{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24730RGFR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24730RGFR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24730RGFR","factsUrl":"https://icboms.com/api/mcp/products/BQ24730RGFR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24730RGFR multi-chemistry battery charger IC, 3-4 cells, 16.8V pack voltage, programmable charge current, fault protection, industrial temp -40°C to 85°C, 40-VFQFN (7x5 mm).","salesMarkdown":"The BQ24730RGFR carries an Obsolete lifecycle status — Texas Instruments no longer manufactures this part. ## 3-4 cell multi-chemistry charger — what the ratings mean The BQ24730RGFR is a multi-chemistry battery charger IC from Texas Instruments, designed for 3-4 series cells with a battery pack voltage of 16.8V — the standard ceiling for a 4-cell Li-ion stack. Charge current is constant and programmable via an external resistor, giving the designer control over the charge profile without firmware overhead. Maximum supply voltage is 24V, which accommodates common 19V laptop adapters and 24V industrial rails. Fault protection covers overcurrent and reverse battery conditions — a safety net that eliminates external comparators or fuses on the pack input. ## Industrial temperature grade and QFN footprint The 40-VFQFN with exposed pad (7x5 mm) requires a thermal pad on the PCB for heat sinking — the copper area under the pad sets the junction-to-ambient thermal resistance. Surface-mount assembly; the exposed pad also serves as the ground return for the power stage.","metaTitle":"Texas Instruments BQ24730RGFR Battery Charger IC, 3-4 Cell","metaDescription":"TI BQ24730RGFR multi-chemistry battery charger IC, 3-4 cells, 16.8V pack, industrial temp -40°C to 85°C, 40-VQFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"40-VFQFN Exposed Pad","Product Status":"Obsolete","Number of Cells":"3 ~ 4","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Reverse Battery","Battery Chemistry":"Multi-Chemistry","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24730","Battery Pack Voltage":"16.8V","Charge Current - Max":"-","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current","Voltage - Supply (Max)":"24V","Supplier Device Package":"40-VQFN (7x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.8700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/262e5e1069c439a91d547df2cc52b2a7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the BQ24730RGFR compatible with 4-cell lithium batteries?","answer":"Yes — the part supports 3 to 4 cells with a battery pack voltage of 16.8V, which is the nominal full-charge voltage for a 4-cell Li-ion or Li-polymer stack. The multi-chemistry charging engine also handles LiFePO4 and other chemistries with the appropriate cell-count programming."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24730RGFR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24730RGFR 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}}