{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ27505YZGT-J1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ27505YZGT-J1","canonicalUrl":"https://icboms.com/texas-instruments/BQ27505YZGT-J1","factsUrl":"https://icboms.com/api/mcp/products/BQ27505YZGT-J1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ27505YZGT-J1, Impedance Track™ Series, Battery Monitor, I²C, 1 Cell, Lithium Ion, -40°C~85°C, 12-UFBGA/DSBGA.","salesMarkdown":"## Single-cell fuel gauge with impedance tracking The Texas Instruments BQ27505YZGT-J1 is a single-cell Li-Ion battery monitor from the Impedance Track™ series, designed to report state-of-charge with an algorithm that learns the battery's impedance over charge/discharge cycles. It communicates over an I²C interface to the host, making it a drop-in for portable systems that already use that bus for battery management. ## NRND — plan a transition for new BOMs This part carries a Not Recommended for New Designs (NRND) status. It is still available for existing production runs, but TI advises against qualifying it into a new BOM. For a new design, look across the BQ2750x family for a current-generation replacement with the same Impedance Track™ core and I²C interface. The board footprint must match TI's recommended land pattern; the small body (roughly 2.0 × 1.5 mm) leaves little margin for misalignment. ## Temperature grade and operating envelope This is not a part for under-hood automotive or extended 105°C industrial applications — the gauge IC itself may survive, but the battery model accuracy degrades outside the characterised range.","metaTitle":"BQ27505YZGT-J1 Battery Monitor, Impedance Track™, NRND","metaDescription":"Texas Instruments BQ27505YZGT-J1 single-cell Li-Ion battery monitor with Impedance Track™. I²C interface, 12-DSBGA package, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"Impedance Track™","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Monitor","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"12-UFBGA, DSBGA","Product Status":"Not For New Designs","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":"$5.0300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fbq27505","sourceUrl":null},"ai":{"faq":[{"question":"Is BQ27505YZGT-J1 discontinued or obsolete?","answer":"It has not been declared obsolete, but TI will not support new design-ins. Existing production can continue while supply lasts."},{"question":"What is the replacement or alternative for BQ27505YZGT-J1?","answer":"Look at current-generation BQ2750x family members with the same Impedance Track™ algorithm and I²C interface as a functional alternative, but verify package and pinout compatibility from the respective datasheets."},{"question":"Is BQ27505YZGT-J1 compatible with I2C interface?","answer":"Yes, the BQ27505YZGT-J1 communicates over an I²C interface to the host processor for data readout and configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ27505YZGT-J1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ27505YZGT-J1 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}}