{"id":6676,"date":"2026-06-19T01:11:36","date_gmt":"2026-06-19T01:11:36","guid":{"rendered":"https:\/\/materialparts.com\/si8234bb-d-is1r\/"},"modified":"2026-06-19T01:11:36","modified_gmt":"2026-06-19T01:11:36","slug":"si8234bb-d-is1r","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/si8234bb-d-is1r\/","title":{"rendered":"SI8234BB-D-IS1R"},"content":{"rendered":"

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

The SI8234BB-D-IS1R from Skyworks Solutions (formerly Silicon Labs) is an automotive-grade dual-channel isolated gate driver with 4A peak output current and 2500 Vrms isolation. Using capacitive coupling technology with >20 kV\/\u00b5s CMTI, it drives MOSFETs and IGBTs in half-bridge configurations for automotive and industrial power conversion. The D suffix indicates high-side\/low-side configuration with overlapping protection. AEC-Q100 qualified in SOIC-16 wide body package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u901a\u9053\u6570<\/td>\n2 (high-side + low-side)<\/td>\n<\/tr>\n
Peak Output Current<\/td>\n4A (source: 2A, sink: 4A)<\/td>\n<\/tr>\n
Isolation Rating<\/td>\n2500 Vrms (1 minute)<\/td>\n<\/tr>\n
Common Mode Transient Immunity<\/td>\n>20 kV\/\u00b5s (min)<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf<\/td>\n60 ns max (tpLH, tpHL)<\/td>\n<\/tr>\n
\u8109\u51b2\u5bbd\u5ea6\u5931\u771f<\/td>\n5.6 ns max<\/td>\n<\/tr>\n
Rise\/Fall Time<\/td>\n12 ns typical<\/td>\n<\/tr>\n
Output Supply Voltage<\/td>\n9.4V to 24V<\/td>\n<\/tr>\n
Isolation Technology<\/td>\nCapacitive coupling (SiO2 dielectric)<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q100 (automotive)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-16W (7.5mm width)<\/td>\n<\/tr>\n
Approvals<\/td>\nCQC, CSA, UL, VDE<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Automotive-grade AEC-Q100 qualified isolated gate driver<\/li>\n
  • 4A peak output current for driving power MOSFETs and IGBTs<\/li>\n
  • 2500 Vrms galvanic isolation with capacitive coupling<\/li>\n
  • High CMTI: >20 kV\/\u00b5s for noisy switching environments<\/li>\n
  • Low propagation delay: 60 ns max with 5.6 ns PWD<\/li>\n
  • Overlapping protection (D suffix): prevents shoot-through<\/li>\n
  • Under-voltage lockout (UVLO) on both output channels<\/li>\n
  • UL, CSA, VDE, and CQC safety approvals<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive onboard charger (OBC) and DC-DC converter<\/li>\n
    • Motor drive half-bridge inverter<\/li>\n
    • Solar microinverter gate drive<\/li>\n
    • Industrial SMPS isolated gate drive<\/li>\n
    • EV traction inverter auxiliary power stage<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SI8234BB-D-IS1R from Skyworks Solutions (formerly Silicon Labs) is an automotive-grade dual-channel isolated gate driver with 4A peak output current and 2500 Vrms isolation. Using capacitive coupling technology with >20 kV\/\u00b5s CMTI, it drives MOSFETs and IGBTs in half-bridge configurations for automotive and industrial power conversion. The D suffix indicates high-side\/low-side configuration with […]<\/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],"tags":[],"chip_brand":[183],"class_list":["post-6676","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-skyworks"],"acf":{"brief_explanation":"Dual isolated gate driver, 4A, 2500Vrms, >20kV\/\u00b5s CMTI, AEC-Q100, SOIC-16W","date_code":"","package_case":"SOIC-16W (10.3\u00d77.5\u00d72.65 mm, 1.27mm pitch)","in_stock":2800,"datasheet":"https:\/\/www.skyworksinc.com\/-\/media\/SkyWorks\/SL\/documents\/public\/data-sheets\/si823x-datasheet.pdf","price":"$3.40 @ 1ku","product_introduction":"The SI8234BB-D-IS1R from Skyworks is an automotive-grade dual-channel isolated