{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24105IRHLRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24105IRHLRQ1","canonicalUrl":"https://icboms.com/texas-instruments/BQ24105IRHLRQ1","factsUrl":"https://icboms.com/api/mcp/products/BQ24105IRHLRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24105IRHLRQ1, Automotive AEC-Q100 bqSWITCHER™, Li-Ion/Li-Pol battery charger IC, 1-3 cells, 2A max charge current, 12.6V pack voltage, 20-VFQFN Exposed Pad package.","salesMarkdown":"## Automotive AEC-Q100 Li-Ion charger — 2 A, 12.6 V pack ceiling The Texas Instruments BQ24105IRHLRQ1 is an automotive-grade (AEC-Q100) synchronous buck Li-Ion/Li-Polymer charger from the bqSWITCHER™ family. It handles 1 to 3 series cells, with a programmable charge current up to 2 A and a battery regulation voltage of 12.6 V — that's the 3-cell ceiling. The 16 V maximum supply input gives headroom for 12 V rails in automotive or industrial systems without an external pre-regulator. Protection is built in: over-temperature and over-voltage fault shutdown. The programmable features — charge current and safety timer — let you tune the charging profile without changing the bill of materials. ## 2 A charge current — thermal and layout reality The 2 A max charge current is a constant-current programmable limit, not a peak transient. The datasheet's recommended copper area on the top layer is the starting point — skimping on thermal vias pushes the die above 85°C and the charger throttles back via its internal thermal regulation loop.","metaTitle":"BQ24105IRHLRQ1 Automotive Li-Ion Charger, 2A, 12.6V Pack","metaDescription":"Texas Instruments BQ24105IRHLRQ1 automotive AEC-Q100 Li-Ion/Li-Pol charger. 2A max charge current, 12.6V pack voltage, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100, bqSWITCHER™","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"-","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","Number of Cells":"1 ~ 3","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24105","Battery Pack Voltage":"12.6V","Charge Current - Max":"2A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"16V","Supplier Device Package":"20-VQFN (3.5x4.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.0000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dc27427b41813bae38ccb23e04bfafd5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What battery chemistries and cell counts does BQ24105IRHLRQ1 support?","answer":"It supports Lithium Ion and Lithium Polymer chemistries, and can charge 1 to 3 series cells. The battery pack voltage is regulated at 12.6 V, which corresponds to a 3-cell stack (4.2 V per cell)."},{"question":"What is the maximum charge current for BQ24105IRHLRQ1?","answer":"The maximum programmable charge current is 2 A. It is a constant-current limit set by an external sense resistor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24105IRHLRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24105IRHLRQ1 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}}