{"id":3199,"date":"2026-05-31T03:20:50","date_gmt":"2026-05-31T03:20:50","guid":{"rendered":"https:\/\/materialparts.com\/lt4363ims-2trpbf\/"},"modified":"2026-06-06T03:28:48","modified_gmt":"2026-06-06T03:28:48","slug":"lt4363ims-2trpbf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lt4363ims-2trpbf\/","title":{"rendered":"LT4363IMS-2#TRPBF"},"content":{"rendered":"

Productos<\/h2>\n

The LT4363IMS-2#TRPBF from Analog Devices (formerly Linear Technology) is a high voltage surge stopper with current limit that protects loads from high voltage transients. It regulates the output during overvoltage events by controlling an external N-channel MOSFET, with an operating range of 4 V to 80 V. The -2 variant features automatic retry after cool-down, in a 12-lead MSOP package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Operating Voltage Range<\/td>\n4 V to 80 V<\/td>\n<\/tr>\n
Reverse Input Protection<\/td>\n-60 V<\/td>\n<\/tr>\n
Overcurrent Response<\/td>\n< 5 us<\/td>\n<\/tr>\n
Current Sense Voltage<\/td>\n50 mV<\/td>\n<\/tr>\n
Shutdown Current<\/td>\n7 uA<\/td>\n<\/tr>\n
Fault Timer<\/td>\nAdjustable (external capacitor)<\/td>\n<\/tr>\n
UV\/OV Thresholds<\/td>\n1.275 V (adjustable via divider)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to 85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Withstands surges over 80 V with VCC clamp<\/li>\n
  • Adjustable output clamp voltage<\/li>\n
  • Fast overcurrent limit: less than 5 us<\/li>\n
  • Reverse input protection to -60 V<\/li>\n
  • Adjustable UV\/OV comparator thresholds<\/li>\n
  • Low 7 uA shutdown current<\/li>\n
  • Adjustable fault timer with FLT warning output<\/li>\n
  • LT4363-2 auto-retry with <1% duty cycle during faults<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Automotive\/avionic\/industrial surge protection<\/li>\n
    • Hot swap and live insertion<\/li>\n
    • High-side switch for battery systems<\/li>\n
    • Intrinsic safety applications<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LT4363IMS-2#TRPBF from Analog Devices (formerly Linear Technology) is a high voltage surge stopper with current limit that protects loads from high voltage transients. It regulates the output during overvoltage events by controlling an external N-channel MOSFET, with an operating range of 4 V to 80 V. The -2 variant features automatic retry […]<\/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":[13,42],"tags":[],"chip_brand":[165],"class_list":["post-3199","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-adi"],"acf":{"brief_explanation":"High-voltage surge stopper, 4-80 V, current limit, auto-retry (-2), MSOP-12","date_code":"","package_case":"MSOP-12 (4.04 x 3.00 mm, with exposed pad)","in_stock":3200,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/lt4363.pdf","price":"$3.44 @ 1ku","product_introduction":"The LT4363IMS-2#TRPBF from Analog Devices is a high-voltage surge stopper that protects sensitive loads from voltage transients such as automotive load dump events. It operates by controlling the gate of an external N-channel MOSFET to regulate the output voltage during overvoltage conditions, allowing loads to continue functioning at a safe, clamped voltage level. The device also provides overcurrent protection by monitoring the voltage drop across a sense resistor between the SNS and OUT pins, limiting the sense voltage to 50 mV. When a fault condition is detected, an adjustable timer starts; the FLT pin pulls low to warn of an impending shutdown, and if the condition persists, the MOSFET is turned off. The LT4363-2 variant automatically retries after a cool-down period with less than 1% retry duty cycle, making it suitable for applications requiring autonomous recovery. Two precision comparators monitor for undervoltage (UV) and overvoltage (OV) conditions on the input supply.","working_principle":"The LT4363IMS-2#TRPBF operates through four functional subsystems: (1) The gate driver uses an internal charge pump to drive the external N-channel MOSFET gate approximately 13 V above the OUT pin, with a 14 V protection clamp. During normal operation, the MOSFET is fully enhanced. (2) The overvoltage clamp monitors the output voltage through the FB pin. When the voltage at FB exceeds 1.275 V, the gate voltage is reduced to regulate the output at the clamp level, protecting downstream loads while keeping them operational. (3) The overcurrent protection limits the voltage across the sense resistor (SNS to OUT) to 50 mV by reducing the MOSFET gate drive. Under severe faults (OUT below 2 V), the limit reduces to 25 mV. The fault timer at the TMR pin charges proportionally to MOSFET stress. (4) The fault management system provides a FLT warning output when TMR reaches 1.275 V, and turns off the MOSFET at 1.375 V. The LT4363-2 then auto-retries after a cool-down period with <1% duty cycle, minimizing MOSFET stress during persistent faults.","pin_description":"
      Pin No.<\/td>Pin Name<\/td>Function<\/td><\/tr>
      1<\/td>VCC<\/td>Positive supply input (4 V to 80 V)<\/td><\/tr>
      2<\/td>UV<\/td>Undervoltage comparator input (1.275 V threshold)<\/td><\/tr>
      3<\/td>OV<\/td>Overvoltage comparator input (1.275 V threshold)<\/td><\/tr>
      4<\/td>SHDN<\/td>Shutdown control (pull below 0.4 V to shutdown)<\/td><\/tr>
      5<\/td>FLT<\/td>Fault output (open collector, pulls low before shutdown)<\/td><\/tr>
      6<\/td>TMR<\/td>Fault timer capacitor connection<\/td><\/tr>
      7<\/td>SNS<\/td>Current sense input (high side of sense resistor)<\/td><\/tr>
      8<\/td>OUT<\/td>Output voltage sense (MOSFET source)<\/td><\/tr>
      9<\/td>GATE<\/td>N-channel MOSFET gate drive output<\/td><\/tr>
      10<\/td>FB<\/td>Voltage regulator feedback input (1.275 V threshold)<\/td><\/tr>
      11<\/td>ENOUT<\/td>Enable output (open collector, high-Z when MOSFET fully on)<\/td><\/tr>
      12<\/td>GND<\/td>Device ground<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive front-end protection against load dump and ISO 7637 surge transients, clamping output to safe voltage for downstream electronics<\/li>
      • Hot swap controllers for server and telecom line cards where inrush current limiting and overvoltage protection are required<\/li>
      • Industrial 24 V\/48 V bus protection with reverse battery protection using back-to-back MOSFETs<\/li>
      • Intrinsic safety barrier circuits where the auto-retry feature with <1% duty cycle meets spark energy limits<\/li><\/ul>","alternative_models":"
        Model<\/td>Brand<\/td>Vin Range<\/td>Fault Mode<\/td>Package<\/td><\/tr>
        LT4363IMS-1#TRPBF<\/td>ADI<\/td>4-80 V<\/td>Latch-off<\/td>MSOP-12<\/td><\/tr>
        LT4363CDE-2#TRPBF<\/td>ADI<\/td>4-80 V<\/td>Auto-retry<\/td>DFN-12<\/td><\/tr>
        LTC4366ITS8#TRPBF<\/td>ADI<\/td>9-500 V<\/td>Latch-off<\/td>TSOT-23-8<\/td><\/tr>
        TIDA-01273<\/td>TI<\/td>4-65 V<\/td>Auto-retry<\/td>Reference design<\/td><\/tr>
        MAX16141<\/td>ADI<\/td>5.5-65 V<\/td>Auto-retry<\/td>TSSOP-16<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=3199"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3199\/revisions"}],"predecessor-version":[{"id":3280,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3199\/revisions\/3280"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3199"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}