Green Mode Buck Switch FSL336LR

PublishTime：2021-10-26

This application note describes a detailed design method and procedure for a buck offline converter. Design consideration and formula are presented. The FSL336LR is designed for non−isolated to pologies; such as buck, buck−boost converter, and non−isolated fly back converter. This device is an integrated current−mode Pulse Width Modulation (PWM) controller and SENSEFET. The integrated PWM controller includes: 10 V regulator for no external bias circuit, Under−Voltage Lockout (UVLO),Leading−Edge Blanking (LEB), optimized gate turn−on/turn−off driver, EMI attenuator, Thermal Shutdown(TSD), temperature−compensated precision current sources for optimized loop compensation, and fault−protection circuitry.
Protections include: Overload Protection (OLP),Over−Voltage Protection (OVP), and Feedback Open−Loop Protection (FB_OLP). FSL336LR offers stable soft−start performance during startup. The internal high−voltage startup switch and the Burst−Mode operation for extremely low operating current reduce the power loss in Standby Mode. As the result, this device is able to achieve power lossless than 25 mW with external bias and 120 mW without external bias at 230 VAC.
When compared to a linear power supply, the FSL336L Rreduces total size and weight; while increasing efficiency,productivity, and system reliability. Application of the FSL336LR is suitable for cost−effective platform designs.

Brand of Product：	ON Semiconductor
Part#：	FSL336LR More Part#
Product Category：	Green Mode Buck Switch More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	February, 2020
Version Number：	Rev. 2
Data Encoding：	AN-4159
Data Size：	627 KB

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