{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24251RGET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24251RGET","canonicalUrl":"https://icboms.com/texas-instruments/BQ24251RGET","factsUrl":"https://icboms.com/api/mcp/products/BQ24251RGET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24251RGET single-cell Li-Ion battery charger IC, I²C programmable charge current up to 2A, 4.2V battery pack voltage, 24-VQFN (4x4) package, -40°C to 85°C operating range, NRND lifecycle.","salesMarkdown":"## Single-cell Li-Ion charger with I²C programmability The Texas Instruments BQ24251RGET is a single-cell lithium-ion battery charger IC in a 24-VFQFN Exposed Pad package (24-VQFN 4x4 mm). It charges a single Li-Ion cell to a 4.2V battery pack voltage with a constant-current charge that is programmable via the I²C interface up to a maximum of 2A. ## What the 2A charge current and I²C control mean for your BOM The 2A maximum charge current sets the charging speed for a single-cell Li-Ion pack — a 2000 mAh cell charges in roughly one hour at that rate. The I²C interface allows the host microcontroller to adjust the charge current dynamically, which is useful for thermal management or charging from a limited-current USB source. The supply voltage maximum is 10.5V, so this part can operate from a 5V USB bus or a higher-voltage wall adapter without an external pre-regulator. Fault protection is built in: over-current, over-temperature, and over-voltage protection are all on-chip, which simplifies the BOM by eliminating external supervisory components. ## NRND — not for new designs, but still available TI is not actively promoting this part for new product introductions, but it remains available for existing production BOMs. ## Sourcing for existing BOMs and repairs For a production BOM that already specifies the BQ24251RGET, securing inventory now avoids a last-time-buy scramble later.","metaTitle":"BQ24251RGET Li-Ion Battery Charger IC, 2A I²C, NRND","metaDescription":"Texas Instruments BQ24251RGET single-cell Li-Ion battery charger with I²C interface, 2A max charge current, fault protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","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":"Not For New Designs","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24251","Battery Pack Voltage":"4.2V","Charge Current - Max":"2A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current","Voltage - Supply (Max)":"10.5V","Supplier Device Package":"24-VQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fe6fdfcc415af00e5c91c76b6649c821.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the BQ24251RGET still available for new designs?","answer":"No. TI does not recommend using it in new product development. It is still available for existing production BOMs and repair stock, but new designs should select a current-generation single-cell Li-Ion charger with I²C control from TI's active portfolio."},{"question":"What is the maximum charge current for the BQ24251RGET?","answer":"The maximum charge current is 2A, programmable via the I²C interface. The charge current is constant-current type, adjustable by the host microcontroller through the I²C bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24251RGET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24251RGET 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}}