{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ26231PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ26231PW","canonicalUrl":"https://icboms.com/texas-instruments/BQ26231PW","factsUrl":"https://icboms.com/api/mcp/products/BQ26231PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ26231PW Battery Monitor, Multi-Chemistry Coulomb Counter, HDQ Interface, 8-TSSOP (0.173\", 4.40mm Width), Surface Mount, Tube.","salesMarkdown":"## Battery fuel-gauge in an 8-pin package The BQ26231PW is a multi-chemistry battery monitor that tracks charge and discharge by counting coulombs through a sense resistor — essentially a fuel gauge for portable or backup-power packs that reports remaining capacity over the HDQ single-wire interface. The 0.65 mm pin pitch is hand-solderable with a fine tip, but the small pad size means the hot-air profile needs to stay under 260 °C peak to avoid lifting the tiny leads. ## Rework and board-fit realities The 8-TSSOP package has a central thermal pad that is not present — the die sits on the leadframe, so the main heat path is through the pins. This makes rework easier than a QFN: no underfill to worry about, and the visible leads mean you can verify each solder joint after reflow. Pin 1 is clearly marked by a molded dot on the top surface and a chamfered corner on the package body. Orientation is unambiguous under a microscope, which cuts down the risk of a rotated placement during hand-assembly rework. Operating temperature range of -20°C to 70°C covers most indoor consumer and industrial equipment but does not reach automotive under-hood requirements. If the board sits near a hot battery pack in a sealed enclosure, the 70°C ceiling may be tight. ## Sourcing and compliance status No stock-holding claim is made here; the supply posture is per-quote.","metaTitle":"BQ26231PW Texas Instruments Battery Monitor, 8-TSSOP","metaDescription":"BQ26231PW Texas Instruments Battery Monitor with HDQ interface, 8-TSSOP package. Active production, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Battery Monitor","Interface":"HDQ","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Battery Chemistry":"Multi-Chemistry","Operating Temperature":"-20°C ~ 70°C (TA)","Supplier Device Package":"8-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.34","priceTiers":[{"qty":1,"price":"$11.34000","currency":"USD"},{"qty":10,"price":"$10.42500","currency":"USD"},{"qty":25,"price":"$9.99320","currency":"USD"},{"qty":100,"price":"$8.80490","currency":"USD"},{"qty":250,"price":"$8.37272","currency":"USD"},{"qty":500,"price":"$7.83256","currency":"USD"},{"qty":1000,"price":"$7.64400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0c11e3d49483337676c4974427596589.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ26231PW/alternatives.json"},"ai":{"faq":[{"question":"What is BQ26231PW's function and how does it differ from BQ296217DSGT?","answer":"The BQ26231PW is a battery monitor / coulomb counter that tracks charge state over an HDQ interface. The BQ296217DSGT is a battery protection IC focused on over-voltage fault protection for 2-4 lithium-ion cells — a different function entirely. They are not drop-in replacements; the BQ26231PW serves a fuel-gauging role, not a protection role."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ26231PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ26231PW when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}