{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ27505YZGR-J5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ27505YZGR-J5","canonicalUrl":"https://icboms.com/texas-instruments/BQ27505YZGR-J5","factsUrl":"https://icboms.com/api/mcp/products/BQ27505YZGR-J5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ27505YZGR-J5, Impedance Track™ series, Battery Monitor, I²C, Single-Cell Lithium Ion, -40°C~85°C, 12-DSBGA, Tape & Reel.","salesMarkdown":"## Impedance Track™ fuel gauge for single-cell Li-Ion packs The Texas Instruments BQ27505YZGR-J5 is a single-cell Lithium Ion battery monitor from the Impedance Track™ series, communicating over an I²C interface. It is designed for portable devices that need accurate state-of-charge reporting without a host-side coulomb counter — the gauge learns the battery's discharge curve over cycles and compensates for aging. The 12-DSBGA package (0.50 mm pitch BGA) keeps the footprint small but demands controlled reflow assembly and X-ray inspection — not a rework-friendly part. ## Single-cell fit — not for multi-cell stacks This gauge is specified for exactly one series cell. It cannot be used directly with a 2-cell or higher-voltage pack; the internal voltage measurement range and algorithm are calibrated for a single-cell stack. For multi-cell applications, look at the BQ40Z50 or BQ34Z100 family.","metaTitle":"BQ27505YZGR-J5 Battery Monitor, Impedance Track™","metaDescription":"BQ27505YZGR-J5 single-cell Li-Ion battery monitor from TI's Impedance Track™ series. I²C interface, -40°C to 85°C, 12-DSBGA. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"Impedance Track™","Package":"Tape & Reel (TR)","Function":"Battery Monitor","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"12-UFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"-","Battery Chemistry":"Lithium Ion","Base Product Number":"BQ27505","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"12-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.6920","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f02d7b30bc851ef59336131bfecd4051.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BQ27505YZGR-J5 compatible with BQ27500?","answer":"The BQ27505 and BQ27500 share the same base Impedance Track™ architecture and I²C interface, but they are not drop-in replacements. The BQ27505 uses a different firmware algorithm and chemistry profile. Check the TI application note for the specific BQ27500-to-BQ27505 migration steps — register maps and data flash parameters differ."},{"question":"What is the equivalent of BQ27505YZGR-J5?","answer":"The closest equivalent within the same family is the BQ27500 series, but firmware and chemistry configuration differ. No exact pin-compatible second source exists outside TI's own portfolio. For a drop-in alternative, the BQ27505YZGR-J5 itself remains the active reference."},{"question":"Can BQ27505YZGR-J5 be used with a 2-cell battery?","answer":"No. It is specified for one cell only. Using it with a 2-cell stack would exceed the input voltage range and the gauge algorithm is not calibrated for series cells. For multi-cell packs, use a gauge designed for that purpose, such as the BQ40Z50 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ27505YZGR-J5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ27505YZGR-J5 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}}