{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UC3875DWPTR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UC3875DWPTR","canonicalUrl":"https://icboms.com/texas-instruments/UC3875DWPTR","factsUrl":"https://icboms.com/api/mcp/products/UC3875DWPTR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UC3875DWPTR full-bridge PWM controller, 1MHz switching, 100% duty cycle, 9.5V-20V supply, 28-SOIC (7.50mm width), surface mount, 0°C to 70°C.","salesMarkdown":"## 1MHz switching — what it means for the transformer The 1MHz maximum switching frequency is the headline parameter for this controller. ## Full-bridge topology with 100% duty cycle This controller implements full-bridge topology, which is the standard choice for higher-power isolated converters (typically 500W to several kW) where the primary-side switches see only half the input voltage compared to a half-bridge. The 100% duty cycle capability means the controller can drive the primary switches to full on-time, maximizing power throughput. Combined with current-mode control (implied by the current-limiting fault protection), it offers good line transient rejection and inherent cycle-by-cycle current limiting. ## Lifecycle and sourcing reality The UC3875DWPTR is listed as Active in production status. It is ROHS3 compliant. For BOM planning, this means no immediate obsolescence risk — the part is qualified for new designs and ongoing production.","metaTitle":"UC3875DWPTR Full-Bridge PWM Controller, 1MHz, 28-SOIC","metaDescription":"UC3875DWPTR is an active full-bridge PWM controller from TI. 1MHz switching, 9.5V-20V supply, 28-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Full-Bridge","Duty Cycle":"100%","Mounting Type":"Surface Mount","Package / Case":"28-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Control Features":"Frequency Control, Soft Start, Sync","Fault Protection":"Current Limiting","Output Isolation":"Non-Isolated","Voltage - Start Up":"10.75 V","Frequency - Switching":"1MHz","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-SOIC","Voltage - Supply (Vcc/Vdd)":"9.5V ~ 20V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.37","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.37000","currency":"USD"},{"qty":10,"price":"$10.44600","currency":"USD"},{"qty":25,"price":"$10.01280","currency":"USD"},{"qty":100,"price":"$8.82210","currency":"USD"},{"qty":250,"price":"$8.38916","currency":"USD"},{"qty":500,"price":"$7.84792","currency":"USD"},{"qty":1000,"price":"$7.65900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2057f22fb1b74ebb177a4369e4f41d68.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the UC3875DWPTR obsolete or active?","answer":"The UC3875DWPTR is Active in production status, per the manufacturer's latest lifecycle record. There is no last-time-buy or end-of-life notice on file. It is ROHS3 compliant and suitable for new designs."},{"question":"What is the UC3875DWPTR used for?","answer":"The UC3875DWPTR is a full-bridge PWM controller used in isolated DC-DC converters and offline power supplies. Typical applications include telecom brick converters, server power supplies, industrial power systems, and any design requiring galvanic isolation at power levels from a few hundred watts to several kilowatts."},{"question":"What are the alternatives for UC3875DWPTR?","answer":"Pin-compatible alternatives within the same TI family include the UC3875DWPTRG4 (same die, different packaging suffix). For a different feature set, consider the UC3879 or UCC3895 series, which offer enhanced control features like adaptive delay and bidirectional synchronization. Verify pin compatibility and electrical specifications before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UC3875DWPTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UC3875DWPTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}