{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7741QDBQQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7741QDBQQ1","canonicalUrl":"https://icboms.com/texas-instruments/ISO7741QDBQQ1","factsUrl":"https://icboms.com/api/mcp/products/ISO7741QDBQQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7741QDBQQ1, Automotive AEC-Q100, 4-channel digital isolator, Capacitive Coupling, 100Mbps, 2500Vrms, 16-SSOP, -40°C~125°C.","salesMarkdown":"## What this digital isolator does in the assembly It is part of the ISO7741 family and carries AEC-Q100 qualification for automotive applications. The part provides 2500Vrms isolation between input and output sides, with a unidirectional channel configuration — three channels on side 1 and one on side 2. This makes it a straightforward fit for isolating SPI, UART, or general-purpose GPIO lines where the direction of each signal is fixed. ## Data rate and timing — what 100Mbps and 16ns propagation delay mean Rated for 100Mbps data rate, this isolator handles most industrial communication buses including SPI at 50 MHz or full-speed CAN FD. The maximum propagation delay of 16ns in either direction (tpLH / tpHL) keeps timing closure manageable on a mixed-signal board; you will want to account for it in the bus timing budget, especially if daisy-chaining multiple isolators. Pulse width distortion is held to 4.9ns max, so the duty cycle stays close to 50% through the barrier — useful for clock signals or PWM where edge symmetry matters. The minimum common-mode transient immunity of 85kV/µs is the spec that earns this part a spot in automotive traction inverters and industrial motor drives. Fast-switching SiC or GaN power stages can slam the isolation barrier with several kilovolts per microsecond; if the isolator cannot reject that edge, data corrupts or the output glitches. At 85kV/µs the ISO7741QDBQQ1 sits well above the requirement for most 600V–1200V inverter designs, giving margin against the switching noise. ## Supply range and operating temperature Operates from 2.25V to 5.5V on each side independently, so you can run the microcontroller side at 3.3V and the isolated side at 5V without a level shifter. No isolated power is integrated — each side needs its own local supply rail. Housed in a 16-pin SSOP package (3.90mm body width) with a standard 0.154-inch pitch. Surface-mount only. The small footprint keeps the isolation creepage distance short — verify the clearance meets your safety standard if working with mains voltages. Listed as Active in the lifecycle status, meaning TI continues to manufacture and support this part for new designs. The base product number is ISO7741; the QDBQQ1 suffix identifies the automotive-grade, 16-SSOP variant.","metaTitle":"TI ISO7741QDBQQ1 Digital Isolator, 100Mbps, AEC-Q100","metaDescription":"TI ISO7741QDBQQ1 4-channel digital isolator with capacitive coupling, 2500Vrms isolation, 100Mbps data rate, AEC-Q100 qualified for automotive.","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-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":"-40°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":"$2.9207","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7ce28ebbb736e626ddb7ec0a8564eee9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ISO7741QDBQQ1/alternatives.json"},"ai":{"faq":[{"question":"Does ISO7741QDBQQ1 have AEC-Q100 certification?","answer":"Yes, the series is listed as Automotive, AEC-Q100, confirming qualification for automotive-grade applications including under-hood and chassis domains."},{"question":"What is the difference between ISO7741 and ISO7741QDBQQ1?","answer":"ISO7741 is the base product number covering the general-purpose family. The QDBQQ1 suffix designates the automotive-qualified variant (AEC-Q100) in the 16-SSOP package. Electrically the core isolation specs — 2500Vrms, 100Mbps, 85kV/µs CMTI — are the same; the difference is the automotive-grade qualification and extended temperature range."},{"question":"Does ISO7741QDBQQ1 require an external isolated power supply?","answer":"Yes. The part does not include an integrated isolated power converter (Isolated Power: No). Each side of the isolation barrier needs its own local supply rail within the 2.25V to 5.5V range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7741QDBQQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7741QDBQQ1 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}}