{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25628RYKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25628RYKR","canonicalUrl":"https://icboms.com/texas-instruments/BQ25628RYKR","factsUrl":"https://icboms.com/api/mcp/products/BQ25628RYKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25628RYKR, I²C-controlled single-cell Li-Ion/Polymer linear charger, 18V max input, 2A max charge current, 18-PowerWFQFN (3x2.5 mm) package, -40°C to 85°C.","salesMarkdown":"The BQ25628RYKR accepts a maximum supply voltage of 18V, which covers USB-C PD at 15V and 12V wall adapters without an external front-end clamp. The 2A maximum charge current is the practical fast-charge ceiling for a single 1S Li-Ion or Li-Polymer cell in a handheld or portable device — above 2A the 3x2.5 mm QFN package thermal impedance (junction-to-ambient) becomes the limiting factor. ## Fault protection and operating range Built-in protection covers over-current, over-temperature, over-voltage, under-voltage, and short-circuit events.","metaTitle":"BQ25628RYKR — TI I²C 1-Cell Li-Ion Charger, 18V Input","metaDescription":"Texas Instruments BQ25628RYKR: I²C-controlled 1-cell Li-Ion/Polymer charger, 18V max input, 2A programmable charge current, 18-PowerWFQFN. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"18-PowerWFQFN","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over-Under Voltage, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Battery Pack Voltage":"4.8V (Max)","Charge Current - Max":"2A","Operating Temperature":"-40°C ~ 85°C (TA)","Programmable Features":"Current, Timer, Voltage","Voltage - Supply (Max)":"18V","Supplier Device Package":"18-WQFN-HR (3x2.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1500","priceTiers":[{"qty":1,"price":"$4.15000","currency":"USD"},{"qty":10,"price":"$3.72600","currency":"USD"},{"qty":25,"price":"$3.52240","currency":"USD"},{"qty":100,"price":"$3.05270","currency":"USD"},{"qty":250,"price":"$2.89616","currency":"USD"},{"qty":500,"price":"$2.59872","currency":"USD"},{"qty":1000,"price":"$2.19170","currency":"USD"},{"qty":3000,"price":"$1.43733","currency":"USD"},{"qty":6000,"price":"$1.38330","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/23e974d5c4d146983373ac41773135ef.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ25628RYKR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between BQ25628RYKR and BQ25629RYKR?","answer":"The BQ25629RYKR is the closest sibling in the same family. The primary difference is the I²C register map — the BQ25628RYKR uses a different default charge voltage and timer configuration. Pin-compatible in the same 18-WQFN-HR (3x2.5) package, but the firmware register writes must match the variant. Check the TI datasheet for the register-level delta before swapping."},{"question":"Does BQ25628RYKR support I²C programming?","answer":"Yes. The charge current, termination voltage, and safety timer are all programmable via the I²C interface. No external resistors are needed for the charge profile."},{"question":"Is BQ25628RYKR suitable for a 1S battery pack?","answer":"Yes. It is designed for single-cell (1S) Lithium Ion/Polymer packs, with a maximum battery pack voltage of 4.8V — the standard 4.2V or 4.35V cell termination fits within that ceiling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25628RYKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25628RYKR 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}}