{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24161BYFFR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24161BYFFR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24161BYFFR","factsUrl":"https://icboms.com/api/mcp/products/BQ24161BYFFR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24161BYFFR, single-cell Li-Ion/Polymer battery charger, 2.5 A max charge current, I²C interface, 49-DSBGA 2.8x2.8 mm package, -40°C to 85°C operating temperature.","salesMarkdown":"## 2.5 A programmable charge current, I²C control The BQ24161BYFFR from Texas Instruments is a single-cell Li-Ion/Polymer switching charger with a programmable constant-current charge up to 2.5 A max. The I²C interface lets the host set the charge current and monitor status without extra GPIOs. Over-temperature and over-voltage fault protection are built in, so the charger handles adapter glitches without the MCU having to intervene. ## Input voltage and thermal limits for field fit Supply max is 10 V, which covers standard 5 V USB and 9 V wall adapters. The 49-DSBGA package (2.8 x 2.8 mm) is tiny, but that BGA footprint means the board needs a stencil and a reflow profile; this is not a hand-solder part for a field swap.","metaTitle":"BQ24161BYFFR battery charger IC, 2.5 A max, I²C, 49-DSBGA","metaDescription":"Texas Instruments BQ24161BYFFR single-cell Li-Ion/Polymer charger, 2.5 A programmable current, I²C interface, 49-DSBGA package. Active lifecycle.","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)","Interface":"I²C","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","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24161","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":"$2.8350","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1a10695af1577ae7f81f354f97cb749a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the charge current of BQ24161BYFFR?","answer":"The maximum charge current is 2.5 A, programmable via I²C. The charger operates as a constant-current source during the bulk charge phase."},{"question":"What package is BQ24161BYFFR in?","answer":"It comes in a 49-DSBGA (2.8 x 2.8 mm) package, surface-mount only. The tiny BGA footprint requires a reflow oven — not a hand-solder field repair."},{"question":"Is BQ24161BYFFR a switching charger?","answer":"Yes, it is a switching (constant-current programmable) charger for single-cell Li-Ion/Polymer batteries. The I²C interface provides digital control of charge parameters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24161BYFFR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24161BYFFR 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}}