{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ27350PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ27350PW","canonicalUrl":"https://icboms.com/texas-instruments/BQ27350PW","factsUrl":"https://icboms.com/api/mcp/products/BQ27350PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ27350PW Impedance Track™ fuel gauge, single-cell Li-Ion/Polymer, I²C interface, Battery Authentication, 20-TSSOP package, -40°C to 85°C.","salesMarkdown":"## Board-level fit for a single-cell Li-Ion pack gauge The BQ27350PW is a single-cell Li-Ion/Polymer fuel gauge from Texas Instruments' Impedance Track™ series — the algorithm learns the battery's impedance profile over charge/discharge cycles, so reported state-of-charge accuracy improves with use rather than drifting. It communicates over an I²C bus, which means the host MCU reads remaining capacity, voltage, and current through a standard two-wire interface — no external ADC or coulomb-counter needed. The 20-TSSOP package (0.65 mm pitch, 4.40 mm body width) fits on a 2-layer board with careful fan-out, but the fine pitch makes hand-solder rework tricky — a stencil and reflow profile tuned for TSSOP are recommended for production. ## NRND — what that means for your BOM Texas Instruments lists the BQ27350PW as NRND (Not Recommended for New Designs) — the part is still orderable for existing production runs, but TI will not qualify it for new projects. If you are migrating a design, you will need to evaluate a different fuel-gauge family (e.g., BQ274xx series) with a board spin. ## Battery Authentication stops counterfeit packs The BQ27350PW includes a Battery Authentication function — the host can challenge the gauge to verify the pack is genuine, which blocks aftermarket or counterfeit battery swaps in field-deployed equipment. The I²C interface carries both the fuel-gauge data and the authentication handshake on the same bus — no extra pins needed. Pull-up resistors (typically 4.7 kΩ to 10 kΩ) must be on the board; the gauge does not include them internally.","metaTitle":"BQ27350PW Texas Instruments Fuel Gauge, Impedance Track","metaDescription":"Texas Instruments BQ27350PW Impedance Track™ fuel gauge, single-cell Li-Ion/Polymer, I²C, 20-TSSOP. NRND — order via RFQ for production or last-time-buy fills.","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":"Tube","Function":"Battery Authentication","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","Product Status":"Not For New Designs","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"-","Battery Chemistry":"Lithium Ion/Polymer","Base Product Number":"BQ27350","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"20-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.6724","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/84c596882a93522808e5af4f2d32c9b5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ27350PW/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for BQ27350PW?","answer":"The BQ27350PW is NRND but still orderable. No shelf-stock claim is made here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ27350PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ27350PW when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T03:19:35.744Z","lastPublished":"2026-07-21T03:19:35.744Z","indexable":true}}