{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER15HN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER15HN","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER15HN","factsUrl":"https://icboms.com/api/mcp/products/VIPER15HN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPer™ plus VIPER15HN, offline flyback switching regulator, 10 W, 800 V breakdown, 225 kHz, isolated output, 8-DIP 7-lead, through hole, -40°C to 150°C.","salesMarkdown":"## 10 W flyback with an 800 V avalanche MOSFET — the offline power stage The STMicroelectronics VIPER15HN is a monolithic offline flyback switching regulator from the VIPer™ plus series, integrating a 800 V avalanche-rugged power MOSFET with a PWM controller in a 7-lead DIP package. It delivers up to 10 W of isolated output power, switching at 225 kHz to shrink the transformer footprint. The device includes built-in fault protection — current limiting, over-temperature, and over-voltage — so the primary-side bill of materials stays lean. For new designs, ST's current VIPer™ plus portfolio offers functionally similar devices, but pin-compatibility is not guaranteed. ## Supply range and start-up sequencing The Vcc supply range is 8.5 V to 23.5 V, with a 14 V start-up threshold. This start-up voltage is typical for offline converters that charge the Vcc capacitor from the rectified DC bus through a start-up resistor; once the auxiliary winding takes over, the supply drops into the normal operating window. The 225 kHz fixed switching frequency sets the transformer design — plan the core and turns ratio for that frequency to avoid saturation at full load. ## Thermal budget — 150 °C junction limit The 800 V breakdown MOSFET provides good derating margin for universal AC input, but switching losses at 225 kHz add to the thermal budget.","metaTitle":"VIPER15HN STMicro VIPer™ plus Flyback Converter, 10 W, 800 V","metaDescription":"VIPER15HN offline flyback switching regulator from STMicro VIPer™ plus series. 10 W output, 800 V avalanche MOSFET, 225 kHz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPer™ plus","Package":"Tube","Topology":"Flyback","Duty Cycle":"-","Mounting Type":"Through Hole","Power (Watts)":"10 W","Package / Case":"8-DIP (0.300\\\", 7.62mm), 7 Leads","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Over Temperature, Over Voltage","Output Isolation":"Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"14 V","Base Product Number":"VIPER15","Voltage - Breakdown":"800V","Frequency - Switching":"225kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"7-DIP","Voltage - Supply (Vcc/Vdd)":"8.5V ~ 23.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dc2f05ea71906ee9d7493b4157cfdc4a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER15HN/alternatives.json"},"ai":{"faq":[{"question":"How does VIPER15HN compare to VIPER17HN?","answer":"Both are 800 V, 7-lead DIP flyback converters in the VIPer™ plus family. The VIPER15HN is rated for 10 W output; the VIPER17HN targets a higher power level. Protection sets and switching frequency may also differ. The VIPER17HN is a common cross-shop candidate, but confirm the exact specs against your load and transformer design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER15HN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER15HN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}