{"id":7485,"date":"2026-06-24T07:28:41","date_gmt":"2026-06-24T07:28:41","guid":{"rendered":"https:\/\/materialparts.com\/bsp452\/"},"modified":"2026-06-24T07:28:41","modified_gmt":"2026-06-24T07:28:41","slug":"bsp452","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/bsp452\/","title":{"rendered":"BSP452"},"content":{"rendered":"

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

The BSP452 from Infineon Technologies is an N-channel logic-level power MOSFET integrated as a smart high-side switch in a SOT-223 package. Rated at 45V, 2.2A with integrated overtemperature and short-circuit protection, it provides a complete protected power switch solution for automotive and industrial loads.<\/p>\n

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\u0627\u0644\u0646\u0648\u0639<\/td>\nN-channel smart high-side switch<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n5 V to 45 V<\/td>\n<\/tr>\n
On-Resistance<\/td>\n200 mOhm (typical)<\/td>\n<\/tr>\n
Continuous Current<\/td>\n2.2 A<\/td>\n<\/tr>\n
Input Logic<\/td>\nCMOS compatible (3.3V\/5V)<\/td>\n<\/tr>\n
Protection<\/td>\nOvertemperature, short circuit, overvoltage<\/td>\n<\/tr>\n
Diagnosis<\/td>\nStatus flag output<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-223<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to +150 C (Tj)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Integrated power MOSFET with driver and protection circuits<\/li>\n
  • Logic-level CMOS input compatible with 3.3V and 5V microcontrollers<\/li>\n
  • Overtemperature shutdown with automatic restart<\/li>\n
  • Short-circuit protection with current limitation<\/li>\n
  • Status flag output for fault diagnosis<\/li>\n
  • ESD protection on input and output pins<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive lamp and LED driver switching<\/li>\n
    • Solenoid and relay driver with protection<\/li>\n
    • Industrial resistive heater control<\/li>\n
    • Distribution panel load switching<\/li>\n
    • Microcontroller GPIO power expansion<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BSP452 from Infineon Technologies is an N-channel logic-level power MOSFET integrated as a smart high-side switch in a SOT-223 package. Rated at 45V, 2.2A with integrated overtemperature and short-circuit protection, it provides a complete protected power switch solution for automotive and industrial loads. Key Specifications Type N-channel smart high-side switch Operating Voltage […]<\/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":[13,32],"tags":[],"chip_brand":[173],"class_list":["post-7485","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-infineon"],"acf":{"brief_explanation":"Smart high-side switch, 45V, 2.2A, 200mOhm, logic input, SOT-223","date_code":"","package_case":"SOT-223 (6.5 x 3.5 mm)","in_stock":9876,"datasheet":"https:\/\/www.infineon.com\/cms\/en\/product\/power\/smart-power-switches\/bsp452\/","price":"$0.65 @ 1ku","product_introduction":"The BSP452 from Infineon Technologies is a monolithic smart high-side power switch that integrates an N-channel power MOSFET with its gate driver, charge pump, and comprehensive protection circuits in a compact SOT-223 package. The device operates from a 5V to 45V supply and can switch loads up to 2.2A continuous current with a typical on-resistance of 200mOhm. The CMOS-compatible logic input (IN) allows direct interface with 3.3V or 5V microcontrollers, while the integrated charge pump ensures the MOSFET is fully enhanced even at low supply voltages. Protection features include overtemperature shutdown with automatic restart, short-circuit current limitation, and overvoltage clamping.","working_principle":"The BSP452 operates as a fully integrated smart high-side power switch. (1) The input logic (IN pin) controls the gate driver circuit, which drives the internal N-channel power MOSFET between the VS (supply) and OUT (load) terminals. The integrated charge pump generates a gate voltage above VS to fully enhance the MOSFET, ensuring low on-resistance even at low supply voltages. (2) The overtemperature protection monitors the die temperature and shuts down the MOSFET when the junction exceeds the threshold. After cooling by the hysteresis margin, the device automatically restarts. (3) The short-circuit protection limits the output current when a fault is detected, and the status flag (ST) is asserted to signal the fault to the microcontroller.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>IN<\/td>Logic input (CMOS, 3.3V\/5V)<\/td><\/tr>
      2<\/td>ST<\/td>Status flag output (open-drain)<\/td><\/tr>
      3<\/td>VS<\/td>Power supply input (5-45V)<\/td><\/tr>
      4<\/td>OUT<\/td>Power output to load<\/td><\/tr>
      Tab<\/td>GND<\/td>Ground (heat sink tab)<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive lamp, LED, and bulb driver with integrated protection<\/li>
      • Solenoid and electromagnetic valve driver with short-circuit protection<\/li>
      • Industrial resistive heater switching with overtemperature safeguard<\/li>
      • Power distribution panel load switching with status monitoring<\/li>
      • Microcontroller GPIO power expansion for higher-current loads<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        BSP452H<\/td>Infineon<\/td>Automotive qualified<\/td><\/tr>
        BSP752<\/td>Infineon<\/td>45V, 3.4A, higher current<\/td><\/tr>
        BTS4140N<\/td>Infineon<\/td>40V, 1.4A, SOT-223<\/td><\/tr>
        VNN7NV0413TR<\/td>STMicroelectronics<\/td>40V, 4A, VIPower M0-5<\/td><\/tr>
        NCV8402ADTRG<\/td>onsemi<\/td>45V, 2.5A, DPAK<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7485","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=7485"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7485\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7485"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7485"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}