{"id":4671,"date":"2018-02-15T07:00:02","date_gmt":"2018-02-15T07:00:02","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=4671"},"modified":"2018-02-15T07:33:54","modified_gmt":"2018-02-15T07:33:54","slug":"microprocessor-supervisory-circuit-monitors-system-voltage-with-programmable-delay","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/microprocessor-supervisory-circuit-monitors-system-voltage-with-programmable-delay\/","title":{"rendered":"Microprocessor supervisory circuit monitors system voltage with programmable delay"},"content":{"rendered":"<p>The PT7M3808 family of microprocessor supervisory circuits introduced by <span class=\"highlight highlight-blue\">Diodes Incorporated<\/span> monitors system voltages from 0.4V to 5.0V.<\/p>\n<p>With threshold accuracy from 0.5% and an adjustable delay time from 1.25ms to 10ms, these small form-factor devices enable power-on reset functionality for microprocessor and other digital systems while consuming minimal power.<br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-7565662001938327\" data-ad-slot=\"7585079586\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<p>Applications include notebook and desktop computers, and battery-powered portable equipment for markets ranging from data centres to security systems.<\/p>\n<p>Offered in fixed-threshold versions for standard voltage rails between 0.9V and 5V, and with an adjustable threshold version down to 0.4V, the PT7M3808 uses a precision reference to provide a 0.5% negative-going input threshold accuracy when monitoring voltages up to 3.3V and 1% accuracy at voltages from 3.3V to 5.0V.<\/p>\n<p>The delay time is adjusted from 1.25ms to 10ms by connecting an external capacitor to the CT pin; a longer 20ms delay can be achieved by disconnecting the CT pin, while a 300ms delay is possible by connecting the CT pin to VDD with a resistor.<\/p>\n<p>The PT7M3808 has a very low quiescent current, typically 2.8A, making it well-suited for battery-powered applications.<\/p>\n<p>Available in SOT26 and DFN2020-6 packages, the PT7M3808 takes up very little board space for both new and drop-in replacement designs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The PT7M3808 family of microprocessor supervisory circuits introduced by Diodes Incorporated monitors system voltages from 0.4V to 5.0V. With threshold accuracy from 0.5% and an adjustable delay time from 1.25ms to 10ms, these small form-factor devices enable power-on reset functionality for microprocessor and other digital systems while consuming minimal power. Applications include notebook and desktop &hellip;<\/p>\n","protected":false},"author":1,"featured_media":4672,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[765,2445,906,2444,2446,2443,1932],"class_list":["post-4671","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-data-centres","tag-desktop-computers","tag-diodes","tag-microprocessor-supervisory-circuits","tag-portable-equipment","tag-pt7m3808","tag-security-systems"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Microprocessor supervisory circuit monitors system voltage with programmable delay - Engineer News Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/microprocessor-supervisory-circuit-monitors-system-voltage-with-programmable-delay\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microprocessor supervisory circuit monitors system voltage with programmable delay - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"The PT7M3808 family of microprocessor supervisory circuits introduced by Diodes Incorporated monitors system voltages from 0.4V to 5.0V. With threshold accuracy from 0.5% and an adjustable delay time from 1.25ms to 10ms, these small form-factor devices enable power-on reset functionality for microprocessor and other digital systems while consuming minimal power. 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