{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24161BRGET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24161BRGET","canonicalUrl":"https://icboms.com/texas-instruments/BQ24161BRGET","factsUrl":"https://icboms.com/api/mcp/products/BQ24161BRGET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24161BRGET single-cell Li-Ion/Polymer battery charger IC, 2.5A max charge current, I2C programmable, 24-VQFN (4x4) package, -40 to 85°C operating range.","salesMarkdown":"The BQ24161BRGET from Texas Instruments is a single-cell Li-Ion/Polymer battery charger IC that delivers a programmable constant-current charge up to 2.5 A max. The charge current is set via the I2C interface, so the host MCU can adjust the rate dynamically — useful for thermal management or fast-charge profiles. ## I2C control and fault protection All charge parameters — current, voltage, termination — are written over the I2C bus, eliminating the need for external programming resistors. The part includes over-temperature and over-voltage fault protection, which is essential for safe Li-ion charging in systems where the host may lose control. ## Supply rail and temperature range Maximum supply voltage is 10 V, so a 5 V USB bus or a 9 V wall adapter both fit without a pre-regulator. ## Package and footprint Housed in a 24-VFQFN with exposed pad (4x4 mm), the BQ24161BRGET requires a thermal land pattern on the PCB to sink heat from the 2.5 A charge pass element. The supplier device package is 24-VQFN (4x4).","metaTitle":"BQ24161BRGET Li-Ion Charger IC, 2.5A, I2C, 24-VQFN","metaDescription":"Texas Instruments BQ24161BRGET single-cell Li-Ion/Polymer charger IC. 2.5A max charge current, I2C interface, over-temp and over-voltage 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)","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"24-VFQFN Exposed Pad","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":"24-VQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.6700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1a10695af1577ae7f81f354f97cb749a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I set the charge current on BQ24161BRGET?","answer":"Charge current is set via the I2C interface. The host writes a register value to select the constant-current level up to 2.5 A max. No external resistor is needed."},{"question":"Is BQ24161BRGET compatible with 2S battery packs?","answer":"No. The BQ24161BRGET is a single-cell charger (1 cell). It is designed for 3.7 V Li-Ion/Polymer packs only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24161BRGET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24161BRGET 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}}