{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7731QDWRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7731QDWRQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO7731QDWRQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO7731QDWRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7731QDWRQ1, Automotive AEC-Q100 digital isolator, 3-channel unidirectional, capacitive coupling, 100Mbps data rate, 5000Vrms isolation, 2.25V to 5.5V supply, 16-SOIC, -40°C to 125°C.","salesMarkdown":"## AEC-Q100 qualified digital isolator for automotive signal chains It provides 5000Vrms galvanic isolation across a 2.25V to 5.5V supply range on both sides, with a data rate of 100Mbps and typical rise/fall times of 1.3ns and 1.4ns. ## 5000Vrms isolation with 85kV/µs CMTI — what it means for motor-drive and inverter designs The 5000Vrms isolation voltage meets the reinforced insulation requirements for 600V/800V traction systems, while the common-mode transient immunity of 85kV/µs minimum ensures data integrity during fast-switching events from SiC or GaN power stages. In a motor-drive application, that CMTI headroom keeps the output from toggling on a 10kV/µs bus-voltage transient — a common failure point with lower-rated isolators. Propagation delay is symmetrical at 16ns max for both low-to-high and high-to-low transitions, with pulse-width distortion held to 4.9ns maximum, so timing margins stay predictable across temperature. ## 2.25V to 5.5V supply — dual-voltage domain bridging without level shifters The supply range of 2.25V to 5.5V on each side means the ISO7731QDWRQ1 can directly interface a 3.3V microcontroller on side 1 with a 5V peripheral on side 2, or any combination within the range, without external level translation. The channel configuration is 2 inputs on side 1 and 1 input on side 2, which suits isolating two forward signals and one reverse feedback path — for example, two PWM drive signals going into a gate-driver and one fault flag coming back. No last-time-buy or end-of-life notice has been issued. For production programs already in ramp, this removes the supply-chain risk of an unplanned redesign.","metaTitle":"TI ISO7731QDWRQ1 Digital Isolator, 3-Ch, 5000Vrms, AEC-Q100","metaDescription":"Texas Instruments ISO7731QDWRQ1 automotive digital isolator: 3 unidirectional channels, 5000Vrms isolation, 100Mbps data rate, -40°C to 125°C.","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":"Tape & Reel (TR); Cut Tape (CT)","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":"$3.1600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d90a4d62e61a8af98bf9544de9b238cd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ISO7731QDWRQ1 compatible with 3.3V logic?","answer":"Yes. The supply voltage range of 2.25V to 5.5V on each side means the device can operate at 3.3V on both sides or at mixed 3.3V/5V levels without external level shifters. Logic thresholds scale with the supply on each side."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7731QDWRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7731QDWRQ1 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}}