{"id":8341,"date":"2026-06-28T12:26:33","date_gmt":"2026-06-28T12:26:33","guid":{"rendered":"https:\/\/materialparts.com\/iso7242mdw\/"},"modified":"2026-06-28T12:26:33","modified_gmt":"2026-06-28T12:26:33","slug":"iso7242mdw","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/iso7242mdw\/","title":{"rendered":"ISO7242MDW"},"content":{"rendered":"

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

The ISO7242MDW from Texas Instruments is a quad-channel, 2 forward \/ 2 reverse, 150-Mbps digital isolator in a 16-pin SOIC (DW) package. It provides galvanic isolation up to 2500 Vrms using a capacitive SiO2 isolation barrier, supporting both 3.3 V and 5 V supply rails on either side independently. The M-suffix version features CMOS VCC\/2 input thresholds without input noise filters, enabling maximum data rates up to 150 Mbps with a typical propagation delay of 19 ns.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n4 (2 forward \/ 2 reverse)<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n150 Mbps<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n2500 Vrms (VISO), 4000 VPK (VIOTM)<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf<\/td>\n19 ns (typ)<\/td>\n<\/tr>\n
\u8109\u51b2\u5bbd\u5ea6\u5931\u771f<\/td>\n2 ns (max)<\/td>\n<\/tr>\n
CMTI<\/td>\n25 kV\/\u00b5s (min)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3 V to 5 V per side<\/td>\n<\/tr>\n
Supply Current<\/td>\n3 mA per channel (typ)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-SOIC (DW)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Capacitive SiO2 isolation barrier for high EMC robustness<\/li>\n
  • Low channel-to-channel output skew: 1 ns max<\/li>\n
  • Low pulse width distortion: 2 ns max<\/li>\n
  • Jitter content: 1 ns typ at 150 Mbps<\/li>\n
  • Default output HIGH when input disabled or VCC1 unpowered<\/li>\n
  • UL 1577 and DIN EN IEC 60747-17 certified<\/li>\n
  • 4 kV ESD protection on all pins<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial automation and motor drive isolation<\/li>\n
    • Isolated SPI, UART, and GPIO communication<\/li>\n
    • Medical equipment galvanic isolation<\/li>\n
    • Power supply feedback loop isolation<\/li>\n
    • Automotive CAN\/LIN bus isolation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISO7242MDW from Texas Instruments is a quad-channel, 2 forward \/ 2 reverse, 150-Mbps digital isolator in a 16-pin SOIC (DW) package. It provides galvanic isolation up to 2500 Vrms using a capacitive SiO2 isolation barrier, supporting both 3.3 V and 5 V supply rails on either side independently. The M-suffix version features […]<\/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":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-8341","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad-channel 2\/2 digital isolator, 150Mbps, 2500Vrms, 16-SOIC, -40 to 125C","date_code":"","package_case":"SOIC-16 (DW) (10.30 x 7.50 x 2.65 mm)","in_stock":7837,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/iso7242m.pdf","price":"$4.51 @ 1ku","product_introduction":"The ISO7242MDW is a high-speed quad-channel digital isolator from Texas Instruments featuring two forward and two reverse signal channels. Built on TI's proven capacitive SiO2 isolation technology, it provides 2500 Vrms basic isolation with 4000 VPK transient withstand voltage and 25 kV\/us minimum common-mode transient immunity. The M-option provides CMOS VCC\/2 input thresholds without noise filtering, supporting data rates up to 150 Mbps with 19 ns typical propagation delay. Each side of the isolator can be powered independently from 3.3 V or 5 V supplies, enabling mixed-voltage system designs. The device meets UL 1577 and DIN EN IEC 60747-17 safety certifications and is rated for operation from -40\u00b0C to +125\u00b0C, making it suitable