{"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 The Texas Instruments ISO7741QDBQQ1 is a 4-channel digital isolator using capacitive coupling to pass digital signals across a galvanic isolation barrier. 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. ## 85 kV/µs common-mode transient immunity — why it matters for motor drives and inverters 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. ## Package and footprint 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. ## Lifecycle and sourcing 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","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7ce28ebbb736e626ddb7ec0a8564eee9.pdf","sourceUrl":null},"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":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}