{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7731FQDWQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7731FQDWQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO7731FQDWQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO7731FQDWQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7731FQDWQ1, Automotive AEC-Q100, 3-channel unidirectional digital isolator, 100 Mbps, 5000 Vrms, capacitive coupling, 2.25 V to 5.5 V supply, -40°C to 125°C, 16-SOIC.","salesMarkdown":"## Digital isolator for the automotive power train The Texas Instruments ISO7731FQDWQ1 is a three-channel, unidirectional digital isolator built on capacitive coupling technology, rated for 5000 Vrms isolation and a 100 Mbps data rate. It carries AEC-Q100 qualification, making it a fit for automotive battery-management systems, traction inverters, and on-board charger isolation barriers where galvanic separation between the high-voltage domain and the low-voltage control logic is required. ## 85 kV/µs CMTI — why it matters for motor drives and inverters Common-mode transient immunity of 85 kV/µs minimum holds output state during fast high-voltage switching edges. ## Propagation delay and pulse-width distortion Maximum propagation delay is 16 ns in both directions, and pulse-width distortion stays under 4.9 ns. ## Package and thermal routing Housed in a 16-pin SOIC wide-body (7.50 mm width), the package provides the creepage distance needed to sustain the 5000 Vrms rating across the barrier. The wide-body footprint is standard for reinforced isolation; the PCB layout should keep a clean slot or gap under the part to maintain the isolation spacing. No exposed thermal pad here — dissipation is modest for a digital isolator at 100 Mbps, but the wide-body still helps with thermal coupling to the board copper.","metaTitle":"ISO7731FQDWQ1 TI Automotive Digital Isolator, 100 Mbps","metaDescription":"ISO7731FQDWQ1 from Texas Instruments, AEC-Q100 qualified, 3-channel unidirectional digital isolator with 100 Mbps data rate and 5000 Vrms isolation.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"Automotive, AEC-Q100","Package":"Tube","Data Rate":"100Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2.25V ~ 5.5V","Number of Channels":"3","Base Product Number":"ISO7731","Voltage - Isolation":"5000Vrms","Operating Temperature":"-40°C~125°C","Inputs - Side 1/Side 2":"2/1","Rise / Fall Time (Typ)":"1.3ns, 1.4ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"4.9ns","Propagation Delay tpLH / tpHL (Max)":"16ns, 16ns","Common Mode Transient Immunity (Min)":"85kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6974","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2f73feb4c2e73dc02bea8ac0f45c1c0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ISO7731FQDWQ1 AEC-Q100 qualified?","answer":"Yes, the ISO7731FQDWQ1 carries AEC-Q100 qualification as part of the Automotive series, making it suitable for automotive-grade applications including under-hood and chassis-domain isolation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7731FQDWQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7731FQDWQ1 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}}