{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24704RGET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24704RGET","canonicalUrl":"https://icboms.com/texas-instruments/BQ24704RGET","factsUrl":"https://icboms.com/api/mcp/products/BQ24704RGET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24704RGET, Li-Ion/Polymer battery charger IC, 2-4 cells, 8A max charge current, constant programmable current, fault protection, 24-VFQFN Exposed Pad, -40°C to 125°C junction temperature.","salesMarkdown":"## 8A charge current for multi-cell Li-Ion packs The Texas Instruments BQ24704RGET is a Li-Ion/Polymer battery charger IC designed for 2 to 4 series cells, delivering a programmable constant charge current up to 8A max. It handles battery pack voltages up to 18V from a supply rail rated to 24V. This part sits in the BQ24704 family and comes in a 24-VFQFN Exposed Pad package (4x4 mm, 0.50 mm pitch). The 8A max charge current sets the power stage sizing: the external MOSFET, inductor, and sense resistor must handle the peak current without saturating or overheating. The 2-4 cell range means the charger regulates the battery voltage to 18V max — a 4-cell Li-Ion pack at 4.2V/cell hits 16.8V, leaving headroom. The constant-current programmable feature lets you set the charge rate via an external resistor or DAC, which is useful for adjusting charge time vs. battery cycle life. Fault protection covers over-current, over-temperature, and over-voltage — these are integrated, so you don't need external comparators or supervisor ICs for basic protection. ## Reworking the 24-VFQFN: what to expect at the bench The 24-VFQFN Exposed Pad (4x4 mm) is a common QFN package. Under a hot-air station, the pad wicks heat quickly; preheat the board to 100-120°C before reflow to avoid lifting the pad. The 0.50 mm pitch is fine enough that a misaligned part can short adjacent pins, so use a flux-rich rework profile and a good pair of tweezers. Orientation is marked by pin 1 indicator on the package corner — verify it before placement.","metaTitle":"BQ24704RGET Li-Ion Battery Charger IC, 8A Max, 2-4 Cells","metaDescription":"Texas Instruments BQ24704RGET Li-Ion/Polymer battery charger, 8A max charge current, 2-4 cells, 24-VFQFN, -40°C to 125°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":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"-","Mounting Type":"Surface Mount","Package / Case":"24-VFQFN Exposed Pad","Product Status":"Active","Number of Cells":"2 ~ 4","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24704","Battery Pack Voltage":"18V (Max)","Charge Current - Max":"8A","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"-","Voltage - Supply (Max)":"24V","Supplier Device Package":"24-VQFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.4478","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a561bad2e347f6f0594b27b07cff7e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use BQ24704RGET for a 2-cell battery pack?","answer":"Yes. The BQ24704RGET supports 2 to 4 series cells. For a 2-cell Li-Ion pack (8.4V full charge), the charger regulates the battery voltage within its 18V max rating, and the 8A max charge current provides headroom for fast charging."},{"question":"What is the difference between BQ24704RGET and BQ24703RGET?","answer":"The BQ24704RGET and BQ24703RGET are sibling parts in the same charger family. The key difference is the number of supported cells: the BQ24704 handles 2-4 cells, while the BQ24703 is typically specified for different cell counts. Pin compatibility should be verified against the respective datasheets before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24704RGET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24704RGET 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}}