{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UCC28710D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UCC28710D","canonicalUrl":"https://icboms.com/texas-instruments/UCC28710D","factsUrl":"https://icboms.com/api/mcp/products/UCC28710D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UCC28710D offline flyback controller, 7-SOIC package, isolated topology, 680 Hz to 100 kHz switching, 9-35 V supply, active lifecycle.","salesMarkdown":"## Flyback controller in a 7-lead SOIC The Texas Instruments UCC28710D is an offline flyback controller designed for isolated AC-DC and DC-DC converter stages. It operates from a 9 V to 35 V supply rail (Vcc/Vdd) and delivers a switching frequency that spans 680 Hz to 100 kHz, giving the transformer designer a wide window to optimize for size or efficiency. The tube delivery suits medium-volume production runs where tape-and-reel is not required. ## Isolated topology with integrated protection The UCC28710D implements a flyback topology with output isolation — the primary-side controller drives an external switch (no internal FET), so the power stage rating is set by the choice of MOSFET and transformer. This architecture is standard for off-line supplies in chargers, adapters, and auxiliary bias rails where galvanic isolation is required for safety. Fault protection includes current limiting and over-voltage detection on the primary side, which reduces the component count for the protection loop. The 21 V startup threshold ensures the controller begins switching once the bulk capacitor charges above that level, then operates down to the 9 V undervoltage lockout. ## Temperature grade and operating range The wide supply range (9-35 V) allows it to ride through line dips on a 24 V industrial bus or a 12 V automotive rail without dropping out. The part is RoHS3 compliant, which satisfies the current EU and China RoHS requirements without exemption claims.","metaTitle":"UCC28710D Texas Instruments Flyback Controller, 7-SOIC","metaDescription":"Texas Instruments UCC28710D offline flyback controller in 7-SOIC. Active lifecycle, RoHS3 compliant. Isolated topology with current limiting and OVP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Topology":"Flyback","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width), 7 Leads","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting, Over Voltage","Output Isolation":"Isolated","Internal Switch(s)":"No","Voltage - Start Up":"21 V","Frequency - Switching":"680Hz ~ 100kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"7-SOIC","Voltage - Supply (Vcc/Vdd)":"9V ~ 35V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.74","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.74000","currency":"USD"},{"qty":10,"price":"$1.56200","currency":"USD"},{"qty":25,"price":"$1.47360","currency":"USD"},{"qty":100,"price":"$1.25530","currency":"USD"},{"qty":250,"price":"$1.17872","currency":"USD"},{"qty":500,"price":"$1.03138","currency":"USD"},{"qty":1000,"price":"$0.85457","currency":"USD"},{"qty":2500,"price":"$0.83400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a04d2ebef6ed518ca18dac6de7a64297.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to UCC28710D?","answer":"The UCC3809P-2 is a peer controller with a similar flyback/forward topology and isolated output, but it operates at a 1 MHz maximum switching frequency versus the UCC28710D's 100 kHz ceiling. The UCC3809P-2 also includes soft-start and frequency control features not present on the UCC28710D, and its temperature range extends to 150°C. A direct drop-in replacement without board changes is not guaranteed — the pinout and compensation differ."},{"question":"What compliance documentation does Texas Instruments provide for UCC28710D?","answer":"Texas Instruments provides RoHS3 compliance certification for the UCC28710D. The standard documentation package includes the datasheet, RoHS declaration, and material composition data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UCC28710D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UCC28710D 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}}