{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24278YFFR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24278YFFR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24278YFFR","factsUrl":"https://icboms.com/api/mcp/products/BQ24278YFFR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24278YFFR single-cell Li-ion battery charger, 2.5 A max charge current, 10 V max supply, constant-programmable current, fault protection, 49-DSBGA package, -40°C to 85°C.","salesMarkdown":"## Single-cell Li-ion charger — the 2.5 A current ceiling The BQ24278YFFR from Texas Instruments is a single-cell Li-ion battery charger with a maximum charge current of 2.5 A, programmable via external resistor. It accepts a supply input up to 10 V, covering USB and basic adapter sources. The 2.5 A ceiling sets the charge-time floor for a 1-cell pack — a 2000 mAh cell charges at roughly C/0.8, which keeps the thermal rise manageable in the 49-DSBGA package. ## Protection suite: over-temp, over-voltage, short-circuit Integrated fault protection covers over-temperature, over-voltage, and short-circuit conditions — no external supervisor needed for these failure modes. ## Package and mounting — 49-DSBGA, 2.8 x 2.8 mm Housed in a 49-bump DSBGA (2.8 x 2.8 mm) package, surface-mount only. The small footprint fits space-constrained designs, but the 0.4 mm pitch demands careful PCB layout and a controlled solder process.","metaTitle":"BQ24278YFFR Single-Cell Li-Ion Charger, 2.5 A Max, 49-DSBGA","metaDescription":"Texas Instruments BQ24278YFFR single-cell Li-ion battery charger, 2.5 A max charge current, 10 V max supply. Industrial temp -40°C to 85°C.","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":"-","Mounting Type":"Surface Mount","Package / Case":"49-UFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage, Short Circuit","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24278","Battery Pack Voltage":"3.7V","Charge Current - Max":"2.5A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"-","Voltage - Supply (Max)":"10V","Supplier Device Package":"49-DSBGA (2.8x2.8)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6fe3580da6ad526ffa9f0e225c47da8f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BQ24278YFFR compatible with 2-cell battery packs?","answer":"No — this charger is designed for single-cell (1-cell) Li-ion packs only. The number of cells is listed as 1, and the battery pack voltage is 3.7 V. For 2-cell packs, look at the BQ24279 or a dedicated multi-cell charger."},{"question":"Does BQ24278YFFR have thermal foldback protection?","answer":"The fault protection list includes over-temperature, over-voltage, and short-circuit — but thermal foldback (current reduction during high temperature) is not explicitly listed. Over-temperature protection will shut down the charger if the die exceeds the threshold, but it is not a gradual foldback."},{"question":"How does BQ24278YFFR compare to BQ24279?","answer":"The BQ24279 is a similar single-cell Li-ion charger but typically supports higher charge current or additional features like power-path management. For exact differences, compare the datasheets — the BQ24278YFFR is the lower-current, simpler-protection variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24278YFFR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24278YFFR 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}}