{"id":2145,"date":"2026-05-14T06:45:13","date_gmt":"2026-05-14T06:45:13","guid":{"rendered":"https:\/\/materialparts.com\/iso7841fdwr\/"},"modified":"2026-05-20T04:54:17","modified_gmt":"2026-05-20T04:54:17","slug":"iso7841fdwr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/iso7841fdwr\/","title":{"rendered":"ISO7841FDWR"},"content":{"rendered":"

Productos<\/h2>\n

The ISO7841FDWR is a high-performance, quad-channel reinforced digital isolator from Texas Instruments, providing 8000Vpeak isolation with capacitive SiO2 insulation barrier technology. Featuring three forward and one reverse channel (3\/1 configuration) with default-low output state, it delivers up to 100Mbps data rate with industry-leading \u00b1100kV\/\u00b5s CMTI. The device operates from 2.25V to 5.5V on both sides, enabling voltage-level translation across the isolation barrier, and is available in a wide-body SOIC-16 package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Fabricante<\/td>\nTexas Instruments<\/td>\n<\/tr>\n
N\u00famero de canales<\/td>\n4 (3 forward \/ 1 reverse)<\/td>\n<\/tr>\n
Tensi\u00f3n de aislamiento<\/td>\n5700Vrms (1 min), 8000Vpeak<\/td>\n<\/tr>\n
Velocidad de datos<\/td>\nUp to 100Mbps<\/td>\n<\/tr>\n
Supply Voltage Range<\/td>\n2.25V to 5.5V (both sides)<\/td>\n<\/tr>\n
Retardo de propagaci\u00f3n<\/td>\n11ns typical (5V)<\/td>\n<\/tr>\n
CMTI (Min)<\/td>\n\u00b1100kV\/\u00b5s<\/td>\n<\/tr>\n
Distorsi\u00f3n de la anchura de impulsos<\/td>\n4.1ns max<\/td>\n<\/tr>\n
Default Output State<\/td>\nLow (F suffix)<\/td>\n<\/tr>\n
Channel Type<\/td>\nUnidirectional<\/td>\n<\/tr>\n
Power Consumption<\/td>\n1.7mA per channel @ 1Mbps typical<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-16 Wide Body (DW)<\/td>\n<\/tr>\n
Safety Approvals<\/td>\nVDE, UL 1577, CSA, CQC, TUV<\/td>\n<\/tr>\n
Budgetary Price<\/td>\n$4.46 @ 2ku<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 8000Vpeak reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)<\/li>\n
  • 5.7kVRMS isolation for 1 minute per UL 1577<\/li>\n
  • Industry-leading CMTI: \u00b1100kV\/\u00b5s minimum<\/li>\n
  • Low propagation delay: 11ns typical at 5V<\/li>\n
  • Wide supply range: 2.25V to 5.5V on both sides with level translation<\/li>\n
  • Enable pins for high-impedance output and reduced power consumption<\/li>\n
  • Low electromagnetic emissions for easy system-level EMC compliance<\/li>\n
  • Isolation barrier life exceeds 40 years<\/li>\n
  • Comprehensive safety certifications: VDE, UL, CSA, CQC, TUV<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Industrial automation and motor drive isolation<\/li>\n
    • Isolated RS-485, RS-232, CAN, and SPI communication<\/li>\n
    • Medical equipment isolation<\/li>\n
    • Electric vehicle onboard charger and inverter systems<\/li>\n
    • Power supply isolated feedback and gate driver interfaces<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISO7841FDWR is a high-performance, quad-channel reinforced digital isolator from Texas Instruments, providing 8000Vpeak isolation with capacitive SiO2 insulation barrier technology. Featuring three forward and one reverse channel (3\/1 configuration) with default-low output state, it delivers up to 100Mbps data rate with industry-leading \u00b1100kV\/\u00b5s CMTI. The device operates from 2.25V to 5.5V on […]<\/p>\n","protected":false},"author":2,"featured_media":2176,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,13],"tags":[],"chip_brand":[138],"class_list":["post-2145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ac-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad-channel reinforced digital isolator, 8000Vpk\/5.7kVrms, 100Mbps, 100kV\/\u00b5s CMTI, 3\/1 config, default-low, SOIC-16","date_code":"","package_case":"SOIC-16 Wide Body (DW), 10.3 x 7.5mm","in_stock":4100,"datasheet":"https:\/\/www.ti.com\/product\/ISO7841","price":"$4.46 @ 2ku","product_introduction":"The ISO7841FDWR is Texas Instruments' high-performance quad-channel reinforced digital isolator from the ISO7841 family, delivering 8000Vpeak and 5700Vrms isolation ratings with a silicon-dioxide (SiO2) capacitive barrier. The 'F' suffix denotes a default-low output state when input power or signal is lost, critical for fail-safe system design. With three forward and one reverse channel, it supports bidirectional communication across the isolation boundary. The device achieves industry-leading common-mode transient immunity (CMTI) of \u00b1100kV\/\u00b5s minimum, making it highly robust in noisy industrial environments. It supports data rates up to 100Mbps with only 11ns typical propagation delay. Both supply rails accept 2.25V to 5.5V, enabling voltage-level translation across the isolation barrier. Comprehensive safety certifications include VDE 0884-17, UL 1577, CSA, CQC, and TUV.","working_principle":"

