{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ27520YZFR-G4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ27520YZFR-G4","canonicalUrl":"https://icboms.com/texas-instruments/BQ27520YZFR-G4","factsUrl":"https://icboms.com/api/mcp/products/BQ27520YZFR-G4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ27520YZFR-G4, Impedance Track™ series, Battery Monitor, single-cell Lithium Ion, I²C interface, 15-DSBGA package, -40°C to 85°C operating temperature.","salesMarkdown":"## Single-cell fuel gauge with Impedance Track™ — no calibration needed The BQ27520YZFR-G4 is a Texas Instruments battery monitor IC from the Impedance Track™ series, designed for single-cell Lithium Ion packs. Its core advantage is that it learns the battery's discharge curve over time, so you skip the factory calibration step that older gauges require. ## Package and footprint — 15-DSBGA, no exposed pad to worry about Housed in a 15-bump DSBGA (0.4 mm pitch typical), the BQ27520YZFR-G4 is a true chip-scale package. No thermal pad, no exposed paddle — the die sits on the board with solder balls directly on the pads. That keeps the footprint tiny but means the board must be clean and the reflow profile tight; a misaligned stencil shorts adjacent bumps. Surface-mount only; no hand-soldering this one without a hot-air station and a steady hand. ## Lifecycle and supply — active, no LTB pressure Listed as Active by Texas Instruments. No last-time-buy notice, no end-of-life signal. For a BOM that needs this fuel gauge, there is no urgency to stockpile or qualify a second source.","metaTitle":"BQ27520YZFR-G4 Battery Monitor, Impedance Track","metaDescription":"Texas Instruments BQ27520YZFR-G4 single-cell Li-Ion battery monitor with Impedance Track™. I²C interface, 15-DSBGA package, -40°C to 85°C.","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","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"-","Battery Chemistry":"Lithium Ion","Base Product Number":"BQ27520","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"15-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e0d34f9c94efd41e8448e8a5f2d346da.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the BQ27520YZFR-G4 battery monitor IC used for?","answer":"It monitors a single-cell Lithium Ion battery pack using the Impedance Track™ algorithm, reporting state-of-charge and voltage over an I²C bus. Typical applications include portable medical devices, power tools, and IoT endpoints where accurate fuel gauging without calibration is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ27520YZFR-G4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ27520YZFR-G4 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}}