{"id":7121,"date":"2026-06-23T03:57:38","date_gmt":"2026-06-23T03:57:38","guid":{"rendered":"https:\/\/ic-vendor.com\/a3941klptr-t\/"},"modified":"2026-06-23T03:57:38","modified_gmt":"2026-06-23T03:57:38","slug":"a3941klptr-t","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/a3941klptr-t\/","title":{"rendered":"A3941KLPTR-T"},"content":{"rendered":"

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

The A3941KLPTR-T from Allegro MicroSystems is a full-bridge gate driver IC for N-channel MOSFETs in a TSSOP-24 package. Designed for automotive motor drive applications, it provides charge pump, bootstrap, and comprehensive protection for driving half-bridge or full-bridge power stages.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0637\u0648\u0628\u0648\u0644\u0648\u062c\u064a\u0627<\/td>\nFull-bridge gate driver<\/td>\n<\/tr>\n
Driven MOSFETs<\/td>\n4x N-channel<\/td>\n<\/tr>\n
Gate Drive Current<\/td>\n+\/-350 mA source\/sink<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n5.5 V to 50 V<\/td>\n<\/tr>\n
Logic Input<\/td>\n3.3V \/ 5V compatible<\/td>\n<\/tr>\n
AEC-Q100<\/td>\nYes<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • \u0645\u0624\u0647\u0644 AEC-Q100 \u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0633\u064a\u0627\u0631\u0627\u062a<\/li>\n
  • Full-bridge driver for 4 N-channel MOSFETs<\/li>\n
  • Integrated charge pump for 100% high-side duty cycle<\/li>\n
  • Cross-conduction protection with adjustable dead time<\/li>\n
  • Overcurrent, over-temperature, and undervoltage protection<\/li>\n
  • Fault reporting via diagnostic output<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive EPS (electric power steering) motor drive<\/li>\n
    • Brushed DC and BLDC motor drive<\/li>\n
    • Automotive actuator control<\/li>\n
    • Industrial motor drive gate driver<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The A3941KLPTR-T from Allegro MicroSystems is a full-bridge gate driver IC for N-channel MOSFETs in a TSSOP-24 package. Designed for automotive motor drive applications, it provides charge pump, bootstrap, and comprehensive protection for driving half-bridge or full-bridge power stages. Key Specifications Topology Full-bridge gate driver Driven MOSFETs 4x N-channel Gate Drive Current +\/-350 […]<\/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":[13,29],"tags":[],"chip_brand":[176],"class_list":["post-7121","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-allegro"],"acf":{"brief_explanation":"Full-bridge gate driver, 4x N-ch MOSFET, +\/-350mA, AEC-Q100, TSSOP-24, automotive motor drive","date_code":"","package_case":"TSSOP-24 (7.80 x 4.40 x 1.00 mm)","in_stock":10916,"datasheet":"https:\/\/www.allegromicro.com\/en\/products\/motor-drivers\/brush-dc-motor-drivers\/a3941","price":"$3.45 @ 1ku","product_introduction":"The A3941KLPTR-T from Allegro MicroSystems is an AEC-Q100 qualified full-bridge gate driver IC designed for driving four N-channel MOSFETs in automotive motor drive applications. The device provides +\/-350mA gate drive current with an integrated charge pump that supports 100% high-side duty cycle operation. Logic inputs are 3.3V and 5V compatible for direct MCU interface. Protection features include cross-conduction prevention with adjustable dead time, overcurrent protection via external sense resistor, over-temperature shutdown, and undervoltage lockout. A diagnostic output reports fault conditions. The device operates from 5.5V to 50V supply in a TSSOP-24 package rated for -40C to +125C.","working_principle":"The A3941KLPTR-T integrates gate drive, charge pump, and protection for full-bridge motor drive. (1) Gate Drivers: Four gate driver outputs (GH1\/GL1, GH2\/GL2) drive the high-side and low-side MOSFETs of two half-bridges. Source capability is 350mA and sink capability is 350mA for fast switching. (2) Charge Pump: An internal charge pump generates the gate drive voltage for the high-side MOSFETs above the supply rail, supporting 100% duty cycle operation without bootstrap refresh. (3) Bootstrap: An optional bootstrap diode and capacitor can supplement the charge pump for high-frequency switching. (4) Dead Time: Programmable dead time between high-side and low-side switching prevents cross-conduction. (5) Protection: Overcurrent is detected via an external sense resistor on the SEN pin. Over-temperature shutdown activates at approximately 165C. UVLO disables outputs when VBB drops below threshold. (6) Diagnostics: The FF pin provides fault flag output, and the DIAG pin enables communication of fault type.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VBB<\/td>Power<\/td>Supply voltage (5.5-50V)<\/td><\/tr>
      2,3<\/td>GH1\/GL1<\/td>Output<\/td>Half-bridge 1 gate drives<\/td><\/tr>
      4,5<\/td>GH2\/GL2<\/td>Output<\/td>Half-bridge 2 gate drives<\/td><\/tr>
      6<\/td>SEN<\/td>Input<\/td>Current sense input<\/td><\/tr>
      7-10<\/td>IN1\/IN2\/DIS<\/td>Input<\/td>Logic control inputs<\/td><\/tr>
      11<\/td>FF<\/td>Output<\/td>Fault flag output<\/td><\/tr>
      12<\/td>VCP<\/td>I\/O<\/td>Charge pump capacitor<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive EPS (electric power steering) motor drive with 100% duty cycle<\/li>
      • Brushed DC motor drive with overcurrent and thermal protection<\/li>
      • Automotive actuator control with AEC-Q100 qualification<\/li>
      • Industrial motor drive gate driver with diagnostic fault reporting<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Allegro<\/td>A3940KLPTR-T<\/td>TSSOP-28<\/td>Half-bridge version<\/td><\/tr>
        Infineon<\/td>TLE9201F<\/td>TSSOP-14<\/td>Single half-bridge driver<\/td><\/tr>
        TI<\/td>DRV8702-Q1<\/td>HTSSOP-24<\/td>Similar gate driver<\/td><\/tr>
        ST<\/td>L6398<\/td>SO-20<\/td>Half-bridge driver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=7121"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7121\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=7121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=7121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=7121"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7121"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}