{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TC646BEOA","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"TC646BEOA","canonicalUrl":"https://icboms.com/microchip/TC646BEOA","factsUrl":"https://icboms.com/api/mcp/products/TC646BEOA","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology FanSense™ BLDC Fan Controller, TC646BEOA, 3V-5.5V supply, 8-SOIC (0.154\", 3.90mm Width), Tube, -40°C to 85°C.","salesMarkdown":"## Device identity and supply rail The TC646BEOA: The output is a pre-driver configured for low-side drive, meaning it requires external N-channel MOSFETs to switch the motor windings — the part itself does not carry the full motor current. ## Temperature grade and operating range The parallel interface means the speed-control input is a simple logic-level PWM or DC voltage — no I2C or SPI bus required, which simplifies firmware for basic thermal-management loops.","metaTitle":"Microchip TC646BEOA Fan Controller, 3V-5.5V, 8-SOIC","metaDescription":"Microchip TC646BEOA FanSense™ BLDC motor controller, 3V-5.5V supply, -40°C to 85°C, 8-SOIC. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"FanSense™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"FanSense™","Package":"Tube","Function":"Controller - Speed","Interface":"Parallel","Applications":"Fan Controller","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Motor Type - AC, DC":"Brushless DC (BLDC)","Output Configuration":"Pre-Driver - Low Side","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.71","priceTiers":[{"qty":1,"price":"$1.71000","currency":"USD"},{"qty":25,"price":"$1.54480","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a920cff692517f4bb6cd6121a58c06d9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TC646BEOA/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/TC646BEOA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/TC646BEOA 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}}