{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX14921ECS+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX14921ECS~3T","canonicalUrl":"https://icboms.com/analog-devices/MAX14921ECS~3T","factsUrl":"https://icboms.com/api/mcp/products/MAX14921ECS%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX14921ECS+T Battery Monitor, 1-16 Cells, SPI Interface, Fault Protection, -40°C to +85°C, 80-TQFP (12x12), Tape & Reel.","salesMarkdown":"## Battery-stack monitoring for 1-16 cells The MAX14921ECS+T is a multi-chemistry battery monitor that handles 1 to 16 series cells in a single IC — one part covers everything from a 1S handheld pack to a 16S e-bike or energy-storage stack. Communication runs over an SPI interface, which keeps the isolation barrier simple and the firmware readout loop deterministic — no I2C address conflicts when daisy-chaining multiple monitors on a high-voltage stack. ## Fault detection and temperature range Built-in fault protection covers over-temperature and over/under voltage conditions — the monitor flags a cell that drifts outside the safe window without waiting for the host MCU to poll each channel. ## 80-TQFP footprint and supply posture Housed in an 80-TQFP package measuring 12x12 mm — the 0.5 mm pitch QFP lands on a standard footprint with peripheral routing, no buried vias needed. CT is available for prototype or low-volume builds.","metaTitle":"MAX14921ECS+T Battery Monitor, 1-16 Cells, SPI, 80-TQFP","metaDescription":"Analog Devices MAX14921ECS+T active battery monitor for 1-16 multi-chemistry cells. SPI interface, fault protection, -40°C to +85°C. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Monitor","Interface":"SPI","Mounting Type":"Surface Mount","Package / Case":"80-TQFP","Number of Cells":"1 ~ 16","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over/Under Voltage","Battery Chemistry":"Multi-Chemistry","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"80-TQFP (12x12)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$15.73000","currency":"USD"},{"qty":10,"price":"$14.45700","currency":"USD"},{"qty":25,"price":"$13.85760","currency":"USD"},{"qty":100,"price":"$12.20980","currency":"USD"},{"qty":250,"price":"$11.61060","currency":"USD"},{"qty":500,"price":"$11.23604","currency":"USD"},{"qty":1000,"price":"$11.23605","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How can I order MAX14921ECS+T or check availability?","answer":"The part is sourced to order through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX14921ECS~3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX14921ECS~3T 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}}