{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ2040SN-D111TR-TI","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ2040SN-D111TR-TI","canonicalUrl":"https://icboms.com/texas-instruments/BQ2040SN-D111TR-TI","factsUrl":"https://icboms.com/api/mcp/products/BQ2040SN-D111TR-TI","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ2040SN-D111TR-TI Battery Monitor, Multi-Chemistry, SMBus Interface, 3-Cell, 16-SOIC (0.154\", 3.90mm Width), Surface Mount, Bulk.","salesMarkdown":"## Multi-chemistry SMBus monitor for 3-cell packs The BQ2040SN-D111TR-TI is a multi-chemistry battery monitor from Texas Instruments that communicates over the SMBus interface, designed to track charge state and health in 3-cell battery packs. It integrates fault protection for over-current, over-temperature, and over/under-voltage conditions — the monitor itself can flag a pack fault without relying solely on a separate protector IC. Packaged in a 16-SOIC (3.90 mm body width) with surface-mount termination, the footprint matches the industry-standard SOIC-16 land pattern for a straightforward PCB layout.","metaTitle":"BQ2040SN-D111TR-TI Battery Monitor, SMBus, 3-Cell, 16-SOIC","metaDescription":"Texas Instruments BQ2040SN-D111TR-TI multi-chemistry battery monitor with SMBus interface, 3-cell support, fault protection. Active, RoHS3. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Function":"Battery Monitor","Interface":"SMBus","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Number of Cells":"3","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over/Under Voltage","Battery Chemistry":"Multi-Chemistry","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"16-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.23","priceTiers":[{"qty":23,"price":"$13.23000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ2040SN-D111TR-TI/alternatives.json"},"ai":{"faq":[{"question":"What is the BQ2040SN-D111TR-TI used for?","answer":"It is a multi-chemistry battery monitor that tracks charge parameters for 3-cell packs and reports over the SMBus. It also provides fault detection for over-current, over-temperature, and over/under-voltage conditions."},{"question":"Is the BQ2040SN-D111TR-TI a direct replacement for the BQ296217DSGT?","answer":"No — the BQ296217DSGT is a lithium-ion battery protection IC (over-voltage only) in a different package and temperature range. The BQ2040SN-D111TR-TI is a monitor with SMBus communication and broader fault coverage; they serve different roles in the battery management system."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ2040SN-D111TR-TI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ2040SN-D111TR-TI 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}}