{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24297RGER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24297RGER","canonicalUrl":"https://icboms.com/texas-instruments/BQ24297RGER","factsUrl":"https://icboms.com/api/mcp/products/BQ24297RGER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24297RGER, single-cell Li-Ion/Li-Polymer battery charger, I²C interface, 3A max charge current, 4.2V battery pack voltage, 24-VFQFN Exposed Pad package, -40°C to 85°C operating temperature.","salesMarkdown":"## Single-cell Li-Ion charger with I²C control The Texas Instruments BQ24297RGER is a single-cell Lithium Ion/Polymer battery charger that uses an I²C interface for charge parameter programming and status monitoring. It delivers a programmable constant charge current up to 3 A, with a fixed 4.2 V battery regulation voltage. ## Charge current and thermal budget The 3 A maximum charge current is the ceiling for a single-cell Li-Ion pack — the actual charge rate is set via I²C registers, so the same BOM can support different cell capacities by adjusting the current limit in firmware. ## Fault protection and operating range Integrated over-current, over-temperature, and over-voltage fault protection means the charger can handle a shorted output or a hot environment without external supervisory ICs.","metaTitle":"BQ24297RGER I²C Li-Ion Charger, 3A Max, 24-VQFN","metaDescription":"Texas Instruments BQ24297RGER single-cell Li-Ion/Li-Pol charger with I²C interface, 3A max charge current, -40°C to 85°C range.","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-VFQFN 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":"BQ24297","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-VQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.0400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ab8d5689907da7733e74e969075a6ad0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current for BQ24297RGER?","answer":"The maximum charge current is 3 A, programmable via the I²C interface. The actual charge rate is set in firmware, so the same part can serve different cell capacities by adjusting the current limit."},{"question":"Does BQ24297RGER require an external microcontroller for I2C control?","answer":"Yes — the I²C interface requires an external host microcontroller to write the charge current, termination current, and other configuration registers. Without an I²C master, the charger operates at its default settings, which may not match the battery pack."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24297RGER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24297RGER 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}}