{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO6721BQDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO6721BQDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO6721BQDRQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO6721BQDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO6721BQDRQ1, Automotive AEC-Q100, General Purpose digital isolator, 2-channel unidirectional, capacitive coupling, 50 Mbps, 3000 Vrms isolation, 100 kV/µs CMTI, 18 ns prop delay, 8-SOIC, -40°C to 125°C.","salesMarkdown":"## 50 Mbps capacitive isolator for automotive signal chains The Texas Instruments ISO6721BQDRQ1 is a two-channel, unidirectional digital isolator using capacitive coupling technology, rated for 3000 Vrms isolation and 50 Mbps data rate. It belongs to the Automotive, AEC-Q100, Functional Safety (FuSa) series, qualified for deployment in safety-rated automotive systems such as battery management, traction inverter gate-drive interfaces, and CAN/SPI isolation barriers. The part supports a dual-supply range of 1.71V to 1.89V on one side and 2.25V to 5.5V on the other, allowing direct interface between 1.8V, 3.3V, and 5V logic domains without external level translation. ## 100 kV/µs CMTI — what it means for motor-drive and inverter designs Common-mode transient immunity of 100 kV/µs minimum is the key parameter for maintaining data integrity in high-side gate-drive or phase-voltage sensing applications where fast-switching SiC or IGBT stages produce dv/dt events exceeding 50 kV/µs. A part with lower CMTI would corrupt the output under those edges, causing spurious faults or desaturation detections. This rating, combined with 18 ns propagation delay and 2.6 ns rise/fall times, keeps the isolation link transparent to the control loop timing budget. ## Package, supply, and temperature grade for BOM fit The dual-supply architecture means each side of the isolation barrier can run at a different voltage — for example, a 3.3 V MCU domain on side 1 and a 5 V sensor interface on side 2 — without needing a separate level shifter IC. ## Lifecycle and sourcing posture For volume production, qualifying a second source within the same functional safety grade is advisable to avoid sole-source exposure on the isolation barrier.","metaTitle":"TI ISO6721BQDRQ1 digital isolator, 50 Mbps, 3000 Vrms","metaDescription":"Texas Instruments ISO6721BQDRQ1 automotive digital isolator: 50 Mbps data rate, 3000 Vrms isolation, 100 kV/µs CMTI, -40°C to 125°C, AEC-Q100.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, Functional Safety (FuSa)","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"Automotive, AEC-Q100, Functional Safety (FuSa)","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"50Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","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":"$1.81","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.81000","currency":"USD"},{"qty":10,"price":"$1.62400","currency":"USD"},{"qty":25,"price":"$1.53160","currency":"USD"},{"qty":100,"price":"$1.30500","currency":"USD"},{"qty":250,"price":"$1.22536","currency":"USD"},{"qty":500,"price":"$1.07220","currency":"USD"},{"qty":1000,"price":"$0.88839","currency":"USD"},{"qty":3000,"price":"$0.86700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6b14962236177a55af24106b762bc4c4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the alternatives to ISO6721BQDRQ1?","answer":"Within the same TI ISO6721 family, pin-compatible variants with different channel counts or directionality exist, but no direct second-source from another manufacturer is listed. For dual-sourcing, evaluate functionally equivalent automotive-grade capacitive isolators from competitors that meet 3000 Vrms, 50 Mbps, and 100 kV/µs CMTI in an SOIC-8 footprint."},{"question":"Is ISO6721BQDRQ1 compatible with 3.3V logic?","answer":"Yes. The supply range on side 1 is 1.71V to 1.89V, and side 2 accepts 2.25V to 5.5V. For a 3.3V logic interface, connect the side 2 supply to 3.3V. The 1.8V side can connect to a 1.8V MCU or FPGA bank directly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO6721BQDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO6721BQDRQ1 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}}