{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24155RGYR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24155RGYR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24155RGYR","factsUrl":"https://icboms.com/api/mcp/products/BQ24155RGYR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24155RGYR single-cell Li-Ion/Polymer battery charger, I²C programmable, 1.25 A max charge current, 6 V max input, 14-VQFN (3.5x3.5) package, -40°C to 85°C.","salesMarkdown":"## Single-cell Li-Ion charger with I²C programmability The Texas Instruments BQ24155RGYR is a single-cell Li-Ion or Li-Polymer battery charger with an I²C interface for programming charge current, voltage, and timer parameters. It targets portable devices, handheld instruments, and battery-backed systems where the charge profile must be adjusted in firmware rather than by resistor dividers. ## 1.25 A charge current in a 3.5x3.5 mm QFN The maximum charge current is 1.25 A, programmable via I²C. Input supply maximum is 6 V. Over-voltage and over-temperature fault protection is built in. No last-time-buy or end-of-life notification has been issued. The battery pack voltage ceiling is 4.44 V.","metaTitle":"BQ24155RGYR I²C Li-Ion Charger, 1.25 A, 14-VQFN","metaDescription":"Texas Instruments BQ24155RGYR single-cell Li-Ion/Polymer charger with I²C interface, 1.25 A max, 6 V input, -40°C to 85°C. Active lifecycle.","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":"14-VFQFN Exposed Pad","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24155","Battery Pack Voltage":"4.44V (Max)","Charge Current - Max":"1.25A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current, Timer, Voltage","Voltage - Supply (Max)":"6V","Supplier Device Package":"14-VQFN (3.5x3.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/382db9a19016c8fcfc84a44b0803270e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can BQ24155RGYR charge a 1S LiPo battery?","answer":"Yes, it is designed for single-cell (1S) Li-Ion and Li-Polymer batteries. The battery pack voltage maximum is 4.44 V, which covers the standard 4.2 V termination voltage."},{"question":"How do I program the charge current on BQ24155RGYR?","answer":"The charge current is programmed via the I²C interface. The device supports constant-current charging with programmable current, voltage, and timer settings through the I²C bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24155RGYR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24155RGYR 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}}