{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24735RGRR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24735RGRR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24735RGRR","factsUrl":"https://icboms.com/api/mcp/products/BQ24735RGRR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24735RGRR, multi-chemistry battery charger IC, I²C-controlled, 1-4 series cells, 16.8V pack voltage, 20-VQFN (3.5x3.5) package, -40°C to 85°C operation.","salesMarkdown":"## Multi-chemistry charger with I²C control The BQ24735RGRR is a multi-chemistry battery charger IC from Texas Instruments that handles 1 to 4 series cells with a maximum pack voltage of 16.8V. The I²C interface lets the system host set charge current, voltage thresholds, and termination parameters on the fly, which is useful when the same board must support Li-ion, Li-polymer, or LiFePO4 chemistries without hardware changes. ## Fault protection and supply range On-chip fault protection covers over-current, over-voltage, and short-circuit conditions — three failure modes that typically require external comparators or a supervisor IC. The maximum supply voltage is 24V, which gives headroom for a 19V adapter or a 24V industrial rail while still protecting the downstream battery. Because the charger is multi-chemistry, it does not hard-code a termination voltage for a specific cell type. The I²C registers hold the target voltage; the host firmware writes the correct value for the installed pack. This is the same approach used in many notebook and tablet designs where the battery type is not known until the pack is inserted. The part is ROHS3 compliant. For current availability and lead time, submit an RFQ against your BOM quantity — we source and quote to order.","metaTitle":"BQ24735RGRR I²C Multi-Chemistry Battery Charger IC","metaDescription":"BQ24735RGRR from Texas Instruments: multi-chemistry battery charger IC, 1-4 cells, I²C interface, 16.8V pack voltage, -40°C to 85°C operation, 20-VQFN package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","Number of Cells":"1 ~ 4","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Voltage, Short Circuit","Battery Chemistry":"Multi-Chemistry","Current - Charging":"-","Base Product Number":"BQ24735","Battery Pack Voltage":"16.8V","Charge Current - Max":"-","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"-","Voltage - Supply (Max)":"24V","Supplier Device Package":"20-VQFN (3.5x3.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.6700","priceTiers":[{"qty":1,"price":"$4.67000","currency":"USD"},{"qty":10,"price":"$4.19500","currency":"USD"},{"qty":25,"price":"$3.96640","currency":"USD"},{"qty":100,"price":"$3.43740","currency":"USD"},{"qty":250,"price":"$3.26116","currency":"USD"},{"qty":500,"price":"$2.92622","currency":"USD"},{"qty":1000,"price":"$2.49450","currency":"USD"},{"qty":3000,"price":"$2.49450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fb6f164668bdacbd34da807bb7e33459.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ24735RGRR/alternatives.json"},"ai":{"faq":[{"question":"Can BQ24735RGRR charge LiFePO4 batteries?","answer":"Yes, the BQ24735RGRR supports multi-chemistry charging including LiFePO4. The I²C interface allows the host to set the appropriate charge voltage (typically 3.6V per cell for LiFePO4) and termination current, so the same hardware can handle Li-ion, Li-polymer, or LiFePO4 packs by changing firmware parameters."},{"question":"Does BQ24735RGRR support I²C?","answer":"Yes, the BQ24735RGRR uses an I²C serial interface for host control of charge parameters. The bus allows the system microcontroller to read status registers and write charge current, voltage, and termination settings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24735RGRR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24735RGRR 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}}