{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UC3854ADW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UC3854ADW","canonicalUrl":"https://icboms.com/texas-instruments/UC3854ADW","factsUrl":"https://icboms.com/api/mcp/products/UC3854ADW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UC3854ADW, Power Factor Correction (PFC) controller, Average Current mode, 200 kHz switching frequency, 10V to 20V supply, 16-SOIC (0.295\", 7.50mm Width), Surface Mount, 0°C to 70°C operating temperature.","salesMarkdown":"## PFC controller for offline supplies The Texas Instruments UC3854ADW is a power factor correction (PFC) controller operating in average current mode, switching at 200 kHz. It is designed to shape the input current waveform of an offline AC-DC supply to follow the line voltage, keeping total harmonic distortion low and power factor near unity. The 10V to 20V supply range lets it run off a standard auxiliary winding or a downstream regulator without a separate bias supply. Rated for 0°C to 70°C commercial environments, this part fits controlled indoor power supplies, server PSUs, and telecom rectifiers where ambient temperature stays within that band. ## 200 kHz switching — inductor sizing and EMI Switching at 200 kHz. ## Average current mode — what it means for the loop Average current mode control senses the average inductor current over each switching cycle. ## Package and mounting The UC3854ADW comes in a 16-SOIC wide-body package (7.50 mm body width) for surface-mount assembly. ## Lifecycle and compliance The UC3854ADW is listed as Active with no end-of-life notification. It is ROHS3 compliant, so it meets the current EU restriction on hazardous substances without an exemption. No second source or direct replacement is recorded in the manufacturer's cross-reference; the part is sole-sourced from Texas Instruments. For production builds, qualifying the BOM around a single source is standard practice for this generation of PFC controllers — no pin-compatible alternate exists from another vendor.","metaTitle":"UC3854ADW PFC Controller, Average Current Mode, 200kHz","metaDescription":"UC3854ADW PFC controller from TI, average current mode, 200kHz switching, 10V-20V supply, 16-SOIC. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mode":"Average Current","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"10V ~ 20V","Current - Startup":"250 µA","Frequency - Switching":"200kHz","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"16-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.1","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.10000","currency":"USD"},{"qty":10,"price":"$4.58100","currency":"USD"},{"qty":25,"price":"$4.33120","currency":"USD"},{"qty":100,"price":"$3.75370","currency":"USD"},{"qty":250,"price":"$3.56116","currency":"USD"},{"qty":500,"price":"$3.19544","currency":"USD"},{"qty":1000,"price":"$2.72400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bfae44c5fc47b2bfe8e74dd7e99dc75b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the UC3854ADW switching frequency?","answer":"The switching frequency is 200 kHz, which is the internal oscillator frequency. This sets the boost inductor size and the EMI filter design point."},{"question":"What are alternatives to UC3854ADW?","answer":"No pin-compatible second source from another manufacturer is recorded in the manufacturer's cross-reference. Within the same family, the UC3854N (DIP-16) and UC3854DW (narrow-body SOIC-16) share the same control core but differ in package. For a drop-in replacement, stick with the UC3854ADW order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UC3854ADW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UC3854ADW 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}}