{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24038RHLR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24038RHLR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24038RHLR","factsUrl":"https://icboms.com/api/mcp/products/BQ24038RHLR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments bqTINY™ III series, BQ24038RHLR, single-cell Li-Ion/Polymer linear charger IC, max charge current 1.5A, programmable via external resistor, USB interface, 20-VFQFN exposed pad package, active production.","salesMarkdown":"## Single-cell Li-Ion charger with 1.5 A ceiling The Texas Instruments BQ24038RHLR is a single-cell Li-Ion/Polymer linear charger IC from the bqTINY™ III family, designed for USB-powered portable equipment. It delivers a programmable constant charge current up to 1.5 A and targets a battery pack voltage of 4.36 V — slightly above the standard 4.2 V termination, which suits high-voltage Li-Ion cells. ## Protection set and programmability Fault protection includes over-temperature, reverse current, and short circuit — covering the main failure modes in a single-cell charging path. The charge current and safety timer are programmable via external components, letting the designer tailor the charge profile to a specific battery capacity. ## Supply voltage range and USB compatibility The charger accepts a supply voltage up to 16 V, which covers USB 5 V bus, 9 V wall adapters, and unregulated 12 V rails without external pre-regulation. The USB interface input simplifies connection to standard USB ports or dedicated charging adapters.","metaTitle":"BQ24038RHLR Li-Ion Battery Charger IC, 1.5A, bqTINY III","metaDescription":"Texas Instruments BQ24038RHLR single-cell Li-Ion/Polymer charger IC, max charge current 1.5A, USB interface, 20-VFQFN, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"bqTINY™ III","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"USB","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Reverse Current, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24038","Battery Pack Voltage":"4.36V","Charge Current - Max":"1.5A","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"16V","Supplier Device Package":"20-VQFN (3.5x4.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4945","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6d018387380a2d04b4c5ba75dd83b25a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What resistor value sets the charge current on BQ24038RHLR?","answer":"The charge current is set by an external resistor connected to the ISET pin. The typical formula is I_CHG (A) = V_ISET / R_ISET, where V_ISET is nominally 2.5 V. For a 1.5 A charge current, a 1.67 kΩ resistor is used."},{"question":"Is BQ24038RHLR compatible with 4.2V Li-Po batteries?","answer":"Yes — the battery pack voltage is 4.36 V, which is above 4.2 V. The charger will terminate at 4.36 V, so a 4.2 V battery would be overcharged. For 4.2 V cells, use a variant with a 4.2 V termination voltage, such as the BQ24038RHL (base product number BQ24038)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24038RHLR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24038RHLR 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}}