{"product_id":"fsq321","title":"FSQ321","description":"\u003ch2\u003eonsemi FSQ321 Flyback Switching Controller IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eFSQ321\u003c\/strong\u003e is a high-performance isolated flyback switching controller from onsemi's FPS™ (Fairchild Power Switch) series, designed for offline AC-DC power conversion applications up to 12W. This integrated controller combines a 650V power MOSFET with advanced protection features, making it ideal for compact, cost-effective power supply designs in industrial, consumer, and telecommunications equipment.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 650V Power MOSFET:\u003c\/strong\u003e Reduces component count and board space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12W Output Power:\u003c\/strong\u003e Optimized for low-to-medium power applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Current limiting, over-load, over-temperature, and over-voltage safeguards ensure reliable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e 8V to 20V supply voltage, -40°C to 85°C ambient temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Synchronization:\u003c\/strong\u003e 55kHz to 67kHz switching frequency with sync capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough-Hole 8-DIP Package:\u003c\/strong\u003e Easy assembly and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAC-DC adapters and chargers\u003c\/li\u003e\n\u003cli\u003eAuxiliary power supplies\u003c\/li\u003e\n\u003cli\u003eStandby power for appliances\u003c\/li\u003e\n\u003cli\u003eIndustrial control systems\u003c\/li\u003e\n\u003cli\u003eLED driver circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComplete Technical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eonsemi\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003eFPS™\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003e | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOutput Isolation\u003c\/td\u003e \t\u003ctd\u003eIsolated\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eInternal Switch(s)\u003c\/td\u003e \t\u003ctd\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Breakdown\u003c\/td\u003e \t\u003ctd\u003e650V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eTopology\u003c\/td\u003e \t\u003ctd\u003eFlyback\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Start Up\u003c\/td\u003e \t\u003ctd\u003e12 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e8V ~ 20V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eDuty Cycle\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eFrequency - Switching\u003c\/td\u003e \t\u003ctd\u003e55kHz ~ 67kHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePower (Watts)\u003c\/td\u003e \t\u003ctd\u003e12 W\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eFault Protection\u003c\/td\u003e \t\u003ctd\u003eCurrent Limiting, Over Load, Over Temperature, Over Voltage\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eControl Features\u003c\/td\u003e \t\u003ctd\u003eSync\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°C ~ 85°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eThrough Hole\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e8-DIP (0.300\", 7.62mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e8-DIP\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1761919810\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthenticity Guarantee:\u003c\/strong\u003e All FSQ321 units are sourced through authorized onsemi distribution channels with full manufacturer traceability and documentation. We support long lifecycle availability for your critical designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Support:\u003c\/strong\u003e Need design assistance, reference schematics, or application notes? Our engineering team provides comprehensive design-in support for power supply projects.\u003c\/p\u003e","brand":"onsemi","offers":[{"title":"Default Title","offer_id":51117327122721,"sku":"FSQ321","price":355904.94,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_ACDCCOS_8-DIP_620c5dc9-0ae2-4dae-8958-ef64b68f0d6f.jpg?v=1743672235","url":"https:\/\/hqickey.com\/de\/products\/fsq321","provider":"HQICKEY","version":"1.0","type":"link"}