      Capacitive Isolation Barrier<\/h3>\n

      The ISO7841FDWR uses high-voltage silicon-dioxide (SiO2) capacitors as the isolation barrier between input and output sides. Digital signals are modulated into high-frequency carrier waveforms, transmitted across the capacitive barrier, and demodulated on the receiving side. This capacitive coupling approach provides excellent electromagnetic immunity and low emissions compared to optocoupler or inductive alternatives.<\/p>\n\n

      Signal Path Architecture<\/h3>\n

      Each channel consists of an input buffer, modulator, high-voltage SiO2 capacitor pair, demodulator, and output buffer. The modulator encodes the input logic state into a differential carrier signal that passes through the isolation capacitors. On the receive side, the differential signal is demodulated and restored to the original logic level. The carrier frequency is sufficiently high to support 100Mbps data throughput.<\/p>\n\n

      Default Output State and Enable<\/h3>\n

      The 'F' variant implements a default-low output state: if the input side loses power or the input signal is absent, the output defaults to logic low. This is critical for fail-safe designs where a high output could trigger unintended operation. Enable pins (EN1, EN2) place the respective outputs in high-impedance state, useful for multi-controller bus driving and power reduction.<\/p>\n\n

      Common-Mode Transient Immunity<\/h3>\n

      The \u00b1100kV\/\u00b5s CMTI is achieved through differential signal transmission across matched capacitor pairs, which cancels common-mode noise. This makes the device highly immune to fast voltage transients common in motor drive and power converter environments.<\/p>","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>VCC1<\/td>Power<\/td>Side 1 supply voltage (2.25V to 5.5V)<\/td><\/tr>\n
      2<\/td>IN1<\/td>Input<\/td>Channel 1 logic input (forward)<\/td><\/tr>\n
      3<\/td>IN2<\/td>Input<\/td>Channel 2 logic input (forward)<\/td><\/tr>\n
      4<\/td>IN3<\/td>Input<\/td>Channel 3 logic input (forward)<\/td><\/tr>\n
      5<\/td>OUT4<\/td>Output<\/td>Channel 4 logic output (reverse, side 1)<\/td><\/tr>\n
      6<\/td>EN2<\/td>Input<\/td>Side 2 output enable (active high)<\/td><\/tr>\n
      7<\/td>GND1<\/td>Ground<\/td>Side 1 ground<\/td><\/tr>\n
      8<\/td>GND1<\/td>Ground<\/td>Side 1 ground<\/td><\/tr>\n
      9<\/td>GND2<\/td>Ground<\/td>Side 2 ground<\/td><\/tr>\n
      10<\/td>GND2<\/td>Ground<\/td>Side 2 ground<\/td><\/tr>\n
      11<\/td>EN1<\/td>Input<\/td>Side 1 output enable (active high)<\/td><\/tr>\n
      12<\/td>IN4<\/td>Input<\/td>Channel 4 logic input (reverse, side 2)<\/td><\/tr>\n
      13<\/td>OUT3<\/td>Output<\/td>Channel 3 logic output (forward, side 2)<\/td><\/tr>\n
      14<\/td>OUT2<\/td>Output<\/td>Channel 2 logic output (forward, side 2)<\/td><\/tr>\n
      15<\/td>OUT1<\/td>Output<\/td>Channel 1 logic output (forward, side 2)<\/td><\/tr>\n
      16<\/td>VCC2<\/td>Power<\/td>Side 2 supply voltage (2.25V to 5.5V)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Industrial motor drive and inverter systems requiring reinforced isolation with 100kV\/\u00b5s CMTI for noisy environments<\/li>\n
      • Isolated RS-485\/RS-232\/CAN bus communication interfaces where default-low output ensures fail-safe bus states<\/li>\n
      • Medical equipment isolation complying with IEC 60601-1 end equipment standards via CSA certification<\/li>\n
      • Electric vehicle onboard chargers and battery management systems requiring 5.7kVrms reinforced isolation<\/li>\n
      • Isolated gate driver interfaces and power supply feedback loops needing low 11ns propagation delay<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        TI<\/td>ISO7841DWR<\/td>SOIC-16 WB<\/td>Default-high output (non-F variant)<\/td><\/tr>\n
        TI<\/td>ISO7841FDWWR<\/td>SOIC-16 EWB<\/td>Extra-wide body, higher creepage<\/td><\/tr>\n
        TI<\/td>ISO7741FDWR<\/td>SOIC-16 WB<\/td>5000Vrms variant, lower cost<\/td><\/tr>\n
        ADI<\/td>ADUM141E0BRWZ<\/td>SOIC-16 WB<\/td>iCoupler, 3.75kVrms, 150Mbps, magnetic coupling<\/td><\/tr>\n
        Skyworks<\/td>SI8641BD-B-IS<\/td>SOIC-16 NB<\/td>Capacitive, 5kVrms, 150Mbps, 3\/1 config<\/td><\/tr>\n
        TI<\/td>ISO7840FDWR<\/td>SOIC-16 WB<\/td>4\/0 all-forward channel configuration<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=2145"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2145\/revisions"}],"predecessor-version":[{"id":2453,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2145\/revisions\/2453"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media\/2176"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=2145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=2145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=2145"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=2145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}