{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24190RGER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24190RGER","canonicalUrl":"https://icboms.com/texas-instruments/BQ24190RGER","factsUrl":"https://icboms.com/api/mcp/products/BQ24190RGER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24190RGER, single-cell Li-Ion/Polymer battery charger IC, 4.5A max charge current, 17V supply max, I²C interface, 24-VFQFN Exposed Pad package, -40°C to 85°C operation.","salesMarkdown":"## 4.5A single-cell charger with I²C programmability The I²C interface lets firmware set the charge current, termination threshold, and timer limits — a step up from fixed-function chargers that require resistor dividers for each parameter. It integrates over-current, over-temperature, and over-voltage protection on-die, so the external BOM stays lean: no separate protection supervisor needed for most designs. ## 17V input — USB PD and adapter tolerant The 17V maximum supply voltage covers USB-C Power Delivery profiles up to 15V, plus common wall adapters. The input OVP threshold is set internally, so a 15V adapter or a hot-plug transient won't blow the charger. ## I²C-controlled charge profile Charge current is constant-current programmable via I²C, not a fixed resistor. That means the same PCB can support different cell capacities by changing a firmware register. ## 24-VQFN (4x4) with exposed pad — thermal management The 24-VQFN package measures 4x4 mm with an exposed thermal pad. The datasheet's recommended layout uses a 2x2 via array under the pad — skip that and the charger will current-fold long before hitting 4.5A in a warm enclosure. The base product number BQ24190 covers multiple package and tape variants; the RGER suffix is the 24-VQFN on Tape & Reel.","metaTitle":"TI BQ24190RGER Li-Ion Battery Charger IC, 4.5A, I²C","metaDescription":"Texas Instruments BQ24190RGER single-cell Li-Ion/Polymer charger IC. 4.5A max charge current, 17V input, I²C programmable, 24-VQFN.","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":"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":"BQ24190","Battery Pack Voltage":"4.2V","Charge Current - Max":"4.5A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"-","Voltage - Supply (Max)":"17V","Supplier Device Package":"24-VQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.2700","priceTiers":[{"qty":1,"price":"$4.27000","currency":"USD"},{"qty":10,"price":"$3.83500","currency":"USD"},{"qty":25,"price":"$3.62520","currency":"USD"},{"qty":100,"price":"$3.14180","currency":"USD"},{"qty":250,"price":"$2.98072","currency":"USD"},{"qty":500,"price":"$2.67460","currency":"USD"},{"qty":1000,"price":"$2.28000","currency":"USD"},{"qty":3000,"price":"$2.28000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f40bb46de0a078d774c39635b60ff825.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ24190RGER/alternatives.json"},"ai":{"faq":[{"question":"Can I replace BQ24190RGER with BQ24192?","answer":"The BQ24192 is a pin-compatible sibling in the same family with a higher 4.5A charge current rating and additional OTG boost mode. If your design does not need the boost regulator or the higher current, the BQ24190RGER is the cost-optimized choice. Both share the same 24-VQFN footprint and I²C register map, so a swap requires only a firmware check on the OTG enable bit."},{"question":"Does BQ24190RGER require an external MOSFET?","answer":"No — the BQ24190RGER integrates the power FETs for the charger buck converter. No external MOSFET is needed for the charging path. An external input OVP FET is optional if the supply can exceed 17V."},{"question":"Is BQ24190RGER compatible with 2-cell batteries?","answer":"No — the BQ24190RGER is designed for single-cell Li-Ion/Polymer batteries with a 4.2V pack voltage. It does not support 2-series (8.4V) battery packs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24190RGER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24190RGER 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}}