{"product_id":"l5991","title":"L5991","description":"\u003ch2\u003eSTMicroelectronics L5991 PWM Controller IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eL5991\u003c\/strong\u003e is a high-performance PWM controller IC from STMicroelectronics, designed for boost and flyback topology applications. This versatile controller supports switching frequencies up to 1MHz and operates with a supply voltage range of 10V to 20V, making it ideal for a wide range of power conversion applications in aerospace, automotive, industrial, telecommunications, medical, and consumer electronics.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Switching Frequency:\u003c\/strong\u003e Up to 1MHz for compact transformer design and reduced component size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Supply Voltage Range:\u003c\/strong\u003e 10V to 20V operation with 15V start-up voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Duty Cycle:\u003c\/strong\u003e 93% maximum duty cycle for efficient power conversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Topologies:\u003c\/strong\u003e Supports both boost and flyback configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Current limiting and over-voltage protection for reliable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Control Features:\u003c\/strong\u003e Frequency control, soft start, and synchronization capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e -40°C to 150°C (TJ) for demanding environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Package:\u003c\/strong\u003e Through-hole 16-DIP (0.300\", 7.62mm) for easy prototyping and production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Meets environmental standards for global markets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThe L5991 is well-suited for isolated and non-isolated DC-DC converters, battery chargers, LED drivers, and auxiliary power supplies across multiple industries including aerospace, automotive, industrial automation, telecommunications infrastructure, medical equipment, and consumer electronics.\u003c\/p\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\u003eSTMicroelectronics\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eTube | \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\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Breakdown\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eTopology\u003c\/td\u003e \t\u003ctd\u003eBoost, Flyback\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Start Up\u003c\/td\u003e \t\u003ctd\u003e15 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply (Vcc\/Vdd)\u003c\/td\u003e \t\u003ctd\u003e10V ~ 20V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eDuty Cycle\u003c\/td\u003e \t\u003ctd\u003e93%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eFrequency - Switching\u003c\/td\u003e \t\u003ctd\u003eUp to 1MHz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePower (Watts)\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eFault Protection\u003c\/td\u003e \t\u003ctd\u003eCurrent Limiting, Over Voltage\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eControl Features\u003c\/td\u003e \t\u003ctd\u003eFrequency Control, Soft Start, Sync\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°C ~ 150°C (TJ)\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\u003e16-DIP (0.300\", 7.62mm)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e16-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\u003ch3\u003eWhy Choose the L5991?\u003c\/h3\u003e\u003cp\u003eThe L5991 offers design engineers a proven, reliable PWM controller solution with comprehensive protection features and flexible topology support. Its high switching frequency capability enables smaller, more efficient power supply designs, while the wide operating temperature range ensures reliable performance in harsh environments. Backed by STMicroelectronics' long lifecycle commitment and full traceability, the L5991 is an excellent choice for both new designs and long-term production requirements.\u003c\/p\u003e","brand":"STMicroelectronics","offers":[{"title":"Default Title","offer_id":51117179961633,"sku":"L5991","price":7.01,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/IC_ACDCCOS_DIP16_SOT38-1Pkg_10cf31c2-bff8-424d-b2b9-376e2c601067.jpg?v=1743669757","url":"https:\/\/hqickey.com\/de\/products\/l5991","provider":"HQICKEY","version":"1.0","type":"link"}