{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ29412DCTR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ29412DCTR","canonicalUrl":"https://icboms.com/texas-instruments/BQ29412DCTR","factsUrl":"https://icboms.com/api/mcp/products/BQ29412DCTR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ29412DCTR, Battery Protection IC, Li-Ion, 2-4 Cells, Over Voltage Protection, Surface Mount, 8-LSSOP/8-MSOP (0.110\", 2.80mm Width), SM8, -40°C to 110°C, Active, ROHS3 Compliant.","salesMarkdown":"## Over-voltage protection — what it covers and what it doesn't The BQ29412DCTR is a single-function protector: it monitors each cell in a 2-4 series stack and asserts a fault signal if any cell voltage exceeds the factory-set over-voltage threshold. There is no programmable threshold, no current-sense input, and no temperature monitoring. That means the BOM needs a separate charge/discharge FET controller and thermistor circuit for full pack protection. The advantage is simplicity — a fixed-threshold watchdog that does not need firmware or configuration, useful for cost-sensitive or space-constrained designs where a full fuel-gauge/protector IC would be overkill. ## Temperature range and environment Rated from -40°C to 110°C, the BQ29412DCTR covers the industrial temperature band and extends into the lower end of automotive cabin applications. It is not AEC-Q100 qualified (the BQ79612PAPRQ1 is the automotive-grade functional-safety sibling), so for under-hood or mission-critical automotive use, that peer is the correct choice. For consumer, portable, and industrial packs, this temperature grade is sufficient and the part is actively available. ## Active lifecycle — no LTB pressure The BQ29412DCTR is listed as Active and ROHS3 compliant. For a BOM freeze or a new design, this part carries no lifecycle risk.","metaTitle":"TI BQ29412DCTR Battery Protection IC, 2-4 Cell Li-Ion, SM8","metaDescription":"Texas Instruments BQ29412DCTR Li-Ion battery protection IC for 2-4 cells, over-voltage fault protection, -40°C to 110°C, SM8 package. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Protection","Mounting Type":"Surface Mount","Package / Case":"8-LSSOP, 8-MSOP (0.110\\\", 2.80mm Width)","Number of Cells":"2 ~ 4","lifecycle_stage":"eol_hot","Fault Protection":"Over Voltage","Battery Chemistry":"Lithium Ion","Operating Temperature":"-40°C ~ 110°C (TA)","Supplier Device Package":"SM8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.84","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.84000","currency":"USD"},{"qty":10,"price":"$2.54800","currency":"USD"},{"qty":25,"price":"$2.40360","currency":"USD"},{"qty":100,"price":"$2.04780","currency":"USD"},{"qty":250,"price":"$1.92284","currency":"USD"},{"qty":500,"price":"$1.68248","currency":"USD"},{"qty":1000,"price":"$1.39406","currency":"USD"},{"qty":3000,"price":"$1.36050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/96073a6de0d67c039c189c59672bf30d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BQ29412DCTR compatible with 3-cell Li-Ion packs?","answer":"Yes, a 3-series cell stack falls within the 2-4 cell range. The BQ29412DCTR monitors each cell independently and triggers over-voltage protection on any cell that exceeds the threshold, regardless of the total stack count."},{"question":"What is the closest functional second-source to BQ29412DCTR?","answer":"The BQ79612PAPRQ1 is an automotive-grade functional-safety battery monitor with SPI/UART interface, over-temperature protection, and AEC-Q100 qualification, but it is a different device class (monitor vs. protector) and supports only 1 cell. For a direct drop-in replacement, TI lists no official second-source for the BQ29412DCTR; the BQ29410DCTR and BQ29412DCTRG4 are variants within the same family but their thresholds and pinouts should be verified against the datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ29412DCTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ29412DCTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-13T22:17:49.090Z","lastPublished":"2026-07-13T22:17:49.090Z","indexable":true}}