{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24073RGTTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24073RGTTG4","canonicalUrl":"https://icboms.com/texas-instruments/BQ24073RGTTG4","factsUrl":"https://icboms.com/api/mcp/products/BQ24073RGTTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24073RGTTG4, single-cell Li-Ion battery charger IC, USB interface, 1.5A max charge current, programmable current and timer, 16-VQFN (3x3) package, -40°C to 125°C operating junction temperature.","salesMarkdown":"## Single-cell Li-Ion charger with USB input and 1.5 A ceiling The BQ24073RGTTG4 from Texas Instruments is a linear single-cell Li-Ion battery charger IC designed to draw power from a USB port. It delivers a programmable constant charge current up to 1.5 A, with the charge voltage regulated to 4.2 V for the battery pack. The device integrates fault protection against over-temperature, over-voltage, reverse current, and short circuit, reducing the need for external monitoring components. ## Charge current and thermal budget at 1.5 A At the 1.5 A maximum charge current, the linear regulator dissipates power as heat equal to (VIN - VBAT) × ICHG. The programmable timer and current features let the designer set the charge profile without external resistors on the ISET pin — a single resistor from the ISET pin to GND sets the charge current, and the timer pin sets the safety timeout. The 16-VFQFN exposed-pad package requires a thermal pad on the PCB for proper heat sinking.","metaTitle":"BQ24073RGTTG4 Li-Ion Battery Charger IC, 1.5A, USB, 16-VQFN","metaDescription":"Texas Instruments BQ24073RGTTG4 single-cell Li-Ion charger IC, 1.5A max charge current, USB interface, -40°C to 125°C, 16-VQFN.","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)","Interface":"USB","Mounting Type":"Surface Mount","Package / Case":"16-VFQFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage, Reverse Current, Short Circuit","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24073","Battery Pack Voltage":"4.2V","Charge Current - Max":"1.5A","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"6.4V","Supplier Device Package":"16-VQFN (3x3)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bb651bedfc30399e6c9f506764c3f534.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current for BQ24073RGTTG4?","answer":"The maximum charge current is 1.5 A, programmable via an external resistor on the ISET pin."},{"question":"Is BQ24073RGTTG4 compatible with 4.2V Li-ion batteries?","answer":"Yes, the battery pack voltage is regulated to 4.2 V, matching standard single-cell Li-ion and Li-polymer cells."},{"question":"What is the exact function of BQ24073RGTTG4?","answer":"It is a single-cell Li-Ion battery charger IC with a USB interface, providing constant-current / constant-voltage charging up to 1.5 A with programmable current and timer, plus comprehensive fault protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24073RGTTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24073RGTTG4 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}}