{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24381DSGR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24381DSGR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24381DSGR","factsUrl":"https://icboms.com/api/mcp/products/BQ24381DSGR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24381DSGR, Battery Protection IC, Li-Ion, Over Current, Over Temperature, Over/Under Voltage, Short Circuit Protection, -40°C to 125°C, 8-WFDFN Exposed Pad / 8-WSON (2x2), Surface Mount.","salesMarkdown":"## Li-Ion battery protection with four-way fault coverage The Texas Instruments BQ24381DSGR is a dedicated battery protection IC for single-cell Lithium Ion packs, integrating protection against over-current, over-temperature, over/under-voltage, and short-circuit faults. The protection set covers the four failure modes that dominate Li-Ion cell damage: over-current from a load short or charger fault, over-temperature from excessive charge/discharge current, over-voltage from a failed charger regulator, and under-voltage from deep discharge that can trigger cell instability on recharge. The IC monitors the battery voltage and current continuously; when a fault exceeds the internal threshold, the output driver opens the series pass element (typically an N-channel MOSFET) to isolate the cell. ## Package and board integration Housed in an 8-WSON package with a 2x2 mm body (supplier device package 8-WSON), the BQ24381DSGR occupies minimal PCB area, which matters for space-constrained designs like TWS earbuds, wearable health monitors, or compact IoT sensors.","metaTitle":"BQ24381DSGR Battery Protection IC, Over/Under-Voltage","metaDescription":"Texas Instruments BQ24381DSGR Li-Ion battery protection IC with over-current, over-temperature, over/under-voltage, and short-circuit protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Protection","Interface":"-","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","Product Status":"Active","Number of Cells":"-","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over/Under Voltage, Short Circuit","Battery Chemistry":"Lithium Ion","Base Product Number":"BQ24381","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"8-WSON (2x2)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3550","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3627ab22c7742cc16d635116d3d450d4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can BQ24381DSGR be used for a 1-cell Li-Ion battery?","answer":"Yes, the BQ24381DSGR is designed for single-cell Lithium Ion battery protection, with fault thresholds set for the typical 4.2 V full-charge voltage of a 1-cell Li-Ion pack."},{"question":"What are the over-voltage and over-current thresholds for BQ24381DSGR?","answer":"The exact threshold values are specified in the device datasheet. The IC provides protection against over-current, over-temperature, over/under-voltage, and short-circuit conditions, but the precise trip points are not listed in the summary specifications available here."},{"question":"Is the BQ24381DSGR compatible with a 2-cell Li-Ion pack?","answer":"No, the BQ24381DSGR is specified for Lithium Ion battery chemistry and is intended for single-cell applications. A 2-cell pack would exceed the over-voltage protection threshold of this device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24381DSGR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24381DSGR 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}}