{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24251YFFT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24251YFFT","canonicalUrl":"https://icboms.com/texas-instruments/BQ24251YFFT","factsUrl":"https://icboms.com/api/mcp/products/BQ24251YFFT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24251YFFT, single-cell Li-Ion linear charger, I²C programmable charge current, 2A max, over-current/over-temperature/over-voltage protection, -40°C to 85°C, 30-DSBGA package.","salesMarkdown":"## Single-cell Li-Ion charger with I²C programmability The Texas Instruments BQ24251YFFT is a single-cell Lithium Ion battery charger that uses an I²C interface to set the charge current — a step up from fixed-current or resistor-programmed chargers, because the firmware can adjust the charge profile on the fly without a board spin. Maximum charge current is 2 A, and the battery regulation voltage is 4.2 V, which covers the standard single-cell Li-Ion termination voltage used in portable electronics, power tools, and IoT edge nodes. The part carries over-current, over-temperature, and over-voltage fault protection — a minimum requirement for any charger that will be sold as part of a finished product, since a runaway Li-Ion cell is a field-recall event. ## NRND — plan a last-time buy or a pin-compatible migration That means TI will continue to manufacture it for existing production, but they are not accepting new design wins. For an existing BOM that already uses this part, the NRND flag means you should evaluate a last-time-buy quantity to cover the remaining production run, or validate a drop-in alternate before TI issues the final EOL notice. ## 30-DSBGA — what the package means for your board The 30-DSBGA (0.4 mm pitch, wafer-level chip-scale package) is the smallest footprint option for this charger, but it comes with trade-offs: the solder joints are under the die, so optical inspection requires an X-ray station, and rework needs a hot-air profile that matches the 30-ball array. The board must have a solder-mask-defined pad layout per TI's application note for DSBGA packages.","metaTitle":"BQ24251YFFT single-cell Li-Ion charger, I²C, 2A, 30-DSBGA","metaDescription":"Texas Instruments BQ24251YFFT single-cell Li-Ion battery charger with I²C interface, 2A max charge current, fault protection. NRND status.","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":"30-UFBGA, DSBGA","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":"30-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fe6fdfcc415af00e5c91c76b6649c821.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BQ24251YFFT obsolete or NRND?","answer":"TI still manufactures it for existing production, but it is not intended for new design starts. For a new BOM, look at current-generation single-cell chargers in the BQ2425x family with the same I²C interface and 30-DSBGA package."},{"question":"What is the maximum charge current of BQ24251YFFT?","answer":"The maximum charge current is 2 A, programmable via I²C. The battery regulation voltage is fixed at 4.2 V for single-cell Li-Ion packs."},{"question":"Does BQ24251YFFT support I²C communication?","answer":"Yes, the charge current is set through an I²C interface. This allows the system microcontroller to adjust the charge rate dynamically based on input current limit, battery temperature, or system load — a capability that fixed-resistor chargers cannot match."},{"question":"What is the replacement for BQ24251YFFT?","answer":"For a new design, evaluate current-production single-cell chargers in TI's BQ2425x family that share the same I²C interface and 30-DSBGA package — confirm the register map and pinout compatibility against your firmware before committing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24251YFFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24251YFFT 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}}