{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO6740QDWRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO6740QDWRQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO6740QDWRQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO6740QDWRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO674x series, ISO6740QDWRQ1, automotive CAN digital isolator, 4-channel unidirectional, 50 Mbps data rate, 5000 Vrms isolation, capacitive coupling, 2.25 V to 5.5 V supply, 16-SOIC package, -40°C to 125°C, AEC-Q100 qualified.","salesMarkdown":"## Automotive CAN isolation with 5000 Vrms and 125°C rating The Texas Instruments ISO6740QDWRQ1 is a 4-channel unidirectional digital isolator using capacitive coupling, specifically listed with a CAN type designation for automotive CAN bus and CAN FD isolation applications. The 5000 Vrms isolation rating supports reinforced insulation requirements per automotive safety standards. ## 50 Mbps data rate and propagation delay budget With a 50 Mbps data rate and 18 ns max propagation delay (tpLH/tpHL), this isolator handles CAN FD at 5 Mbps with margin and supports general-purpose isolation links up to 50 Mbps. The 7 ns max pulse width distortion keeps the duty-cycle error tight for CAN bit-timing budgets. Rise/fall times of 2.6 ns typical mean the signal edges are clean enough for 50 Mbps without excessive ringing, but the PCB layout should keep trace lengths short to avoid reflections at these edge rates. ## 4/0 channel configuration and supply flexibility The channel arrangement is 4 inputs on side 1 and 0 inputs on side 2 — all four channels drive in the same direction, which fits a CAN transceiver isolation scheme where the MCU-side signals (TX, RX, standby, fault) all cross the barrier one way. Common-mode transient immunity of 100 kV/µs minimum ensures the data link stays intact during motor-drive switching events or battery disconnect transients. ## 16-SOIC package and surface-mount assembly The wide SOIC footprint provides the creepage distance needed to maintain the 5000 Vrms isolation rating across the PCB. No isolated power is integrated — the design needs separate isolated supplies on each side, which is standard for CAN isolation where the transceiver side often runs from a 5 V bus supply. The automotive qualification and active status make it a low-risk choice for production programs that need a documented AEC-Q100 isolator.","metaTitle":"TI ISO6740QDWRQ1 CAN Isolator, 50 Mbps, 5000 Vrms, AEC-Q100","metaDescription":"Texas Instruments ISO6740QDWRQ1 automotive CAN isolator: 50 Mbps data rate, 5000 Vrms isolation, 4 unidirectional channels, -40 to 125°C. AEC-Q100 qualified.","metaKeywords":null},"attributes":{"series":"ISO674x","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"CAN","Grade":"Automotive","Series":"ISO674x","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":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.25V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"5000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"4/0","Rise / Fall Time (Typ)":"2.6ns, 2.6ns","Supplier Device Package":"16-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":"$2.68","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.68000","currency":"USD"},{"qty":10,"price":"$2.41100","currency":"USD"},{"qty":25,"price":"$2.27920","currency":"USD"},{"qty":100,"price":"$1.97540","currency":"USD"},{"qty":250,"price":"$1.87412","currency":"USD"},{"qty":500,"price":"$1.68162","currency":"USD"},{"qty":1000,"price":"$1.41824","currency":"USD"},{"qty":2000,"price":"$1.21761","currency":"USD"},{"qty":6000,"price":"$1.17251","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dc361cd4cff2f80e801019f707fa628c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between ISO6740QDWRQ1 and ISO6741QDWRQ1?","answer":"The ISO6740QDWRQ1 has a 4/0 channel configuration (all four channels unidirectional from side 1 to side 2). The ISO6741QDWRQ1 has a 3/1 configuration (three channels forward, one reverse). Both share the same 50 Mbps data rate, 5000 Vrms isolation, AEC-Q100 qualification, and 16-SOIC package. The choice depends on whether the design needs a reverse channel for acknowledge or fault feedback across the isolation barrier."},{"question":"Can ISO6740QDWRQ1 replace a non-automotive isolator like ISO7240?","answer":"The ISO6740QDWRQ1 is not a direct pin-compatible replacement for the ISO7240. The ISO7240 is a 4-channel general-purpose isolator in a 16-SOIC package but with different pin assignments and no AEC-Q100 qualification. A board redesign would be needed to swap between them."},{"question":"What is ISO6740QDWRQ1's listed type and grade?","answer":"The listed type is CAN, indicating this isolator is characterized for CAN bus and CAN FD isolation applications. The grade is Automotive, and it carries AEC-Q100 qualification for automotive reliability requirements."},{"question":"Does ISO6740QDWRQ1 have a datasheet?","answer":"Yes. The Texas Instruments ISO6740QDWRQ1 datasheet is available from the manufacturer and includes full specifications for the ISO674x family, including timing diagrams, isolation voltage test methods, and application notes for CAN isolation designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO6740QDWRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO6740QDWRQ1 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}}