{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25619RTWT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25619RTWT","canonicalUrl":"https://icboms.com/texas-instruments/BQ25619RTWT","factsUrl":"https://icboms.com/api/mcp/products/BQ25619RTWT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25619RTWT, single-cell Li-Ion/Polymer battery charger, I²C and USB interface, 1A max charge current, 4.52V max battery pack voltage, 24-WFQFN exposed pad package, -40°C to 85°C operating temperature.","salesMarkdown":"## Single-cell Li-Ion charger with I²C and USB The Texas Instruments BQ25619RTWT is a single-cell Li-Ion/Polymer battery charger IC with an I²C and USB interface, designed for portable and battery-powered equipment. It delivers a programmable constant charge current up to 1A and supports a maximum battery pack voltage of 4.52V. The device integrates fault protection for over current, over temperature, and over voltage conditions, making it suitable for applications where safe charging is critical. ## Charge current and thermal budget The 1A maximum charge current is programmable via the I²C interface, along with charge timer and voltage settings. ## Protection features for single-cell designs The BQ25619RTWT includes over current, over temperature, and over voltage fault protection. For a single-cell Li-Ion/Polymer battery, the over voltage threshold at 4.52V protects against overcharge, while the over temperature protection shuts down charging if the die exceeds safe limits — important in compact enclosures where thermal coupling to the battery is tight.","metaTitle":"BQ25619RTWT Battery Charger IC, I²C/USB, 1A, 24-WFQFN","metaDescription":"Texas Instruments BQ25619RTWT single-cell Li-Ion/Polymer charger with I²C and USB interface. 1A max charge current, 4.52V battery pack voltage.","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, USB","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":"BQ25619","Battery Pack Voltage":"4.52V (Max)","Charge Current - Max":"1A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current, Timer, Voltage","Voltage - Supply (Max)":"13.5V","Supplier Device Package":"24-WQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/06ca474634129c6b5d2da221ca94470b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the charging current of BQ25619RTWT?","answer":"The maximum charge current is 1A, and it is programmable via the I²C interface along with charge timer and voltage settings."},{"question":"What interface does BQ25619RTWT use?","answer":"The BQ25619RTWT uses an I²C interface for communication and also supports USB input for charging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25619RTWT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25619RTWT 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}}