{"id":5240,"date":"2026-06-09T10:37:33","date_gmt":"2026-06-09T10:37:33","guid":{"rendered":"https:\/\/materialparts.com\/l6491d\/"},"modified":"2026-06-09T10:37:33","modified_gmt":"2026-06-09T10:37:33","slug":"l6491d","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/l6491d\/","title":{"rendered":"L6491D"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

L6491D from ST is a 600V half-bridge gate driver with 4A output. 50ns\/35ns rise\/fall time. Interlocking, UVLO, OCD. SOIC-14.<\/p>\n

\u0645\u0628\u062f\u0623 \u0627\u0644\u0639\u0645\u0644<\/h2>\n

High-side driver level-shifted from bootstrap supply. Low-side driver referenced to COM. Interlocking prevents shoot-through. UVLO on both channels. Overcurrent detection via DESAT. Differential input for noise immunity.<\/p>\n

Pin Description<\/h2>\n\n\n\n\n\n\n
\u062f\u0628\u0648\u0633<\/th>\n\u0627\u0644\u0627\u0633\u0645<\/th>\n\u0627\u0644\u0648\u0638\u064a\u0641\u0629<\/th>\n<\/tr>\n
1<\/td>\nIN\/SD<\/td>\nPWM input\/shutdown<\/td>\n<\/tr>\n
3<\/td>\nHVG<\/td>\nHigh-side gate<\/td>\n<\/tr>\n
5<\/td>\nLVG<\/td>\nLow-side gate<\/td>\n<\/tr>\n
8<\/td>\nBOOT<\/td>\nBootstrap<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
    \n
  • Motor drive inverters<\/li>\n
  • Switched-mode power supplies<\/li>\n
  • Induction heating<\/li>\n<\/ul>\n

    Alternative Models<\/h2>\n\n\n\n
    \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629<\/th>\n\u0631\u0642\u0645 \u0627\u0644\u062c\u0632\u0621<\/th>\n\u0627\u0644\u0645\u0644\u0627\u062d\u0638\u0627\u062a<\/th>\n<\/tr>\n
    ST<\/td>\nL6490D<\/td>\nSimilar gate driver<\/td>\n<\/tr>\n<\/table>","protected":false},"excerpt":{"rendered":"

    Product Overview L6491D from ST is a 600V half-bridge gate driver with 4A output. 50ns\/35ns rise\/fall time. Interlocking, UVLO, OCD. SOIC-14. Working Principle High-side driver level-shifted from bootstrap supply. Low-side driver referenced to COM. Interlocking prevents shoot-through. UVLO on both channels. Overcurrent detection via DESAT. Differential input for noise immunity. Pin Description Pin Name Function […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36,13],"tags":[],"chip_brand":[142],"class_list":["post-5240","post","type-post","status-publish","format-standard","hentry","category-gate-driver-ics","category-integrated-circuits-ics","chip_brand-st"],"acf":{"brief_explanation":"Half-bridge gate driver, 600V, 4A, SOIC-14","date_code":"","package_case":"SOIC-14 (8.7 x 3.9 x 1.5mm)","in_stock":2313,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/l6491d.pdf","price":"$2.50 @ 1ku","product_introduction":"L6491D from ST is a 600V half-bridge gate driver with 4A output. 50ns\/35ns rise\/fall time. Interlocking, UVLO, OCD. SOIC-14.","working_principle":"High-side driver level-shifted from bootstrap supply. Low-side driver referenced to COM. Interlocking prevents shoot-through. UVLO on both channels. Overcurrent detection via DESAT. Differential input for noise immunity.","pin_description":"
    Pin<\/th>Name<\/th>Function<\/th><\/tr>
    1<\/td>IN\/SD<\/td>PWM input\/shutdown<\/td><\/tr>
    3<\/td>HVG<\/td>High-side gate<\/td><\/tr>
    5<\/td>LVG<\/td>Low-side gate<\/td><\/tr>
    8<\/td>BOOT<\/td>Bootstrap<\/td><\/tr><\/table>","application_scenarios":"
    • Motor drive inverters<\/li>
    • Switched-mode power supplies<\/li>
    • Induction heating<\/li><\/ul>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Notes<\/th><\/tr>
      ST<\/td>L6490D<\/td>Similar gate driver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=5240"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5240\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5240"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5240"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}