{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO6721FBQDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO6721FBQDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO6721FBQDRQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO6721FBQDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO6721FBQDRQ1, Functional Safety (FuSa) series, dual-channel unidirectional digital isolator, 50Mbps data rate, 3000Vrms isolation, capacitive coupling, 8-SOIC package, AEC-Q100 automotive grade, -40°C to 125°C.","salesMarkdown":"## AEC-Q100 digital isolator for safety-rated automotive signal chains It provides 3000Vrms galvanic isolation between two supply domains while passing data at up to 50Mbps with 2.6ns typical rise/fall times and 18ns max propagation delay. ## 3000Vrms isolation with 100kV/µs CMTI — what it means for motor-drive and inverter designs The 3000Vrms isolation voltage is the reinforced rating for basic isolation in 400V-class automotive traction inverters and DC-DC converters. The common-mode transient immunity of 100kV/µs minimum is the spec that matters in a motor-drive environment: fast-switching SiC or IGBT stages produce dV/dt edges that can couple across a capacitive isolation barrier and corrupt the logic state. At 100kV/µs this isolator holds its output state through those transients without bit errors — the same reason you see this part in gate-driver feedback paths and resolver-to-digital interfaces where the controller side must stay clean. ## Dual-supply architecture and unidirectional channels The ISO6721FBQDRQ1 has two unidirectional channels with one input on side 1 and one on side 2, giving one forward and one reverse path in a single package — enough for a full-duplex SPI or UART isolation link. The supply range is split: 1.71V to 1.89V on one side and 2.25V to 5.5V on the other, allowing direct interface to a 1.8V MCU domain on the low-voltage side while the isolated side runs at 3.3V or 5V for a sensor or actuator bus. No isolated DC-DC converter is integrated, so a separate isolated power supply is needed for the secondary side — typical in designs where the isolation transformer for the bias rail is already present. ## Functional Safety (FuSa) series and AEC-Q100 qualification Listed as part of the Functional Safety (FuSa) series, this isolator is intended for use in safety-related automotive systems developed to ISO 26262. The AEC-Q100 qualification confirms the part has passed the automotive-grade reliability stress tests — extended temperature cycling, high-temperature operating life, and moisture sensitivity — that are mandatory for production vehicle programs. The lifecycle status is Active, meaning TI continues to manufacture and support the part for new designs. ## Package and footprint: 8-SOIC Supplied in an 8-SOIC package with a 3.90mm body width and surface-mount footprint. Standard SOIC-8 land pattern applies; no exposed thermal pad to route. ## Sourcing reality for this automotive isolator The ISO6721FBQDRQ1 is an active, current-production automotive-grade isolator from TI.","metaTitle":"TI ISO6721FBQDRQ1 Digital Isolator, 3000Vrms, 50Mbps","metaDescription":"TI ISO6721FBQDRQ1 general-purpose digital isolator with capacitive coupling, 3000Vrms isolation, 50Mbps data rate, AEC-Q100 qualified for automotive.","metaKeywords":null},"attributes":{"series":"Functional Safety (FuSa)","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Grade":"Automotive","Series":"Functional Safety (FuSa)","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"50Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Isolated Power":"No","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.71V ~ 1.89V, 2.25V ~ 5.5V","Number of Channels":"2","Voltage - Isolation":"3000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"1/1","Rise / Fall Time (Typ)":"2.6ns, 2.6ns","Supplier Device Package":"8-SOIC","Pulse Width Distortion (Max)":"7ns","Propagation Delay tpLH / tpHL (Max)":"18ns, 18ns","Common Mode Transient Immunity (Min)":"100kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.72","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.72000","currency":"USD"},{"qty":10,"price":"$1.54700","currency":"USD"},{"qty":25,"price":"$1.45960","currency":"USD"},{"qty":100,"price":"$1.24350","currency":"USD"},{"qty":250,"price":"$1.16756","currency":"USD"},{"qty":500,"price":"$1.02162","currency":"USD"},{"qty":1000,"price":"$0.84648","currency":"USD"},{"qty":3000,"price":"$0.71584","currency":"USD"},{"qty":6000,"price":"$0.68933","currency":"USD"},{"qty":15000,"price":"$0.66281","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6b14962236177a55af24106b762bc4c4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ISO6721FBQDRQ1 AEC-Q100 qualified?","answer":"Yes, the ISO6721FBQDRQ1 is AEC-Q100 qualified, confirming it has passed automotive-grade reliability testing for use in production vehicle programs."},{"question":"Does ISO6721FBQDRQ1 support functional safety (FuSa)?","answer":"Yes, the ISO6721FBQDRQ1 is part of TI's Functional Safety (FuSa) series, designed to support development of safety-related automotive systems per ISO 26262."},{"question":"What is the data rate of ISO6721FBQDRQ1?","answer":"The ISO6721FBQDRQ1 supports a data rate of 50Mbps, with typical rise/fall times of 2.6ns and maximum propagation delay of 18ns."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO6721FBQDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO6721FBQDRQ1 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}}