FM3783GA
product description
FM3783 is a low-power primary-side feedback (PSR) switching power supply chip, which integrates a high-power BJT tube, suitable for isolated high-efficiency low-power portable device charger applications. FM3783 adopts unique primary-side feedback control technology with constant current and constant voltage function, and unique light-load frequency modulation technology to reduce the chip's own power consumption under light load to achieve high-efficiency applications. FM3783 has output line loss compensation technology to ensure sufficient output power under high current. In addition, FM3783 also integrates over-temperature protection, VCC under-voltage protection, output over-voltage protection, C pole open circuit protection and other technologies. FM3783 adopts compact SOP-7 package, which is convenient for system design and wiring.
main feature
• Integrated high-power BJT tube
• High-precision constant voltage and constant current control
• Standby power consumption is less than 75mw
• Output short circuit protection
• Output overvoltage protection
• Input undervoltage protection
• Over temperature protection
• Few peripheral components for primary side feedback
• SOP-7 package
Scope of application
• Chargers and adapters for portable devices such as mobile phones
• LED drive power
• Other auxiliary power
• FM3783GA is suitable for 5V 2.1A solution and meets the six-level energy efficiency standard (FM9919B is recommended)
• FM3783GB is suitable for 5V 2.4A solution and meets the six-level energy efficiency standard (FM9920B is recommended)
Related documents
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