{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25871YFFR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25871YFFR","canonicalUrl":"https://icboms.com/texas-instruments/BQ25871YFFR","factsUrl":"https://icboms.com/api/mcp/products/BQ25871YFFR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25871YFFR, single-cell Li-Ion/Polymer battery charger, I²C interface, 7A max charge current, 6V max supply, 42-DSBGA (2.8x2.5) package, -40°C to 85°C operation, Tape & Reel.","salesMarkdown":"## 7A single-cell Li-Ion charger with I²C control The Texas Instruments BQ25871YFFR is a single-cell Li-Ion/Polymer battery charger delivering up to 7A constant charge current, managed through an I²C interface. It integrates over-current, over-temperature, over-voltage, and reverse-current fault protection, reducing external monitoring components on the board. ## Charge current and input voltage headroom Maximum charge current is 7A — this is the continuous constant-current ceiling for a single cell. The maximum supply voltage is 6V, so the input rail must stay below that; a 5V USB or adapter supply is typical, with headroom for cable drop. The I²C interface lets the host adjust the charge current, termination voltage, and timer settings dynamically. ## Fault protection set reduces external bill On-chip fault protection covers over-current, over-temperature, over-voltage, and reverse-current conditions. This means the design can skip a separate battery protector or current-sense resistor in many applications, saving board area and BOM cost.","metaTitle":"BQ25871YFFR 7A I²C Li-Ion Charger, 42-DSBGA","metaDescription":"Texas Instruments BQ25871YFFR single-cell Li-Ion/Polymer charger with 7A max charge current, I²C interface, fault 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)","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"42-UFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over Voltage, Reverse Current","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant","Base Product Number":"BQ25871","Battery Pack Voltage":"-","Charge Current - Max":"7A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"-","Voltage - Supply (Max)":"6V","Supplier Device Package":"42-DSBGA (2.8x2.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0550","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3ef70afc9a6a129057d7d4b9022982a5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current and input voltage of BQ25871YFFR?","answer":"Maximum charge current is 7A constant-current, and the maximum supply voltage is 6V. The input rail should be designed to stay below 6V absolute maximum."},{"question":"Does BQ25871YFFR support I²C communication?","answer":"Yes, the BQ25871YFFR uses an I²C interface for host control of charge parameters and status monitoring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25871YFFR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25871YFFR 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}}