{"product_id":"q0265r-high-voltage-switcher-for-offline-smps-ic","title":"Q0265R High-Voltage Switcher for Offline SMPS IC Used","description":"\u003ch2 dir=\"ltr\" class=\"mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eDescription\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe NCP1027 (marked \u003cstrong\u003eQ0265R\u003c\/strong\u003e on the package) is a \u003cstrong\u003eHigh-Voltage Switcher IC\u003c\/strong\u003e manufactured by onsemi, designed for medium-power offline switch-mode power supplies (SMPS) featuring low standby power. It targets output power levels from a few watts up to 15W in universal mains flyback applications, making it a popular choice for compact AC-DC adapters and auxiliary\/standby power supplies.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eUsing onsemi's proprietary high-voltage technology, the NCP1027 integrates a \u003cstrong\u003epower MOSFET together with a startup current source\u003c\/strong\u003e, both directly connected to the bulk capacitor — significantly reducing external component count compared to discrete flyback controller designs. To prevent lethal runaway under low input voltage conditions, it includes adjustable brown-out circuitry that blocks operation until a sufficient input level is reached. Current-mode operation combined with adjustable ramp compensation delivers strong performance across universal mains voltage ranges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eFor protection, an internal timer detects overload or short-circuit conditions and stops operation, ensuring safe auto-recovery via low duty-cycle burst mode. An integrated, auto-recovery Overvoltage Protection (OVP) continuously monitors the VCC level and temporarily shuts down driving pulses if the feedback loop runs away — giving the design robust self-protection against common failure modes.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e High-voltage switching regulator (integrated power MOSFET) for offline SMPS\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e onsemi\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePackage Marking:\u003c\/strong\u003e Q0265R\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-7 (through-hole)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTarget Output Power:\u003c\/strong\u003e Up to 15W (universal mains flyback)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eVCC Operating Range:\u003c\/strong\u003e ~7.9V–8.9V\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOutput Voltage (internal MOSFET rating):\u003c\/strong\u003e 700V\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIntegrated startup current source\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBrown-out protection, over-power protection, auto-recovery OVP and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eCommon Applications\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUniversal mains offline flyback power supplies\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAuxiliary\/standby power supplies (e.g., ATX and TV power supplies)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLow-power AC-DC adapters\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGeneral offline SMPS designs requiring low standby power consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003ePackage Includes\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1 x NCP1027 IC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"digilog.pk","offers":[{"title":"Default Title","offer_id":51657988210966,"sku":null,"price":0.0,"currency_code":"PKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/0764\/1366\/files\/Q0265RHigh-VoltageSwitcherforOfflineSMPSIC.jpg?v=1786108806","url":"https:\/\/digilog.pk\/products\/q0265r-high-voltage-switcher-for-offline-smps-ic","provider":"digilog.pk","version":"1.0","type":"link"}