{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ771808DPJR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ771808DPJR","canonicalUrl":"https://icboms.com/texas-instruments/BQ771808DPJR","factsUrl":"https://icboms.com/api/mcp/products/BQ771808DPJR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ771808DPJR battery protection IC, Li-Ion 2-5 cell, over-voltage fault protection, surface mount 8-WDFN exposed pad (8-WSON 3x4), -40°C to 110°C operating temperature, Tape & Reel.","salesMarkdown":"## Battery protection for 2-5 cell Li-Ion stacks The Texas Instruments BQ771808DPJR is a Li-Ion battery protection IC that monitors and protects 2 to 5 series-connected cells against over-voltage faults. It operates over a -40°C to 110°C temperature range. ## Over-voltage protection — what it covers and what it doesn't This part provides over-voltage fault protection only. It does not include over-current, short-circuit, or under-voltage detection. For a BOM that needs comprehensive protection (over-current, short, temperature), you would pair this with a separate protector or fuel gauge. The 2-5 cell range gives flexibility across different series-stack configurations, but the protection scope is narrow — design the rest of the safety chain accordingly. ## Package and mounting Surface-mount package with exposed pad (8-WSON 3x4). The exposed pad must be soldered to a thermal land on the PCB for rated dissipation. Tape & Reel (TR) or Cut Tape (CT) options available. ## Lifecycle and compliance ROHS3 compliant. No known PCN for this order code.","metaTitle":"BQ771808DPJR Battery Protection IC, 2-5 Cell Li-Ion, 8-WSON","metaDescription":"TI BQ771808DPJR Li-Ion battery protection IC for 2-5 cells, over-voltage fault protection, -40°C to 110°C, 8-WSON package. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Protection","Mounting Type":"Surface Mount","Package / Case":"8-WDFN Exposed Pad","Number of Cells":"2 ~ 5","lifecycle_stage":"eol_hot","Fault Protection":"Over Voltage","Battery Chemistry":"Lithium Ion","Operating Temperature":"-40°C ~ 110°C (TA)","Supplier Device Package":"8-WSON (3x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.35000","currency":"USD"},{"qty":3000,"price":"$0.64650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/86132f03e7053d8fb5c9abb540348b68.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for BQ771808DPJR?","answer":"The BQ79612PAPRQ1 is a different tier — it is an automotive-grade (AEC-Q100) battery monitor with SPI/UART interface, over-temperature protection, and a 1-cell range. It is not a pin-compatible or drop-in replacement. For a direct functional equivalent within the same protection-IC family, no official cross-reference is listed; the BQ771808DPJR is the active part for 2-5 cell over-voltage protection."},{"question":"What is the function of BQ771808DPJR?","answer":"It is a Li-Ion battery protection IC that monitors 2 to 5 series cells and triggers a fault output on over-voltage conditions. It does not provide over-current, short-circuit, or under-voltage protection."},{"question":"What package does BQ771808DPJR come in?","answer":"It is supplied in an 8-WDFN exposed pad package (also designated 8-WSON 3x4), available in Tape & Reel or Cut Tape."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ771808DPJR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ771808DPJR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-13T19:36:15.044Z","lastPublished":"2026-07-13T19:36:15.044Z","indexable":true}}