{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER16HD","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER16HD","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER16HD","factsUrl":"https://icboms.com/api/mcp/products/VIPER16HD","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPer™ plus offline switching regulator, VIPER16HD, 800V breakdown, 10 W, 115 kHz, flyback/buck/buck-boost, SO-16, active.","salesMarkdown":"## 800V avalanche-rated MOSFET — offline without a clamp The VIPER16HD integrates an 800 V avalanche-rugged power MOSFET and a 115 kHz PWM controller in a single 16-SOIC package. That breakdown voltage lets it sit directly on rectified 230 VAC mains in a flyback or buck topology without needing an external clamping circuit — a straight BOM simplification for auxiliary supplies up to 10 W. ## 10 W continuous — where the thermal budget lands The 10 W power rating is the continuous output ceiling in flyback configuration at 115 kHz. The 150°C junction rating means this part can deliver that 10 W inside a sealed industrial enclosure or an outdoor telecom box without forced air — the copper area on the SO-16 footprint is the derating lever. At lower ambient or with a heatsink pad, you can push toward the peak capability, but for a BOM commit, 10 W is the safe continuous number. ## Topology flexibility — flyback, buck, buck-boost The controller supports flyback, buck, and buck-boost topologies, with output isolation selectable as either. The 70 % duty cycle and 11.5 V to 23.5 V Vcc range cover the common auxiliary-rail voltages. Fault protection includes current limiting and over-temperature shutdown, and the 13 V start-up threshold ensures clean power-on from the bulk cap. STMicroelectronics lists the VIPER16HD as active.","metaTitle":"STMicroelectronics VIPER16HD offline switching regulator","metaDescription":"VIPER16HD from STMicroelectronics VIPer™ plus series: 800V avalanche-rugged MOSFET, 10 W flyback/buck, 115 kHz, SO-16.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPer™ plus","Package":"Tube","Topology":"Buck, Buck-Boost, Flyback","Duty Cycle":"70%","Mounting Type":"Surface Mount","Power (Watts)":"10 W","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Over Temperature","Output Isolation":"Either","Internal Switch(s)":"Yes","Voltage - Start Up":"13 V","Base Product Number":"VIPER16","Voltage - Breakdown":"800V","Frequency - Switching":"115kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"16-SO","Voltage - Supply (Vcc/Vdd)":"11.5V ~ 23.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9188c2a3562c843e3a4dbaba9cccea64.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER16HD/alternatives.json"},"ai":{"faq":[{"question":"What is the typical power range for VIPER16HD in flyback?","answer":"The rated continuous output power in flyback topology is 10 W. This assumes adequate copper area on the SO-16 footprint and ambient within the 150°C junction limit. For lower input voltages or reduced ambient, the practical ceiling may be higher, but 10 W is the safe design-in number."},{"question":"Is VIPER16HD suitable for flyback topology?","answer":"Yes, flyback is one of the three supported topologies, along with buck and buck-boost. The 800 V breakdown MOSFET handles the reflected voltage spike typical in flyback converters without an external snubber in many designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER16HD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER16HD 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}}