{"id":8053,"date":"2026-06-28T08:48:21","date_gmt":"2026-06-28T08:48:21","guid":{"rendered":"https:\/\/materialparts.com\/lt4356ims-3trpbf\/"},"modified":"2026-06-28T11:35:16","modified_gmt":"2026-06-28T11:35:16","slug":"lt4356ims-3trpbf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lt4356ims-3trpbf\/","title":{"rendered":"LT4356IMS-3#TRPBF"},"content":{"rendered":"<h2>LT4356IMS-3#TRPBF Overview<\/h2>\n<p>The LT4356IMS-3#TRPBF is a high voltage surge stopper from Analog Devices, operating voltage 4V-80V, adjustable current limiting, external N-channel MOSFET gate drive, built-in UV\/OV lockout and fault timer, in an MSOP-16 package.<\/p>\n<h3>Key Features<\/h3>\n<ul>\n<li>Operating voltage: 4V-80V<\/li>\n<li>Adjustable current limiting<\/li>\n<li>External N-channel MOSFET gate drive<\/li>\n<li>UV\/OV lockout<\/li>\n<li>Fault timer<\/li>\n<li>Supply current: 2mA<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>LT4356IMS-3#TRPBF Overview The LT4356IMS-3#TRPBF is a high voltage surge stopper from Analog Devices, operating voltage 4V-80V, adjustable current limiting, external N-channel MOSFET gate drive, built-in UV\/OV lockout and fault timer, in an MSOP-16 package. Key Features Operating voltage: 4V-80V Adjustable current limiting External N-channel MOSFET gate drive UV\/OV lockout Fault timer Supply current: 2mA<\/p>","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":[165],"class_list":["post-8053","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-adi"],"acf":{"brief_explanation":"3A surge stopper with current limit, 4-80V, MSOP-16","date_code":"","package_case":"MSOP-16 (5.00 x 4.40 x 0.90 mm)","in_stock":4042,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/4356fa.pdf","price":"$6.12 @ 1ku","product_introduction":"The LT4356IMS-3#TRPBF is a surge stopper with fault latchoff from Analog Devices, operating from 4 V to 80 V input in a 10-lead MSOP package. It protects loads from high-voltage transients by controlling an external N-channel MOSFET gate, regulating the output during overvoltage events while allowing loads to continue functioning. The -3 variant latches off upon fault and requires a SHDN pin toggle to restart, providing maximum protection for sensitive equipment. It includes an auxiliary amplifier usable as a voltage comparator or linear regulator controller, and supports back-to-back MOSFETs for reverse input protection.","working_principle":"The LT4356IMS-3 monitors both overvoltage and overcurrent conditions through external sense networks. The FB pin senses the output voltage through a resistor divider; when it exceeds the reference threshold, the error amplifier reduces GATE drive to regulate the output at the clamped voltage. For overcurrent, the voltage between VCC and SNS pins is monitored; an internal amplifier limits the sense voltage to 50 mV. In either fault condition, a fault timer (set by the TMR capacitor) starts inversely proportional to MOSFET stress. If the timer expires, FLT pulls low and the MOSFET turns off. The -3 variant latches the MOSFET off until the SHDN pin is momentarily pulled low, preventing automatic restart in persistent fault conditions. The auxiliary amplifier (IN+, AOUT) can be configured as a voltage comparator for level detection or as a linear regulator controller driving an external PNP pass transistor.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Description<\/th><\/tr><tr><td>1<\/td><td>FB<\/td><td>Feedback; output voltage divider for clamp voltage setting<\/td><\/tr><tr><td>2<\/td><td>OUT<\/td><td>Output voltage sense; connects to MOSFET source<\/td><\/tr><tr><td>3<\/td><td>GATE<\/td><td>Gate drive; drives external N-channel MOSFET<\/td><\/tr><tr><td>4<\/td><td>SNS<\/td><td>Current sense; connects between VCC and sense resistor for OCP<\/td><\/tr><tr><td>5<\/td><td>VCC<\/td><td>Input supply (4 V to 80 V)<\/td><\/tr><tr><td>6<\/td><td>SHDN<\/td><td>Shutdown; pull low to disable or toggle to clear latchoff<\/td><\/tr><tr><td>7<\/td><td>FLT<\/td><td>Fault output; active-low open-drain status indicator<\/td><\/tr><tr><td>8<\/td><td>EN<\/td><td>Enable output from auxiliary amplifier<\/td><\/tr><tr><td>9<\/td><td>GND<\/td><td>Ground<\/td><\/tr><tr><td>10<\/td><td>TMR<\/td><td>Timer; capacitor to GND sets fault timeout duration<\/td><\/tr><\/table>","application_scenarios":"<ul><li><strong>Automotive Surge Protection<\/strong>: Load dump and jump-start protection requiring latchoff for safety-critical systems<\/li><li><strong>Hot Swap Controller<\/strong>: Live board insertion with overcurrent and overvoltage protection in telecom racks<\/li><li><strong>High-Side Battery Switch<\/strong>: Controlled power connection in battery-powered industrial and medical equipment<\/li><li><strong>Intrinsic Safety Barrier<\/strong>: Voltage and current limiting for explosion-proof environments requiring no-auto-restart<\/li><li><strong>Reverse Polarity Protection<\/strong>: Back-to-back MOSFET configuration for -60 V reverse input withstand<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>VIN<\/th><th>Fault Mode<\/th><th>Package<\/th><th>Notes<\/th><\/tr><tr><td>LT4356IMS-1#TRPBF<\/td><td>Analog Devices<\/td><td>4-80 V<\/td><td>Auto retry<\/td><td>MSOP-10<\/td><td>Retry variant, same package<\/td><\/tr><tr><td>LT4356IDE-3#TRPBF<\/td><td>Analog Devices<\/td><td>4-80 V<\/td><td>Latchoff<\/td><td>DFN-12<\/td><td>DFN variant of -3<\/td><\/tr><tr><td>LT4363IMS-2#TRPBF<\/td><td>Analog Devices<\/td><td>4-80 V<\/td><td>1% retry<\/td><td>MSOP-12<\/td><td>UV\/OV comparators added<\/td><\/tr><tr><td>MAX16141<\/td><td>Maxim<\/td><td>5.5-65 V<\/td><td>Latchoff<\/td><td>TDFN-12<\/td><td>Integrated 65 mOhm FET<\/td><\/tr><tr><td>TPS25982<\/td><td>Texas Instruments<\/td><td>4.5-65 V<\/td><td>Configurable<\/td><td>VQFN-14<\/td><td>eFuse with monitoring<\/td><\/tr><\/table>\n<p>LT4356IMS-3 is a surge stopper from ADI in MSOP-10 with latchoff protection. The LT4356-1 provides automatic retry after fault. The LT4356-2 offers 60\u00b5A quiescent with auxiliary amplifier always-on. The LT4363IDE-2 provides the same surge stopping function in smaller DFN-12 with overvoltage comparator. The MAX16141 from ADI\/Maxim offers overvoltage protection with reverse polarity in TDFN-8. For eFuse integration, TPS2595 from TI combines current limiting and OV protection in VSSOP-10.<\/p>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8053","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=8053"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8053\/revisions"}],"predecessor-version":[{"id":8078,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8053\/revisions\/8078"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=8053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=8053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=8053"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=8053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}