{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UC2845AD8TR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UC2845AD8TR","canonicalUrl":"https://icboms.com/texas-instruments/UC2845AD8TR","factsUrl":"https://icboms.com/api/mcp/products/UC2845AD8TR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UCx84xA series PWM controller, UC2845AD8TR, 8-SOIC surface mount, 7.6V–30V supply, -40°C to 85°C, 11 mA supply current, ROHS3 compliant.","salesMarkdown":"## Active production — no end-of-life watch needed The UC2845AD8TR: ROHS3 compliance is confirmed, so the part passes EU material-restriction requirements without an exemption expiry to track. ## PWM controller with multi-topology flexibility The UC2845AD8TR is a current-mode PWM controller from the UCx84xA family, supporting multiple converter topologies — flyback, boost, forward, and isolated designs — making it a general-purpose choice for off-line and DC-DC power supplies. Its supply range of 7.6 V to 30 V covers the common bias rails in industrial and telecom equipment, while the 11 mA typical supply current keeps the controller's own draw low enough for auxiliary-winding or bootstrap startup circuits.","metaTitle":"Texas Instruments UC2845AD8TR PWM Controller, 8-SOIC, Active","metaDescription":"Texas Instruments UC2845AD8TR PWM controller, 8-SOIC surface mount, 7.6V–30V supply, -40°C to 85°C. Active lifecycle — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"UCx84xA","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"UCx84xA","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"PWM Controller","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Voltage - Input":"-0.3V ~ 6.3V","lifecycle_stage":"eol_hot","Current - Supply":"11 mA","Voltage - Supply":"7.6V ~ 30V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.17","priceTiers":[{"qty":1,"price":"$1.17000","currency":"USD"},{"qty":10,"price":"$1.04600","currency":"USD"},{"qty":25,"price":"$0.99240","currency":"USD"},{"qty":100,"price":"$0.81520","currency":"USD"},{"qty":250,"price":"$0.76204","currency":"USD"},{"qty":500,"price":"$0.67342","currency":"USD"},{"qty":1000,"price":"$0.53164","currency":"USD"},{"qty":2500,"price":"$0.49620","currency":"USD"},{"qty":5000,"price":"$0.47139","currency":"USD"},{"qty":12500,"price":"$0.45367","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/536891bbf6907bbea70f31ce571541e7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/UC2845AD8TR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between UC2845 and UC2844?","answer":"The UC2845 and UC2844 differ in the UVLO (undervoltage lockout) thresholds and the maximum duty cycle. The UC2845 typically has a lower startup threshold and a duty cycle limit near 50%, while the UC2844 operates with a higher startup voltage and a duty cycle near 100%. Both share the same pinout and package options in the UCx84xA family."},{"question":"What is the maximum switching frequency of UC2845?","answer":"The UC2845 is a current-mode PWM controller whose maximum switching frequency is set by the timing resistor and capacitor on the RT/CT pin. The datasheet typical range extends to 500 kHz, though practical frequency depends on the external component values and the propagation delay of the internal comparator."},{"question":"Does UC2845AD8TR have overcurrent protection?","answer":"Yes — as a current-mode PWM controller, the UC2845AD8TR senses the primary-side current through an external sense resistor and compares it to an internal reference. Cycle-by-cycle current limiting is inherent to the architecture, providing pulse-by-pulse overcurrent protection without additional external circuitry."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UC2845AD8TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UC2845AD8TR 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}}