{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UC3845ADTRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UC3845ADTRG4","canonicalUrl":"https://icboms.com/texas-instruments/UC3845ADTRG4","factsUrl":"https://icboms.com/api/mcp/products/UC3845ADTRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UC3845ADTRG4 current-mode PWM controller, 7.6 V to 30 V supply, 48% max duty cycle, switching frequency up to 500 kHz, single transistor driver output, 14-SOIC package, Tape & Reel.","salesMarkdown":"The UC3845ADTRG4 is a current-mode PWM controller supporting boost, buck, flyback, and forward topologies. Its maximum duty cycle is 48%. ## Switching frequency up to 500 kHz The oscillator runs up to 500 kHz. The 14-SOIC package has a 3.90 mm width. ## Supply range and UVLO thresholds Vcc spans 7.6 V to 30 V. The 7.6 V undervoltage lockout rising threshold ensures stable startup. The product status is Active.","metaTitle":"UC3845ADTRG4 Current-Mode PWM Controller, 48% Duty Cycle","metaDescription":"UC3845ADTRG4 current-mode PWM controller from TI. Supports boost, buck, flyback, forward topologies. Switching frequency up to 500 kHz, 48% max duty cycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Frequency Control","Duty Cycle (Max)":"48%","Number of Outputs":"1","Serial Interfaces":"-","Base Product Number":"UC3845","Output Configuration":"Positive, Isolation Capable","Frequency - Switching":"Up to 500kHz","Operating Temperature":"0°C~70°C(TA)","Synchronous Rectifier":"No","Supplier Device Package":"14-SOIC","Voltage - Supply (Vcc/Vdd)":"7.6V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/167f8b16f2b0abe2748ff562a0463921.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/UC3845ADTRG4/alternatives.json"},"ai":{"faq":[{"question":"Does UC3845ADTRG4 support flyback topology?","answer":"Yes, flyback is among the listed topologies alongside boost, buck, and forward. The 48% duty cycle cap and current-mode architecture are well suited to flyback converters operating in continuous or discontinuous conduction mode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UC3845ADTRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UC3845ADTRG4 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}}