{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER15LDTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER15LDTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER15LDTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER15LDTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPer™ plus VIPER15LDTR offline flyback converter, 800V breakdown, 10W output, 136kHz switching frequency, internal power MOSFET, SO-16 package.","salesMarkdown":"## 800 V breakdown, 10 W flyback — the offline power stage The STMicroelectronics VIPER15LDTR is a monolithic offline flyback converter from the VIPer™ plus series, integrating the PWM controller and an 800 V avalanche-rugged power MOSFET in a single SO-16 package. It delivers up to 10 W in isolated flyback topologies, switching at 136 kHz — a frequency that balances transformer size against switching losses for auxiliary and bias supplies in appliances, industrial power supplies, and AC-DC adapters. ## Parametric profile for the flyback design The 800 V breakdown voltage provides adequate derating margin for universal-input (85–265 VAC) offline flyback designs, including those with reflected voltage spikes from the transformer leakage inductance. The 10 W output power ceiling is a practical limit for auxiliary supplies in motor drives, home appliances, and industrial control boards. The 136 kHz switching frequency allows a smaller transformer core than a 60 kHz design, though the higher frequency demands careful layout to manage EMI and gate-drive losses. Integrated protection includes current limiting, over-temperature shutdown, and over-voltage protection — all on-chip, reducing external component count. The start-up voltage is 14 V, and the Vcc operating range is 8.5 V to 23.5 V, accommodating the auxiliary winding voltage variation across load and line.","metaTitle":"VIPER15LDTR STMicroelectronics Flyback Converter, 800V, 10W","metaDescription":"STMicroelectronics VIPER15LDTR offline flyback switcher: 800V breakdown, 10W output, 136kHz switching, SO-16 package.","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":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Flyback","Duty Cycle":"-","Mounting Type":"Surface Mount","Power (Watts)":"10 W","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","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":"136kHz","Operating Temperature":"-40°C~150°C(TJ)","Supplier Device Package":"16-SO","Voltage - Supply (Vcc/Vdd)":"8.5V ~ 23.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.0560","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dc2f05ea71906ee9d7493b4157cfdc4a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER15LDTR/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for VIPER15LDTR?","answer":"No official successor is listed for the VIPER15LDTR. STMicroelectronics offers newer VIPer™ plus family members with similar pinouts and higher integration, but a direct drop-in replacement is not confirmed. Review the VIPerPlus family selection guide for a candidate that matches your power level, switching frequency, and package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER15LDTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER15LDTR 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}}