{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24251RGER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24251RGER","canonicalUrl":"https://icboms.com/texas-instruments/BQ24251RGER","factsUrl":"https://icboms.com/api/mcp/products/BQ24251RGER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24251RGER, single-cell Li-Ion battery charger, I²C programmable charge current up to 2A, 24-VFQFN exposed-pad package, -40°C to 85°C operation.","salesMarkdown":"## Single-cell Li-Ion charger with I²C programmability The BQ24251RGER is a single-cell Lithium Ion battery charger from Texas Instruments that accepts a supply up to 10.5V and delivers a programmable constant charge current up to 2A via I²C control. This makes it suited for portable devices where the host microcontroller adjusts the charge rate based on battery temperature or input power limits. The charger integrates fault protection against overcurrent, overtemperature, and overvoltage conditions, reducing the need for external supervisory circuitry. ## Parametric highlights and package details The 24-VFQFN Exposed Pad package (4x4 mm body) suits compact portable designs where thermal dissipation through the pad is needed. The battery pack voltage is regulated to 4.2V, and the charge current is constant and programmable — only the current is adjustable via I²C, not the voltage. ## NRND status and sourcing posture This means the part is still available for existing production but is not intended for new designs — a successor or alternative should be evaluated for any new BOM. The part is available in Tape & Reel (TR) and Cut Tape (CT) options.","metaTitle":"BQ24251RGER – TI 2A I²C Li-Ion Charger, NRND, Sourcing Guide","metaDescription":"BQ24251RGER from Texas Instruments: single-cell Li-Ion charger, 2A max, I²C interface, 24-VQFN package.","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":"$4.2800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fe6fdfcc415af00e5c91c76b6649c821.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BQ24251RGER obsolete or still available?","answer":"It is NRND (Not Recommended for New Designs) per Texas Instruments. Existing production can still source the part, but new BOMs should plan for a replacement."},{"question":"What is the maximum charge current of BQ24251RGER?","answer":"2A, programmable via I²C. The charge current is constant and set by the host controller."},{"question":"What communication interface does BQ24251RGER use?","answer":"I²C. The host uses this bus to set the charge current and read status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24251RGER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24251RGER 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}}