{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UCC28C41DGK","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UCC28C41DGK","canonicalUrl":"https://icboms.com/texas-instruments/UCC28C41DGK","factsUrl":"https://icboms.com/api/mcp/products/UCC28C41DGK","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UCC28C41DGK current-mode PWM controller, boost/flyback/forward topology, 1 MHz switching, 48% duty cycle, 8-VSSOP package, tube.","salesMarkdown":"## Multi-topology current-mode PWM controller for isolated and non-isolated supplies The UCC28C41DGK from Texas Instruments is a current-mode PWM controller that supports boost, flyback, and forward converter topologies — a single part number covers the three most common architectures in off-line and DC-DC supplies up to 1 MHz switching frequency. With a supply range of 6.6 V to 18 V and a maximum duty cycle of 48%, it targets single-ended topologies where the output is regulated from the primary side and the transformer reset happens during the off-time. ## Switching frequency and duty-cycle limits govern transformer design The 1 MHz switching ceiling lets you shrink the magnetics — a flyback transformer at 500 kHz is roughly half the core cross-section of one running at 100 kHz — but the 48% max duty means the off-time is always longer than the on-time, which sets the turns ratio and reset voltage in a forward converter. The single transistor-driver output with positive configuration drives an external N-channel MOSFET directly; there's no synchronous rectifier output, so the secondary-side rectification is handled by a Schottky or ultrafast diode. ## Active lifecycle and compliance documentation RoHS3 compliant per the current TI declaration; no exemptions that would flag it for restricted markets.","metaTitle":"Texas Instruments UCC28C41DGK PWM Controller, 1MHz, 8-VSSOP","metaDescription":"Active PWM controller, up to 1MHz switching, boost/flyback/forward topologies, 48% max duty, 6.6-18V supply, -40 to 105C. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Flyback, Forward Converter","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Control Features":"Frequency Control","Duty Cycle (Max)":"48%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"Up to 1MHz","Operating Temperature":"-40°C ~ 105°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"8-VSSOP","Voltage - Supply (Vcc/Vdd)":"6.6V ~ 18V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.01","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.01000","currency":"USD"},{"qty":10,"price":"$1.80600","currency":"USD"},{"qty":25,"price":"$1.70400","currency":"USD"},{"qty":100,"price":"$1.45180","currency":"USD"},{"qty":250,"price":"$1.36316","currency":"USD"},{"qty":500,"price":"$1.19276","currency":"USD"},{"qty":1000,"price":"$0.98829","currency":"USD"},{"qty":2500,"price":"$0.96450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/68aa4bed3ae24ec1948408b17692c78a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for UCC28C41DGK?","answer":"The part is RoHS3 compliant per the manufacturer's declaration. No UL or IEC certification is listed in the standard product documentation — for specific compliance certificates, the buyer should request them at RFQ time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UCC28C41DGK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UCC28C41DGK when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}