{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX31790ATI+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX31790ATI","canonicalUrl":"https://icboms.com/analog-devices/MAX31790ATI","factsUrl":"https://icboms.com/api/mcp/products/MAX31790ATI%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX31790ATI+ BLDC fan motor driver, fully integrated control and power stage, 3V-5.5V supply, 6 low-side outputs, I²C interface, 28-TQFN 4x4 mm, tube pack.","salesMarkdown":"## Six low-side outputs drive a BLDC fan directly The MAX31790ATI+: The driver integrates both control logic and power MOSFETs in a single 28-TQFN package. The six low-side outputs handle the six-step commutation for a brushless DC fan motor — no external FETs or Hall-effect commutation logic needed on the board. Communication with the host controller runs over an I²C bus — speed setpoint, tachometer readback, and fault flags all travel on the same two wires. Supply voltage spans 3V to 5.5V, so it works on a common 3.3V or 5V fan-tray rail. ## 28-TQFN with exposed pad — board layout matters The 28-WFQFN package with exposed pad measures 4x4 mm. Shipped in a tube — not reel or tray. If the tube has been sitting in a humid environment, a bake before reflow is worth the time, same as any moisture-sensitive QFN.","metaTitle":"MAX31790ATI+ BLDC Fan Motor Driver, 3V-5.5V, 28-TQFN","metaDescription":"Active-production MAX31790ATI+ from Analog Devices. Fully integrated BLDC fan motor driver with I²C, 6 low-side outputs, 3V-5.5V supply, -40°C to +125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tube","Function":"Driver - Fully Integrated, Control and Power Stage","Interface":"I²C","Technology":"Power MOSFET","Applications":"Fan Motor Driver","Mounting Type":"Surface Mount","Package / Case":"28-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Motor Type - AC, DC":"Brushless DC (BLDC)","Output Configuration":"Low Side (6)","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"28-TQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.95","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.95000","currency":"USD"},{"qty":10,"price":"$6.27600","currency":"USD"},{"qty":25,"price":"$5.98400","currency":"USD"},{"qty":100,"price":"$5.19580","currency":"USD"},{"qty":250,"price":"$4.96224","currency":"USD"},{"qty":500,"price":"$4.52440","currency":"USD"},{"qty":1000,"price":"$3.94061","currency":"USD"},{"qty":2500,"price":"$3.79466","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/98137b81da7e6c706b000116f032f43c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the MAX31790ATI+ come in?","answer":"It ships in a 28-TQFN 4x4 mm package with an exposed pad. The package option is a tube, not tape-and-reel."},{"question":"What is the MAX31790ATI+ used for?","answer":"It is a fully integrated BLDC fan motor driver with six low-side outputs and an I²C interface. Typical use is driving server, telecom, or HVAC fans where the host controller sets speed over a 2-wire bus and reads back tachometer data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX31790ATI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX31790ATI when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}