{"id":3902,"date":"2026-06-09T01:15:41","date_gmt":"2026-06-09T01:15:41","guid":{"rendered":"https:\/\/materialparts.com\/bsp742r\/"},"modified":"2026-06-09T01:15:41","modified_gmt":"2026-06-09T01:15:41","slug":"bsp742r","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/bsp742r\/","title":{"rendered":"BSP742R"},"content":{"rendered":"

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

The BSP742R from Infineon is a single-channel smart high-side power switch in the Classic PROFET 12V family. With 350mOhm on-resistance and 0.4A nominal load current, it integrates comprehensive protection and diagnostics in PG-DSO-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Ron<\/td>\n350mOhm typical<\/td>\n<\/tr>\n
Nominal Load Current<\/td>\n0.4A<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n5V to 34V<\/td>\n<\/tr>\n
Overvoltage Protection<\/td>\n41V<\/td>\n<\/tr>\n
Turn-On Time<\/td>\n140us max<\/td>\n<\/tr>\n
Standby Current<\/td>\n26uA typical<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nPG-DSO-8 (SO-8)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +150C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Overload and short circuit protection<\/li>\n
  • Thermal shutdown with auto-restart<\/li>\n
  • Overvoltage protection including load dump<\/li>\n
  • Open drain diagnostic output<\/li>\n
  • Open load detection in OFF-state<\/li>\n
  • CMOS compatible input, AEC qualified<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Body Control Module<\/li>\n
    • Seat and mirror control<\/li>\n
    • Automotive relay replacement<\/li>\n
    • Start-stop transmission systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BSP742R from Infineon is a single-channel smart high-side power switch in the Classic PROFET 12V family. With 350mOhm on-resistance and 0.4A nominal load current, it integrates comprehensive protection and diagnostics in PG-DSO-8 package. Key Specifications Ron 350mOhm typical Nominal Load Current 0.4A Operating Voltage 5V to 34V Overvoltage Protection 41V Turn-On Time […]<\/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":[173],"class_list":["post-3902","post","type-post","status-publish","format-standard","hentry","category-gate-driver-ics","category-integrated-circuits-ics","chip_brand-infineon"],"acf":{"brief_explanation":"Smart high-side switch, 350mOhm, 0.4A, 5-34V, PROFET 12V, SO-8","date_code":"","package_case":"PG-DSO-8 (5.0 x 4.0 mm, SO-8)","in_stock":13666,"datasheet":"https:\/\/www.infineon.com\/dgdl\/BSP742R-DataSheet-v01_03-EN.pdf","price":"$0.65 @ 1ku","product_introduction":"The BSP742R is a single-channel intelligent high-side power switch from Infineon Classic PROFET 12V family in Smart SIPMOS technology. It integrates N-channel vertical power FET with charge pump, CMOS input, and diagnostic feedback. Embedded protections include overload, current limitation, short circuit, thermal shutdown with restart, overvoltage (including load dump), and reverse battery protection. With 350mOhm on-resistance and 0.4A nominal current, it replaces electromechanical relays in 12V\/24V automotive DC applications.","working_principle":"The BSP742R integrates power stage with control logic and protection. (1) Power: N-channel vertical MOSFET driven by internal charge pump for low Ron. (2) Control: CMOS-compatible IN pin activates switch; 26uA standby when off. (3) Protection: Current limit at 0.4A min; thermal shutdown at 150C with auto-restart; overvoltage clamp at 41V. (4) Diagnostics: Open-drain ST pin indicates faults; open load detection in OFF-state. (5) Reverse protection: External GND resistor provides reverse battery protection.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Logic ground<\/td><\/tr>
      2<\/td>IN<\/td>Input (high = ON)<\/td><\/tr>
      3<\/td>OUT<\/td>Output to load<\/td><\/tr>
      4<\/td>ST<\/td>Diagnostic feedback (open drain)<\/td><\/tr>
      5-8<\/td>VBB<\/td>Positive supply (4 pins)<\/td><\/tr><\/table>","application_scenarios":"
      • BCM: Drives interior lights, mirror heaters, relay coils with protection and diagnostics<\/li>
      • Seat control: Switches heating elements and small motors with thermal protection<\/li>
      • Decentralized light modules: Self-protecting smart switches replace fuses and relays<\/li>
      • Start-stop systems: 26uA standby minimizes battery drain during engine-off<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Infineon<\/td>BSP752R<\/td>PG-DSO-8<\/td>Lower RDS(on)<\/td><\/tr>
        Infineon<\/td>BTS6143D<\/td>PG-DSO-8<\/td>PROFET+2<\/td><\/tr>
        ST<\/td>VN5T006ASPTR-E<\/td>PowerSSO-12<\/td>Single, 60mOhm<\/td><\/tr>
        onsemi<\/td>NCV84160<\/td>SO-8<\/td>Single HSD, 160mOhm<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3902","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=3902"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3902\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3902"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}