{"product_id":"isolated-flyback-converter-with-18v-28v-input-and-12v-output","title":"Isolated Flyback Converter with 18V-28V Input and 12V Output","description":"\u003cp\u003eThe project presented here is a micropower no-opto isolated flyback converter featuring the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLT8304\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echip from Analog Devices. This circuit outputs\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand maintains tight regulation with a load current from\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e10mA up to 1A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand over an input voltage from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e18V to 28V\u003c\/strong\u003e. The project needs less than 0.5% of its full output power as a minimum load to maintain good output voltage regulation. The transformer leakage inductance causes a voltage spike on the primary side after the power switch turns off. To limit this leakage inductance spike within the MOSFET voltage rating of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e150V\u003c\/strong\u003e, an RC snubber, and a TVS clamp are installed to dampen the ringing and clamp the MOSFET drain voltage to a safe level.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Input 18V to 28V DC\u003c\/li\u003e\n\u003cli\u003eOutput 12V 10mA-1A\u003c\/li\u003e\n\u003cli\u003eLow Ripple Burst Mode Operation at Light Load\u003c\/li\u003e\n\u003cli\u003eMinimum Load \u0026lt; 0.5% (Typ) of Full Output\u003c\/li\u003e\n\u003cli\u003eAccurate EN\/UVLO Threshold and Hysteresis\u003c\/li\u003e\n\u003cli\u003eUndervoltage Lockout Accurate 1.214V Threshold\u003c\/li\u003e\n\u003cli\u003eInternal Compensation and Soft-Start\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation for Output Diode\u003c\/li\u003e\n\u003cli\u003eOutput Short-Circuit Protection\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 56.36 x 17.46 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46909307682988,"sku":"G119","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/G119A.jpg?v=1786355651","url":"https:\/\/dotfry.com\/products\/isolated-flyback-converter-with-18v-28v-input-and-12v-output","provider":"dotfry","version":"1.0","type":"link"}