gate driver with 4A peak output, 2500 Vrms isolation, and >20 kV\/\u00b5s CMTI. Using capacitive coupling with overlapping protection for half-bridge driving, it is AEC-Q100 qualified for automotive OBC, motor drives, solar inverters, and industrial SMPS in an SOIC-16W package with UL, CSA, VDE, and CQC approvals.","working_principle":"The SI8234BB-D-IS1R uses capacitive coupling with silicon dioxide (SiO2) dielectric barriers to transmit gate drive signals across the isolation boundary. High-frequency carrier signals are modulated by the input PWM, transmitted through the isolation capacitors, and demodulated on the secondary side to reconstruct the gate drive signals. The D suffix version provides overlapping protection: if both VDDI (input side) and the output supply are present but the input signals command both high-side and low-side outputs ON simultaneously, the device blocks one output to prevent shoot-through. Each output channel has independent undervoltage lockout (UVLO) that disables the output when the supply is insufficient for full gate enhancement. The capacitive coupling provides >20 kV\/\u00b5s common-mode transient immunity, ensuring reliable operation in noisy switching environments with high dv\/dt transitions.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>VDDI<\/td>Power<\/td>Input-side supply (3.0-5.5V)<\/td><\/tr>\n
      2<\/td>IN_A<\/td>Input<\/td>PWM input for channel A (low-side)<\/td><\/tr>\n
      3<\/td>IN_B<\/td>Input<\/td>PWM input for channel B (high-side)<\/td><\/tr>\n
      4<\/td>GNDI<\/td>Power<\/td>Input-side ground<\/td><\/tr>\n
      5<\/td>DT<\/td>Input<\/td>Dead-time programming (tie to VDDI or GNDI)<\/td><\/tr>\n
      6<\/td>R_EN<\/td>Input<\/td>Reset\/enable (active-low, tie to VDDI for normal)<\/td><\/tr>\n
      7<\/td>DIS<\/td>Input<\/td>Disable input (tie to GNDI for normal operation)<\/td><\/tr>\n
      8<\/td>NC<\/td>\u2014<\/td>No connect<\/td><\/tr>\n
      9<\/td>VDDA<\/td>Power<\/td>Channel A output supply (9.4-24V)<\/td><\/tr>\n
      10<\/td>VOA<\/td>Output<\/td>Channel A gate drive output (low-side)<\/td><\/tr>\n
      11<\/td>GNDA<\/td>Power<\/td>Channel A ground<\/td><\/tr>\n
      12<\/td>GNDB<\/td>Power<\/td>Channel B ground (isolated)<\/td><\/tr>\n
      13<\/td>VOB<\/td>Output<\/td>Channel B gate drive output (high-side)<\/td><\/tr>\n
      14<\/td>VDDB<\/td>Power<\/td>Channel B output supply (9.4-24V, isolated)<\/td><\/tr>\n
      15,16<\/td>GNDB<\/td>Power<\/td>Channel B ground (isolated)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Automotive onboard charger (OBC) and DC-DC converter half-bridge drive<\/li>\n
      • Motor drive half-bridge inverter for industrial and EV<\/li>\n
      • Solar microinverter and string inverter gate drive<\/li>\n
      • Industrial SMPS isolated gate drive for PFC and DC-DC<\/li>\n
      • EV traction inverter auxiliary power stage switching<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Skyworks<\/td>SI8234AB-D-IS1R<\/td>SOIC-16W<\/td>0.5A version, lower drive current<\/td><\/tr>\n
        Skyworks<\/td>SI8235BB-D-IS1R<\/td>SOIC-16W<\/td>5 kVrms isolation, higher rating<\/td><\/tr>\n
        TI<\/td>UCC21520DW<\/td>SOIC-16W<\/td>4A\/6A, 5kVrms, similar function<\/td><\/tr>\n
        ADI<\/td>iP20109AS16<\/td>SOIC-16W<\/td>4A isolated gate driver, isoPower<\/td><\/tr>\n
        Broadcom<\/td>ACPL-332J-000E<\/td>SO-16<\/td>Opto-isolated gate driver, 2.5A<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6676","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=6676"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6676\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6676"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}