{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25040DQCR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25040DQCR","canonicalUrl":"https://icboms.com/texas-instruments/BQ25040DQCR","factsUrl":"https://icboms.com/api/mcp/products/BQ25040DQCR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25040DQCR single-cell Li-Ion linear charger IC, 1.1 A max charge current, 4.2 V battery regulation, 10-WSON (3x2) package, Tape & Reel.","salesMarkdown":"## Single-cell Li-Ion linear charger in a 3x2 WSON The BQ25040DQCR is a single-cell lithium-ion linear charger IC from Texas Instruments, designed for space-constrained portable equipment where a small footprint and low BOM count matter more than fast charge times. It delivers a programmable constant charge current up to 1.1 A, regulating the battery voltage to 4.2 V from a supply rail as high as 6.7 V. The 10-WFDFN exposed-pad package (3x2 mm body, 10-WSON supplier device package) keeps the thermal path short — the pad under the IC carries the heat from the pass transistor into the PCB copper, so the layout engineer should stitch vias under the pad to a ground plane for the full 1.1 A output without hitting the thermal shutdown threshold. ## Charge current and protection thresholds Charging current is constant and programmable via an external resistor — the 1.1 A max figure is the ceiling, but the actual set-point is chosen by the resistor value, so the BOM cost engineer can dial in a lower current (e.g. 500 mA) to use a smaller inductor-free path and reduce the thermal budget. On-chip fault protection covers over-temperature (with a junction-temperature monitor that throttles or shuts down the charger) and over-voltage on the input supply — no external supervisor needed for these two failure modes.","metaTitle":"BQ25040DQCR Texas Instruments Li-Ion Charger, 1.1A, 10-WSON","metaDescription":"Texas Instruments BQ25040DQCR single-cell Li-Ion charger IC. Active production. 1.1A max charge current, 6.7V supply max, 10-WSON package. Sourced to order.","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":"-","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Base Product Number":"BQ25040","Battery Pack Voltage":"4.2V","Charge Current - Max":"1.1A","Operating Temperature":"0°C~125°C(TJ)","Programmable Features":"-","Voltage - Supply (Max)":"6.7V","Supplier Device Package":"10-WSON (3x2)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7620","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0a651c513a993cbda02d6f7e9d436035.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ25040DQCR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum charge current for BQ25040DQCR?","answer":"The maximum programmable charge current is 1.1 A, with the battery regulation voltage set to 4.2 V for a single Li-Ion cell. The actual current is set by an external resistor."},{"question":"What package does BQ25040DQCR use?","answer":"It comes in a 10-WFDFN exposed-pad package (10-WSON, 3x2 mm body), supplied on Tape & Reel or Cut Tape. Mounting is surface-mount only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25040DQCR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25040DQCR 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}}