for harsh industrial and automotive environments.","working_principle":"The ISO7242MDW uses a capacitive isolation barrier with SiO2 dielectric to transfer digital signals across the galvanic isolation boundary. Each input channel consists of two internal data paths: a high-frequency path (100 kbps to 150 Mbps) using differential edge detection, and a low-frequency path (DC to 100 kbps) using pulse-width modulation (PWM). An internal decision logic circuit monitors the time between signal transitions and automatically selects the appropriate path. High-frequency signals pass through the capacitive barrier via edge-differentiated differential pulses, while low-frequency or DC signals are modulated by an internal oscillator to create PWM carriers that can traverse the capacitive barrier. At the output, a low-pass filter removes the PWM carrier, and a multiplexer selects the correct signal path. This dual-channel architecture ensures reliable data transfer across the full DC-to-150 Mbps range.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VCC1<\/td>Power<\/td>Side 1 supply voltage (3.3 V or 5 V)<\/td><\/tr>
      2<\/td>INA<\/td>Input<\/td>Channel A forward input<\/td><\/tr>
      3<\/td>OUTB<\/td>Output<\/td>Channel B reverse output<\/td><\/tr>
      4<\/td>IND<\/td>Input<\/td>Channel D forward input<\/td><\/tr>
      5<\/td>OUTC<\/td>Output<\/td>Channel C reverse output<\/td><\/tr>
      6<\/td>EN1<\/td>Input<\/td>Side 1 output enable (active high)<\/td><\/tr>
      7<\/td>GND1<\/td>Ground<\/td>Side 1 ground<\/td><\/tr>
      8<\/td>GND1<\/td>Ground<\/td>Side 1 ground<\/td><\/tr>
      9<\/td>GND2<\/td>Ground<\/td>Side 2 ground<\/td><\/tr>
      10<\/td>EN2<\/td>Input<\/td>Side 2 output enable (active high)<\/td><\/tr>
      11<\/td>INC<\/td>Input<\/td>Channel C reverse input<\/td><\/tr>
      12<\/td>OUTA<\/td>Output<\/td>Channel A forward output<\/td><\/tr>
      13<\/td>INB<\/td>Input<\/td>Channel B reverse input<\/td><\/tr>
      14<\/td>OUTD<\/td>Output<\/td>Channel D forward output<\/td><\/tr>
      15<\/td>VCC2<\/td>Power<\/td>Side 2 supply voltage (3.3 V or 5 V)<\/td><\/tr>
      16<\/td>VCC2<\/td>Power<\/td>Side 2 supply voltage<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial Motor Drives<\/strong>: Isolated gate driver control and current sensing feedback in variable-frequency drives<\/li>
      • Isolated Communication Interfaces<\/strong>: SPI, UART, and GPIO isolation between high-voltage and low-voltage domains<\/li>
      • Medical Equipment<\/strong>: Patient-connected measurement isolation per IEC 60601<\/li>
      • Power Supply Feedback<\/strong>: Isolated error amplifier and voltage monitor loops in offline converters<\/li>
      • Automotive Systems<\/strong>: Battery management isolation and CAN bus ground separation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Channels<\/th>Data Rate<\/th>Isolation<\/th>Notes<\/th><\/tr>
        ISO7742FDWR<\/td>Texas Instruments<\/td>4 (2\/2)<\/td>100 Mbps<\/td>5000 Vrms<\/td>Higher isolation, reinforced<\/td><\/tr>
        ADUM1410ARWZ<\/td>Analog Devices<\/td>4 (4\/0)<\/td>150 Mbps<\/td>2500 Vrms<\/td>All same direction<\/td><\/tr>
        SI8642BB-B-IS<\/td>Silicon Labs<\/td>4 (2\/2)<\/td>150 Mbps<\/td>5000 Vrms<\/td>Lower power, reinforced<\/td><\/tr>
        ISO7241MDW<\/td>Texas Instruments<\/td>4 (3\/1)<\/td>150 Mbps<\/td>2500 Vrms<\/td>3 forward \/ 1 reverse variant<\/td><\/tr>
        CBCU5742DR<\/td>Texas Instruments<\/td>4 (2\/2)<\/td>100 Mbps<\/td>5000 Vrms<\/td>Auto-qualified version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8341","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=8341"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8341\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8341"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}