{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24298RTWT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24298RTWT","canonicalUrl":"https://icboms.com/texas-instruments/BQ24298RTWT","factsUrl":"https://icboms.com/api/mcp/products/BQ24298RTWT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24298RTWT single-cell Li-Ion/Polymer battery charger, I²C interface, 3A max charge current, 4.2V battery pack voltage, 24-WFQFN exposed pad package.","salesMarkdown":"## Single-cell Li-Ion charger with I²C control The Texas Instruments BQ24298RTWT is a single-cell Lithium Ion/Polymer battery charger that takes its charge parameters over an I²C interface. It handles up to 3 A of programmable charge current and targets a 4.2 V battery pack voltage. The device integrates overcurrent, overtemperature, and overvoltage fault protection — the kind of safety set you want when the battery pack is right next to the user's hand. ## 3 A charge current and thermal reality in a 4×4 mm QFN The 3 A max charge current is the headline number, but in a 24-WFQFN with exposed pad (4×4 mm body), the real-world sustained current depends on board copper area and airflow. The I²C interface lets the host read the charger status and adjust the current down if the die temperature climbs — that is the practical way to keep the part inside its SOA without oversized copper.","metaTitle":"BQ24298RTWT I²C Single-Cell Li-Ion Charger, 3A, Active","metaDescription":"Texas Instruments BQ24298RTWT single-cell Li-Ion/Polymer charger with I²C interface, 3A max charge current, fault 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-WFQFN Exposed Pad","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24298","Battery Pack Voltage":"4.2V","Charge Current - Max":"3A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"-","Voltage - Supply (Max)":"6.2V","Supplier Device Package":"24-WQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.8500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a484cdfb1b7b64c7122e788d5efc83d7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can the BQ24298RTWT charge two lithium-ion cells?","answer":"No — this part is designed for a single cell. The number of cells is listed as 1, and the battery pack voltage is 4.2 V, which matches a single Li-ion cell."},{"question":"What is the charge current of the BQ24298RTWT?","answer":"The maximum charge current is 3 A, and it is constant-programmable via the I²C interface."},{"question":"Is the BQ24298RTWT compatible with 4.2V batteries?","answer":"Yes — the battery pack voltage is specified as 4.2 V, which is the standard full-charge voltage for a single Li-ion or Li-Polymer cell."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24298RTWT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24298RTWT 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}}