{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ27425YZFT-G2B","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ27425YZFT-G2B","canonicalUrl":"https://icboms.com/texas-instruments/BQ27425YZFT-G2B","factsUrl":"https://icboms.com/api/mcp/products/BQ27425YZFT-G2B","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ27425YZFT-G2B, Impedance Track™ Series, Battery Monitor, I²C Interface, 1 Cell, Lithium Ion, -40°C~85°C, Surface Mount, 15-UFBGA/DSBGA.","salesMarkdown":"## Single-cell Li-Ion fuel gauge with Impedance Track™ The Texas Instruments BQ27425YZFT-G2B is a single-cell battery monitor that uses the Impedance Track™ algorithm to report state-of-charge, voltage, current, and temperature over an I²C interface. It is designed for portable devices running on one Lithium Ion cell, where accurate remaining-capacity prediction is needed across the full discharge curve. ## What the I²C interface and single-cell limit mean for the BOM The I²C bus is the only host interface — the gauge is a slave device, so the host MCU must have an I²C port or bit-bang the protocol. No SMBus or HDQ option here; if your existing firmware stack uses one of those, budget a porting effort. Because the BQ27425YZFT-G2B supports exactly one cell, a 2-series pack requires a different gauge (e.g. the BQ27426 or a multi-cell device). The single-cell limit is hard — the internal voltage divider and coulomb counter are scaled for a 1S configuration. ## Package and assembly note: 15-DSBGA The 15-bump DSBGA (0.5 mm pitch, 0.3 mm ball diameter) requires a solder-mask-defined pad and a stencil aperture matched to the ball size. The small package means the PCB fan-out is tight — a 4-layer board with microvias is typical for production, though a 2-layer board with dog-bone fan-out works for prototyping if the trace width and spacing are within the fabricator's capability.","metaTitle":"BQ27425YZFT-G2B Battery Monitor, Impedance Track™, I²C","metaDescription":"Texas Instruments BQ27425YZFT-G2B single-cell Li-Ion battery monitor with Impedance Track™ fuel gauging. I²C interface, -40°C to 85°C, 15-DSBGA.","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); Cut Tape (CT)","Function":"Battery Monitor","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"15-UFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"-","Battery Chemistry":"Lithium Ion","Base Product Number":"BQ27425","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"15-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.3600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55eb233c3984a97e133480e2221f3e2e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can BQ27425YZFT-G2B be used with a 2-cell battery pack?","answer":"No. The BQ27425YZFT-G2B is designed for exactly one Lithium Ion cell. A 2-series pack requires a different gauge, such as the BQ27426 or a multi-cell equivalent from the Impedance Track™ family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ27425YZFT-G2B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ27425YZFT-G2B 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}}