{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UC3845ADWTR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UC3845ADWTR","canonicalUrl":"https://icboms.com/texas-instruments/UC3845ADWTR","factsUrl":"https://icboms.com/api/mcp/products/UC3845ADWTR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UC3845ADWTR current-mode PWM controller, 48% max duty cycle, switching up to 500 kHz, 7.6 V to 30 V supply, transistor driver output, 16-SOIC package, 0°C to 70°C.","salesMarkdown":"The UC3845ADWTR: The controller supports boost, buck, and step-up/step-down configurations, and its transistor-driver output drives an external MOSFET through a gate-drive resistor — no integrated power stage. ## Switching frequency and supply rails The oscillator runs up to 500 kHz. The supply range is 7.6 V to 30 V. Texas Instruments has discontinued this specific tape-and-reel variant.","metaTitle":"UC3845ADWTR PWM Controller, 48% Duty Cycle, 500 kHz, 16-SOIC","metaDescription":"UC3845ADWTR current-mode PWM controller. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Function":"Step-Up, Step-Down, Step-Up/Step-Down","Topology":"Boost, Buck, Flyback, Forward","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Control Features":"Frequency Control","Duty Cycle (Max)":"48%","Number of Outputs":"1","Serial Interfaces":"-","Base Product Number":"UC384","Output Configuration":"Positive, Isolation Capable","Frequency - Switching":"Up to 500kHz","Operating Temperature":"0°C~70°C(TA)","Synchronous Rectifier":"No","Supplier Device Package":"16-SOIC","Voltage - Supply (Vcc/Vdd)":"7.6V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ec0c47fb2b38012b7f304dde70743f4d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/UC3845ADWTR/alternatives.json"},"ai":{"faq":[{"question":"Can UC3845ADWTR be used in a boost or flyback converter?","answer":"Yes. The UC3845ADWTR supports boost, buck, flyback, and forward topologies. The 48% maximum duty cycle is well-suited for flyback and forward converters where the transformer reset limits the on-time. For boost converters, the duty cycle ceiling may limit the step-up ratio — check the required duty cycle against the 48% max before committing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UC3845ADWTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UC3845ADWTR 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}}