{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER115XSTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER115XSTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER115XSTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER115XSTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER™ series VIPER115XSTR, off-line high-voltage converter, 800V breakdown, 12W output, 30kHz switching, 80% duty cycle, 10-SOP package, -40°C to 125°C operating temperature.","salesMarkdown":"## 800 V avalanche-rugged MOSFET with integrated controller The STMicroelectronics VIPER115XSTR is an off-line high-voltage converter from the VIPER™ family that integrates an 800 V avalanche-rugged power MOSFET with a PWM controller in a single 10-SOP package. It targets non-isolated buck, buck-boost, and flyback topologies up to 12 W output. Rated 12 W continuous, this part covers auxiliary supplies for appliance control boards, smart meters, and industrial sensor nodes. The 30 kHz fixed switching frequency keeps the transformer and output filter small while staying below the AM radio band. The 80% maximum duty cycle supports wide input-voltage ranges typical of universal AC inputs. ## Protection set reduces external component count Built-in fault protection includes current limiting, overload, overvoltage, and short-circuit — no external sense resistor or OVP comparator needed. Soft-start on the control side limits inrush during start-up. The start-up voltage threshold is 16 V, with the supply range from 4.5 V to 30 V after the auxiliary winding takes over.","metaTitle":"STMicroelectronics VIPER115XSTR VIPER™ 800V 12W Off-Line","metaDescription":"VIPER115XSTR off-line high-voltage converter: 800V breakdown, 12W output, 30kHz switching.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPER™","Package":"Tape & Reel (TR) Cut Tape (CT)","Topology":"Buck, Buck-Boost, Flyback","Duty Cycle":"80%","Mounting Type":"Surface Mount","Power (Watts)":"12 W","Package / Case":"10-SOP (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"Soft Start","Fault Protection":"Current Limiting, Over Load, Over Voltage, Short Circuit","Output Isolation":"Non-Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"16 V","Base Product Number":"VIPER115","Voltage - Breakdown":"800V","Frequency - Switching":"30kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"10-SSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/581b715f318faca79ea625c67bb64fdf.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER115XSTR/alternatives.json"},"ai":{"faq":[{"question":"What protection features does VIPER115XSTR have?","answer":"It includes current limiting, overload, overvoltage, and short-circuit protection, plus soft-start. These reduce the need for external monitoring components."},{"question":"What is the maximum output power of VIPER115XSTR?","answer":"Rated 12 W continuous in non-isolated flyback, buck, or buck-boost topologies."},{"question":"Is VIPER115XSTR isolated or non-isolated?","answer":"It is a non-isolated converter. For isolated designs, a separate transformer and optocoupler feedback loop would be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER115XSTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER115XSTR 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}}