{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7741FDBQ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7741FDBQ","canonicalUrl":"https://icboms.com/texas-instruments/ISO7741FDBQ","factsUrl":"https://icboms.com/api/mcp/products/ISO7741FDBQ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7741FDBQ, General Purpose digital isolator, Capacitive Coupling, 4-channel unidirectional, 100Mbps data rate, 2500Vrms isolation, 2.25V~5.5V supply, -55°C~125°C, 16-SSOP package.","salesMarkdown":"The Texas Instruments ISO7741FDBQ is a 4-channel, unidirectional digital isolator using capacitive coupling technology, rated for 2500 Vrms isolation and 100 Mbps data rate. It operates across a wide supply range of 2.25 V to 5.5 V on both sides, making it suitable for mixed-voltage domain isolation in industrial fieldbus interfaces, motor-drive feedback paths, and isolated SPI/UART links. The 100 Mbps data rate supports full-speed CAN FD, RS-485, and SPI clock lines without adding propagation delay margin pressure. With a maximum propagation delay of 16 ns and pulse-width distortion of 4.9 ns, the part maintains signal integrity for high-speed serial links where timing budget is tight. The 85 kV/µs common-mode transient immunity is the figure that matters in motor-drive and inverter environments: fast-switching SiC/GaN stages can couple several kV/µs across the isolation barrier, and this part's CMTI rating keeps the output from glitching. The 2.4 ns rise/fall times are fast enough for 100 Mbps but not so aggressive that they cause excessive EMI on a poorly laid-out board. ## Supply range and channel configuration The 3/1 input-side/side-2 split is a common pattern: three channels running from the low-voltage domain to the isolated side, one channel returning for a status or acknowledge signal. No isolated power is provided on-chip — the part is a signal isolator only, so each side needs its own local supply rail. ## Package, footprint, and reflow considerations The tube shipping medium is typical for prototype and low-volume builds; for production reels the part is also available in tape-and-reel variants under the same base number. Surface-mount assembly with a typical lead-free reflow profile works — no exotic pad geometry or via-in-pad required.","metaTitle":"TI ISO7741FDBQ General Purpose Isolator, 100Mbps, 2500Vrms","metaDescription":"TI ISO7741FDBQ capacitive-coupling digital isolator: 4 channels, 100Mbps, 2500Vrms isolation, 2.25V-5.5V supply, -55°C to 125°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"-","Package":"Tube","Data Rate":"100Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2.25V ~ 5.5V","Number of Channels":"4","Base Product Number":"ISO7741","Voltage - Isolation":"2500Vrms","Operating Temperature":"-55°C~125°C","Inputs - Side 1/Side 2":"3/1","Rise / Fall Time (Typ)":"2.4ns, 2.4ns","Supplier Device Package":"16-SSOP","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":"$3.8100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7d3b9b841350035d4a0188e814624994.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum data rate of ISO7741FDBQ?","answer":"The maximum data rate is 100 Mbps, with a maximum propagation delay of 16 ns and pulse-width distortion of 4.9 ns, suitable for high-speed interfaces like SPI and CAN FD."},{"question":"Is ISO7741FDBQ unidirectional or bidirectional?","answer":"The ISO7741FDBQ is unidirectional, with a 3/1 input-to-output channel split. It is not a bidirectional isolator; each channel's direction is fixed at the factory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7741FDBQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7741FDBQ 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}}