{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25302RTER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25302RTER","canonicalUrl":"https://icboms.com/texas-instruments/BQ25302RTER","factsUrl":"https://icboms.com/api/mcp/products/BQ25302RTER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25302RTER single-cell Li-Ion/Polymer battery charger IC, USB interface, programmable charge current up to 2A, 16-WFQFN exposed pad package, Tape & Reel.","salesMarkdown":"## Package and board-fit for the 16-WQFN The BQ25302RTER comes in a 16-WFQFN Exposed Pad package (3x3 mm body, 16-WQFN supplier device package). The 0.5 mm pitch QFN demands a solder-mask-defined pad and a via array under the thermal pad; a 2-layer board can handle the thermal dissipation if the copper pour on the bottom layer is stitched through. ## Charge current ceiling and protection coverage Rated for a maximum charge current of 2A, programmable via an external resistor — the constant-current phase is set by the resistor value, not by a fixed internal reference. The battery pack voltage terminates at 4.4V, which suits standard single-cell Li-Ion and Li-Polymer cells with a 4.4V charge ceiling. The input supply maximum is 6.2V, so a standard 5V USB bus or a 5V wall adapter sits well inside the operating range without an external clamp. Fault protection covers overcurrent, overvoltage, and short-circuit conditions — the device latches off or cycles on a fault, which removes the need for a separate protection FET in most single-cell portable designs. ## USB interface and temperature grade The USB interface means the charger negotiates the input current limit per the USB BC1.2 spec or a simple D+/D- detection scheme — the actual limit is set by the external resistor, not by the interface itself. The charge current must be derated above 85°C ambient per the thermal foldback curve; the QFN package's thermal pad keeps the junction below the 125°C limit at 2A charge in a 25°C ambient with a proper PCB land.","metaTitle":"TI BQ25302RTER 1-cell Li-Ion charger, 2A, USB, 16-WQFN","metaDescription":"Texas Instruments BQ25302RTER active 1-cell Li-Ion/Polymer charger, 2A max, USB interface, 16-WFQFN. Quoted to order.","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":"USB","Mounting Type":"Surface Mount","Package / Case":"16-WFQFN Exposed Pad","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Voltage, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ25302","Battery Pack Voltage":"4.4V","Charge Current - Max":"2A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current","Voltage - Supply (Max)":"6.2V","Supplier Device Package":"16-WQFN (3x3)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/00c3e0913a4c870bc66c5568b2e50180.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ25302RTER/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy BQ25302RTER and get a price?","answer":"Sourced through independent and authorized distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25302RTER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25302RTER when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}