{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ79612PAPRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ79612PAPRQ1","canonicalUrl":"https://icboms.com/texas-instruments/BQ79612PAPRQ1","factsUrl":"https://icboms.com/api/mcp/products/BQ79612PAPRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ79612PAPRQ1, Automotive Grade, Functional Safety (FuSa) series, Battery Monitor, SPI, UART interface, 1-cell Li-Ion, Over-Temperature protection, -40°C to 125°C, 64-PowerTQFP, AEC-Q100 qualified.","salesMarkdown":"## AEC-Q100 and the automotive temperature envelope The AEC-Q100 qualification is the gate for any tier-1 automotive BOM. It means the device has passed the stress tests for high-temperature operating life, temperature cycling, and ESD robustness that commercial-grade parts skip. The -40°C to 125°C operating range covers cold-crank and hot-soak conditions; the 125°C upper limit is the standard for under-hood electronics, not just cabin infotainment. For a battery monitor that sits near the pack, that temperature margin matters during charge/discharge thermal transients. ## Interface and protection: SPI, UART, and over-temperature The BQ79612PAPRQ1 supports both SPI and UART interfaces. SPI gives a fast, deterministic register-access path for the host MCU; UART allows daisy-chaining multiple monitors across a single twisted pair, which is common in large automotive packs where you need voltage and temperature data from every cell group. Over-temperature fault protection is a standalone feature — it can trigger a shutdown or alert without waiting for the host to poll. That saves firmware complexity and speeds the safety response. ## Package and mounting Housed in a 64-PowerTQFP with a 10x10 mm HTQFP footprint. The PowerTQFP variant has an exposed pad for thermal dissipation — important when the monitor is running continuous cell measurements near the pack. Surface-mount assembly is standard; the 64-pin count keeps routing manageable on a four-layer automotive PCB.","metaTitle":"BQ79612PAPRQ1 Automotive Battery Monitor, AEC-Q100","metaDescription":"TI BQ79612PAPRQ1 precision battery monitor for 12S Li-ion stacks. AEC-Q100 qualified, SPI/UART, over-temp protection, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":"Functional Safety (FuSa)","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Grade":"Automotive","Series":"Functional Safety (FuSa)","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Monitor","Interface":"SPI, UART","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Package / Case":"64-PowerTQFP","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature","Battery Chemistry":"Lithium Ion","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"64-HTQFP (10x10)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.79","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.79000","currency":"USD"},{"qty":10,"price":"$12.67000","currency":"USD"},{"qty":25,"price":"$12.14520","currency":"USD"},{"qty":100,"price":"$10.70100","currency":"USD"},{"qty":250,"price":"$10.17576","currency":"USD"},{"qty":500,"price":"$9.51924","currency":"USD"},{"qty":1000,"price":"$8.73145","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/90051d1d4848e009e7092b85625e3374.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the BQ79612PAPRQ1 AEC-Q100 qualified?","answer":"Yes, the BQ79612PAPRQ1 is AEC-Q100 qualified, which is the standard automotive stress qualification for ICs. This covers the reliability screening required for tier-1 automotive supply."},{"question":"Does BQ79612PAPRQ1 support SPI interface?","answer":"Yes, the BQ79612PAPRQ1 supports both SPI and UART interfaces. SPI is available for direct register access, and UART supports daisy-chain communication across multiple monitors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ79612PAPRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ79612PAPRQ1 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}}