{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7741FDWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7741FDWR","canonicalUrl":"https://icboms.com/texas-instruments/ISO7741FDWR","factsUrl":"https://icboms.com/api/mcp/products/ISO7741FDWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7741FDWR, General Purpose digital isolator, Capacitive Coupling, 4-channel unidirectional, 100Mbps data rate, 5000Vrms isolation, 2.25V~5.5V supply, −55°C~125°C, 16-SOIC package.","salesMarkdown":"## 5000 Vrms reinforced isolation — the headline rating The TI ISO7741FDWR is a 4-channel, unidirectional digital isolator using capacitive coupling to pass signals across a reinforced isolation barrier rated at 5000 Vrms. That isolation voltage is the primary spec that decides fit: it qualifies the part for medical equipment (patient-contact isolation), motor-drive interfaces, and industrial fieldbus where the safety standard demands reinforced insulation rather than basic. ## 100 Mbps data rate and channel mapping With a 100 Mbps data rate, 16 ns max propagation delay, and 4.9 ns max pulse-width distortion, this part handles SPI clocks up to 50 MHz (double-edge) and full-speed UART without timing margin trouble. The 3/1 channel split — three forward, one reverse — maps directly to a three-wire SPI bus (SCLK, MOSI, CS forward; MISO reverse) or a UART with RTS/CTS flow control. The unidirectional channel architecture means each channel's direction is fixed at the factory; there is no software-configurable direction toggle, so the board layout must match the 3/1 assignment. ## 85 kV/µs CMTI — surviving the switching node Fast-switching SiC or GaN FETs can couple several hundred volts per microsecond across the barrier; if the CMTI is too low, the output toggles falsely. The 85 kV/µs rating here is high enough for most industrial drives and EV traction inverters. The 2.4 ns typical rise/fall time also keeps the signal edges clean at the receiver side, reducing radiated emissions risk. ## Supply flexibility and no isolated power The supply range spans 2.25 V to 5.5 V on both sides independently, so the isolator can bridge a 3.3 V MCU domain to a 5 V peripheral bus without a level shifter. Note the \"Isolated Power: No\" flag in the specs — this device does not generate a secondary-side supply; each side needs its own local rail. That is typical for capacitive-coupling isolators in this class; if the design needs a single-supply solution with an integrated DC/DC, look at the ISO7741 family's sibling with the 'E' suffix. ## Active lifecycle — no end-of-life clock ticking No other parametric difference between the two.","metaTitle":"TI ISO7741FDWR Digital Isolator, 5000 Vrms, 100 Mbps","metaDescription":"Texas Instruments ISO7741FDWR general-purpose digital isolator: 5000 Vrms isolation, 100 Mbps data rate, 85 kV/µs CMTI, −55°C to 125°C. RFQ for current pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"-","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":"4","Base Product Number":"ISO7741","Voltage - Isolation":"5000Vrms","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-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":"$3.7100","priceTiers":[{"qty":1,"price":"$3.71000","currency":"USD"},{"qty":10,"price":"$3.33500","currency":"USD"},{"qty":25,"price":"$3.15280","currency":"USD"},{"qty":100,"price":"$2.73260","currency":"USD"},{"qty":250,"price":"$2.59244","currency":"USD"},{"qty":500,"price":"$2.32620","currency":"USD"},{"qty":1000,"price":"$1.98300","currency":"USD"},{"qty":2000,"price":"$1.98300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7d3b9b841350035d4a0188e814624994.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ISO7741FDWR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between ISO7741 and ISO7741FDWR?","answer":"ISO7741 is the base product number for the family. The ISO7741FDWR is a specific ordering variant with the 'F' suffix (indicating the 100 Mbps data rate variant — the base ISO7741 is also 100 Mbps in this case, but the 'F' historically flags the high-speed version) and the 'DWR' suffix (Tape & Reel packaging in the 16-SOIC wide-body package). The functional silicon is the same as the ISO7741DW (tube ship). No difference in isolation rating, channel count, or temperature range."},{"question":"Can ISO7741FDWR replace ISO7741DW on an existing board?","answer":"Yes, the ISO7741FDWR is a direct functional replacement for the ISO7741DW. The only difference is the shipping medium: the FDWR suffix ships in Tape & Reel, while the DW suffix ships in tubes. For a rework or repair scenario where the board was originally stuffed with the tube variant, the Tape & Reel part solders identically."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7741FDWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7741FDWR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}