{"id":6932,"date":"2026-06-22T02:13:21","date_gmt":"2026-06-22T02:13:21","guid":{"rendered":"https:\/\/materialparts.com\/iso7741dwr\/"},"modified":"2026-06-22T02:13:21","modified_gmt":"2026-06-22T02:13:21","slug":"iso7741dwr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/iso7741dwr\/","title":{"rendered":"ISO7741DWR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The ISO7741DWR from Texas Instruments is a quad-channel digital isolator with 5000Vrms isolation, 3\/1 channel direction, and 100Mbps data rate in an SOIC-16 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nQuad-Channel Digital Isolator<\/td>\n<\/tr>\n
\u6e20\u9053<\/td>\n4 (3 forward + 1 reverse)<\/td>\n<\/tr>\n
Isolation Rating<\/td>\n5000 Vrms (1 minute)<\/td>\n<\/tr>\n
Working Voltage<\/td>\n1200 Vpeak (reinforced)<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n0 to 100 Mbps<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf<\/td>\n10.5 ns (typical)<\/td>\n<\/tr>\n
\u8109\u51b2\u5bbd\u5ea6\u5931\u771f<\/td>\n2.5 ns (max)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.5V to 5.5V (each side)<\/td>\n<\/tr>\n
Current per Channel<\/td>\n1.5 mA (typical @ 5V, 1Mbps)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-16 (10.3 x 7.5 mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +125C (D grade)<\/td>\n<\/tr>\n
Safety Approvals<\/td>\nUL1577, VDE, CSA, TUV, CQC<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 5000Vrms reinforced isolation<\/li>\n
  • 100 Mbps data rate per channel<\/li>\n
  • 3 forward + 1 reverse channel configuration<\/li>\n
  • 10.5 ns typical propagation delay<\/li>\n
  • 2.5 ns pulse width distortion<\/li>\n
  • Wide 2.5V to 5.5V supply range per side<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • SPI bus isolation<\/li>\n
    • Industrial communication isolation<\/li>\n
    • Motor drive signal isolation<\/li>\n
    • Medical equipment signal isolation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISO7741DWR from Texas Instruments is a quad-channel digital isolator with 5000Vrms isolation, 3\/1 channel direction, and 100Mbps data rate in an SOIC-16 package. Key Specifications Type Quad-Channel Digital Isolator Channels 4 (3 forward + 1 reverse) Isolation Rating 5000 Vrms (1 minute) Working Voltage 1200 Vpeak (reinforced) Data Rate 0 to 100 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-6932","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"4-CH Digital Isolator, 5000Vrms, 100Mbps, 3+1, SOIC-16","date_code":"","package_case":"SOIC-16 (10.3 x 7.5 x 2.65 mm, 1.27mm pitch)","in_stock":5678,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/iso7741.pdf","price":"$2.60 @ 1ku","product_introduction":"The ISO7741DWR from Texas Instruments is a quad-channel digital isolator with 5000Vrms reinforced isolation rating in an SOIC-16 package. This is the next-generation successor to the ISO7131CCDBQR, offering improved electromagnetic immunity and lower power consumption. The 3 forward + 1 reverse channel configuration is optimized for SPI bus isolation (SCLK, MOSI, CS forward; MISO reverse) with a single device. The 100 Mbps data rate supports SPI clock frequencies up to 50 MHz. The 10.5 ns typical propagation delay and 2.5 ns maximum pulse width distortion maintain signal integrity for timing-sensitive protocols. The 5000 Vrms isolation and 1200 Vpeak working voltage meet reinforced isolation requirements per IEC 61010-1 and VDE 0884-10. The wide 2.5V to 5.5V supply range on each side supports level translation between different voltage domains. The DWR suffix indicates SOIC-16 package with tape and reel.","working_principle":"The ISO7741DWR uses TI's second-generation capacitive isolation technology with improved electromagnetic immunity. The isolation barrier consists of silicon dioxide (SiO2) capacitors that provide both galvanic isolation and high-frequency signal coupling. The transmitter modulates the input signal using on-off keying (OOK), and the receiver demodulates it on the other side of the barrier. Compared to the ISO7131 generation, the ISO7741 improves electromagnetic immunity by incorporating a differential receiver architecture that rejects common-mode noise more effectively, particularly during fast transient events (IEC 61000-4-4 EFT). The 100 Mbps data rate is determined by the carrier frequency and modulation bandwidth. The 10.5 ns propagation delay includes the OOK encoding, capacitive coupling through the SiO2 barrier, and demodulation. Each side has independent supply rails, and the device supports supply voltages as low as 2.5V for low-power MCU interfaces.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VCC1<\/td>Power<\/td>Side 1 supply (2.5-5.5V)<\/td><\/tr>
      2<\/td>INA<\/td>Input<\/td>Channel A input (forward)<\/td><\/tr>
      3<\/td>OUTB<\/td>Output<\/td>Channel B output (reverse)<\/td><\/tr>
      4<\/td>INC<\/td>Input<\/td>Channel C input (forward)<\/td><\/tr>
      5<\/td>IND<\/td>Input<\/td>Channel D input (forward)<\/td><\/tr>
      6<\/td>GND1<\/td>Power<\/td>Side 1 ground<\/td><\/tr>
      7<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      8<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      9<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      10<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      11<\/td>GND2<\/td>Power<\/td>Side 2 ground<\/td><\/tr>
      12<\/td>OUTD<\/td>Output<\/td>Channel D output (forward)<\/td><\/tr>
      13<\/td>OUTC<\/td>Output<\/td>Channel C output (forward)<\/td><\/tr>
      14<\/td>INB<\/td>Input<\/td>Channel B input (reverse)<\/td><\/tr>
      15<\/td>OUTA<\/td>Output<\/td>Channel A output (forward)<\/td><\/tr>
      16<\/td>VCC2<\/td>Power<\/td>Side 2 supply (2.5-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • SPI bus isolation: SCLK+MOSI+CS forward, MISO reverse with single IC<\/li>
      • Motor drive signal isolation with 5000Vrms reinforced rating and EFT immunity<\/li>
      • Medical equipment UART\/SPI isolation with 100Mbps and level translation<\/li>
      • Industrial PLC digital I\/O with 1200Vpeak working voltage<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>ISO7131CCDBQR<\/td>SSOP-16<\/td>Previous generation, 150Mbps<\/td><\/tr>
        TI<\/td>ISO7741FQDWVRQ1<\/td>SOIC-16<\/td>Automotive qualified version<\/td><\/tr>
        Silicon Labs<\/td>Si8631BD-B-IS1<\/td>SOIC-16<\/td>3+1 channel, 150Mbps<\/td><\/tr>
        ADI<\/td>iCoupler ADuM1411CRWZ<\/td>SOIC-16<\/td>3+1 channel, 100Mbps<\/td><\/tr>
        TI<\/td>ISO7740DWR<\/td>SOIC-16<\/td>4 forward channels version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6932"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6932\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6932"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}