{"id":232540,"date":"2015-03-16T23:00:00","date_gmt":"2015-03-16T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/minuterie-de-reveil-haute-tension-de-tres-faible-consommation\/"},"modified":"2015-03-16T23:00:00","modified_gmt":"2015-03-16T23:00:00","slug":"minuterie-de-reveil-haute-tension-de-tres-faible-consommation","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/minuterie-de-reveil-haute-tension-de-tres-faible-consommation\/","title":{"rendered":"Minuterie de r\u00e9veil haute tension, de tr\u00e8s faible consommation"},"content":{"rendered":"<p>L&rsquo;utilisation de microcontr&ocirc;leurs ou d&rsquo;horloges en temps r&eacute;el pour le suivi de la temporisation complique d&rsquo;avantage de nombreuses conceptions. Les syst&egrave;mes &eacute;lectroniques utilis&eacute;s pour r&eacute;aliser les t&acirc;ches de routine profiteront des options de r&eacute;glage de la minuterie de ce circuit, sans avoir besoin de programmer des composants ou d&rsquo;am&eacute;liorer des microprogrammes.<br \/>\nD&eacute;fini par une r&eacute;sistance, le r&eacute;glage de la dur&eacute;e de r&eacute;veil s&rsquo;&eacute;tend de 250 ms &agrave; 39 jours. Il ne n&eacute;cessite pas de codeur et permet aux utilisateurs de param&eacute;trer facilement les minuteries de d&eacute;compte du composant via des cavaliers ou des commutateurs.<br \/>\nUne entr&eacute;e &agrave; bouton-poussoir, prot&eacute;g&eacute;e des pics de d&eacute;charges &eacute;lectrostatiques jusqu&rsquo;&agrave; &plusmn;25 kV, effectue le d&eacute;marrage de la minuterie de r&eacute;veil. Une courte pression sur ce bouton-poussoir autorise un r&eacute;veil pr&eacute;matur&eacute; de la minuterie ou une pression longue permet de l&rsquo;arr&ecirc;ter compl&egrave;tement et de mettre en sommeil le syst&egrave;me entier, avec un courant de repos de seulement 300 nA.<br \/>\nCe circuit peut &ecirc;tre &eacute;galement configur&eacute; pour d&eacute;marrer l&rsquo;alimentation avec une minuterie automatique, sans avoir besoin de presser un bouton-poussoir. Une minuterie chien de garde r&eacute;glable donne la possibilit&eacute; aux utilisateurs de limiter la dur&eacute;e pendant laquelle un syst&egrave;me est &quot;r&eacute;veill&eacute;&quot;, afin d&rsquo;emp&ecirc;cher des microcontr&ocirc;leurs ou logiciels d&eacute;fectueux de maintenir un syst&egrave;me ind&eacute;finiment en fonctionnement jusqu&rsquo;&agrave; &eacute;puisement de l&rsquo;&eacute;nergie de la batterie.\n<\/p>\n<hr \/>\n<p>La facilit&eacute; d&rsquo;utilisation, la large gamme de tension de fonctionnement et le nano courant de consommation de ce circuit conviennent particuli&egrave;rement aux composants aliment&eacute;s sur un &eacute;l&eacute;ment de batterie, ou plusieurs &eacute;l&eacute;ments de batterie et de forte tension, incluant les intervallom&egrave;tres qui sont employ&eacute;s pour d&eacute;finir des &eacute;carts en photographie, ou les applications militaires de contre-mesure, ainsi que la mesure des battements du c&oelig;ur.<br \/>\nEncapsul&eacute;e en bo&icirc;tier QFN 12 broches, de 3 x 3 mm, ou MSOP-12, cette minuterie est propos&eacute;e dans les deux polarit&eacute;s possibles, positive pour le LTC2956-1 en contr&ocirc;le de convertisseurs, ou n&eacute;gative pour le LTC2956-2 en pilotage de MOSFET canal P, et dans les gammes de temp&eacute;ratures industrielles et commerciales. <\/p>\n<\/p>\n<p><a title=\"www.linear.com\/pushbutton\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/LTC2956\" rel=\"noopener\">www.linear.com\/pushbutton<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contr\u00f4l\u00e9 par bouton-poussoir, la minuterie de r\u00e9veil LTC2956 de Linear Technology est capable de g\u00e9rer des alimentations de syst\u00e8mes aliment\u00e9s de 1,5 V \u00e0 36 V. P\u00e9riodiquement, elle r\u00e9veille et met en marche le syst\u00e8me pour accomplir ses t\u00e2ches, puis l\u2019arr\u00eate pour \u00e9conomiser l\u2019\u00e9nergie. En mode sommeil, elle tire un courant de repos de seulement 800 nA d\u2019une batterie ou de l\u2019alimentation.<\/p>\n","protected":false},"author":22,"featured_media":232541,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-232540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Minuterie de r\u00e9veil haute tension, de tr\u00e8s faible consommation ...<\/title>\n<meta name=\"description\" content=\"Contr\u00f4l\u00e9 par bouton-poussoir, la minuterie de r\u00e9veil LTC2956 de Linear Technology est capable de g\u00e9rer des alimentations de syst\u00e8mes aliment\u00e9s de 1,5 V...\" \/>\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.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/232540\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Minuterie de r\u00e9veil haute tension, de tr\u00e8s faible consommation\" \/>\n<meta property=\"og:description\" content=\"Contr\u00f4l\u00e9 par bouton-poussoir, la minuterie de r\u00e9veil LTC2956 de Linear Technology est capable de g\u00e9rer des alimentations de syst\u00e8mes aliment\u00e9s de 1,5 V \u00e0 36 V. P\u00e9riodiquement, elle r\u00e9veille et met en marche le syst\u00e8me pour accomplir ses t\u00e2ches, puis l\u2019arr\u00eate pour \u00e9conomiser l\u2019\u00e9nergie. En mode sommeil, elle tire un courant de repos de seulement 800 nA d\u2019une batterie ou de l\u2019alimentation.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/232540\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2015-03-16T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci7170_linear_ltc2956.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2038\" \/>\n\t<meta property=\"og:image:height\" content=\"1456\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"eeNews Europe\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading 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