN7621 - PFM Controller

Datasheet Summary

Description

The FAN7621 is a pulse frequency modulation controller for high efficiency half

bridge resonant converters.

Offering everything necessary to build a reliable and robust resonant converter, the FAN7621 simplifies designs and improves productivity, while improving performance.

Features

  • Variable Frequency Control with 50% Duty Cycle for Half.
  • bridge Resonant Converter Topology.
  • High Efficiency through Zero Voltage Switching (ZVS).
  • Fixed Dead Time (350 ns).
  • Up to 300 kHz Operating Frequency.
  • Pulse Skipping for Frequency Limit (Programmable) at Light.
  • Load Condition.
  • Remote On/Off Control Using CON Pin.
  • Protection Functions: Over.
  • Voltage Protection (OVP), Overload Protection (OLP), Over.
  • Current Protection (OCP), Ab.

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Datasheet preview – FAN7621

Datasheet Details

Part number FAN7621
Manufacturer ON Semiconductor
File Size 761.75 KB
Description PFM Controller
Datasheet download datasheet FAN7621 Datasheet
Additional preview pages of the FAN7621 datasheet.

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Full PDF Text Transcription

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DATA SHEET www.onsemi.com PFM Controller for Half-Bridge Resonant Converters FAN7621 SOP16 CASE 565BF Description The FAN7621 is a pulse frequency modulation controller for high−efficiency half−bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FAN7621 simplifies designs and improves productivity, while improving performance. The FAN7621 includes a high−side gate−drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft−start, and built−in protection functions. The high−side gate−drive circuit has a common−mode noise cancellation capability, which guarantees stable operation with excellent noise immunity.
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