Datasheet4U Logo Datasheet4U.com

FAN7621B - PFM Controller

General Description

The FAN7621B 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 FAN7621B simplifies designs and improves productivity, while improving performance.

Key Features

  • Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant Converter Topology High Efficiency through Zero Voltage Switching (ZVS) Fixed Dead Time (350ns) Up to 300kHz 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), Abnormal Over-Current Protection (AO.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
FAN7621 PFM Controller ON Semiconductor
FAN7631 PFM Controller ON Semiconductor
FAN7688 Advanced Secondary Side LLC Resonant Converter Controller ON Semiconductor
FAN7080-GF085 Half Bridge Gate Driver ON Semiconductor
FAN7083-GF085 High Side Gate Driver ON Semiconductor

Other Datasheets by Fairchild (now onsemi)

Part Number Description
FAN7621 PFM Controller
FAN7621S PFM Controller
FAN7601 Green Current Mode PWM Controller
FAN7601B Green Current Mode PWM Controller
FAN7602 Green Current Mode PWM Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
FAN7621B — PFM Controller for Half-Bridge Resonant Converters July 2010 FAN7621B PFM Controller for Half-Bridge Resonant Converters Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant Converter Topology High Efficiency through Zero Voltage Switching (ZVS) Fixed Dead Time (350ns) Up to 300kHz 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), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) Description The FAN7621B is a pulse frequency modulation controller for high-efficiency half-bridge resonant converters.