{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX6651EEE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX6651EEE","canonicalUrl":"https://icboms.com/analog-devices/MAX6651EEE","factsUrl":"https://icboms.com/api/mcp/products/MAX6651EEE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX6651EEE+, IC MOTOR DRIVER 3V-5.5V 16QSOP, Controller - Speed, I²C interface, Fan Controller application, Surface Mount, 16-SSOP/QSOP package, -40°C to +85°C, Tube.","salesMarkdown":"## I²C control — what it buys you in the field The I²C interface lets the system microcontroller set the fan speed, read tachometer feedback, and detect fault conditions (like a stalled or open fan) over just two wires. That means no extra PWM timer or GPIO pins are tied up — the fan control is a register write away. For a field-service scenario, if a fan fails, the host can flag it via the same bus without adding discrete fault lines. The pre-driver is low-side, so the external N-channel MOSFET handles the switching; the controller itself stays cool. ## Lifecycle and sourcing The MAX6651EEE+ is listed as Active and ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect. Sourcing is through independent distribution; pricing and availability are confirmed at quote time against an RFQ.","metaTitle":"MAX6651EEE+ Fan Speed Controller, I²C, 3V-5.5V, 16-QSOP","metaDescription":"MAX6651EEE+ is an active I²C fan speed controller for brushless DC fans. Supply 3V-5.5V, -40°C to +85°C, 16-QSOP. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Controller - Speed","Interface":"I²C","Applications":"Fan Controller","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (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":"16-QSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.45000","currency":"USD"},{"qty":10,"price":"$6.73200","currency":"USD"},{"qty":25,"price":"$6.41840","currency":"USD"},{"qty":100,"price":"$5.57320","currency":"USD"},{"qty":250,"price":"$5.32272","currency":"USD"},{"qty":500,"price":"$4.85304","currency":"USD"},{"qty":1000,"price":"$4.22685","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/971a3f440fa707bd97211f0bed54ac63.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX6651EEE+?","answer":"The MAX6651EEE+ is an I²C-controlled fan speed controller for brushless DC fans, operating from a 3V to 5.5V supply and rated for -40°C to +85°C. It drives an external low-side N-channel MOSFET to regulate fan speed based on temperature or direct register commands."},{"question":"How does the MAX6651EEE+ compare to the MAX6650?","answer":"The MAX6650 is a similar I²C fan speed controller but typically offered in a different package variant (e.g., 16-SOIC). The MAX6651EEE+ comes in the smaller 16-QSOP/SSOP footprint. Both share the same 3V to 5.5V supply range, I²C interface, and low-side pre-driver output. The choice is mainly board-space and availability driven."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX6651EEE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX6651EEE 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}}