{"id":225165,"date":"2012-09-19T22:00:00","date_gmt":"2012-09-19T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/isolateur-%c2%b5module-a-interface-numerique-spi-ou-i2c\/"},"modified":"2012-09-19T22:00:00","modified_gmt":"2012-09-19T22:00:00","slug":"isolateur-%c2%b5module-a-interface-numerique-spi-ou-i2c","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/isolateur-%c2%b5module-a-interface-numerique-spi-ou-i2c\/","title":{"rendered":"Isolateur \u00b5Module \u00e0 interface num\u00e9rique SPI ou I2C"},"content":{"rendered":"<p style=\"margin-right:0cm;line-height:normal\" class=\"MsoBodyText2\">Ce composant supprime les boucles de masse en s&eacute;parant &eacute;lectriquement des deux c&ocirc;t&eacute;s les signaux de communications et les signaux logiques par une barri&egrave;re d&rsquo;isolation inductive qui peut supporter une tension de mode commun importante, jusqu&rsquo;&agrave; 2500 VEff. Le convertisseur DC-DC int&eacute;gr&eacute;, isol&eacute;, &agrave; faible niveau d&rsquo;IEM, alimente l&rsquo;interface de communications&nbsp;et fournit les niveaux de tensions de sorties r&eacute;glables 5 V, +12,5 V et -12,5 V, bien adapt&eacute;s &agrave; l&rsquo;alimentation des convertisseurs des syst&egrave;mes d&rsquo;acquisition de donn&eacute;es. Avec une isolation galvanique de 2500 VEff. , une alimentation secondaire embarqu&eacute;e et une interface de communication fonctionnant jusqu&rsquo;&agrave; 20 M&eacute;ch.\/s, cet isolateur ne n&eacute;cessite pas de composants externes et conduit &agrave; une solution compl&egrave;te en &micro;Module pour les syst&egrave;mes isol&eacute;s des communications de donn&eacute;es. Il se d&eacute;cline en deux versions d&rsquo;interface de communication. Le LTM2883-I est &agrave; interface compatible I2C, jusqu&rsquo;&agrave; 400 kHz, avec transmission bidirectionnelle s&eacute;rie de donn&eacute;es (SDA) plus horloge (SCL) et trois signaux isol&eacute;s, suppl&eacute;mentaires, de niveaux logique CMOS, qui fonctionnent jusqu&rsquo;&agrave; 20 M&eacute;ch.\/s. le LTM2883-S est &agrave; interface compatible SPI et pr&eacute;sente un total de six canaux de communications&nbsp;CMOS num&eacute;riquement isol&eacute;s. Tous ces canaux fonctionnent jusqu&rsquo;&agrave; 20 M&eacute;ch.\/s et comprennent trois signaux de transmission directe&nbsp; (\/CS, SCK et SDI) et trois signaux de transmission inverse (SDO, DO1 et DO2). Quand il est configur&eacute; pour des communications&nbsp;SPI, l&rsquo;horloge fonctionne &agrave; 8 MHz au maximum pour une communication&nbsp;unidirectionnelle, ou &agrave; 4 MHz pour un fonctionnement en bidirectionnel. <br \/>\nLe convertisseur DC-DC de 2 MHz, qui alimente le circuit, permet &agrave; chacune des trois alimentations de sortie isol&eacute;es de fournir un courant jusqu&rsquo;&agrave; 20 mA, sur toute la gamme de temp&eacute;ratures de fonctionnement. Une broche d&rsquo;alimentation de niveau logique procure une interface directe avec les microcontr&ocirc;leurs basse tension, jusqu&rsquo;&agrave; 1,62 V, et une broche ON permet l&rsquo;arr&ecirc;t du circuit avec une consommation inf&eacute;rieure &agrave; 10 &micro;A. Les caract&eacute;ristiques suppl&eacute;mentaires comprennent les communications&nbsp;ininterrompues pour des surtensions en mode commun sup&eacute;rieures &agrave; 30 kV\/&micro;s et un durcissement pour les ESD HBM, d&eacute;charge &eacute;lectrostatiques mod&egrave;le du corps humain, de &plusmn;10 kV pour la barri&egrave;re d&rsquo;isolation. Ce produit est encapsul&eacute; en bo&icirc;tier BGA de 15 x 11,25 mm conforme aux normes RoHS.<\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LTM2883\" target=\"_blank\" title=\"www.linear.com\/product\/LTM2883\" rel=\"noopener\">www.linear.com\/product\/LTM2883<\/a><span style=\"font-size:10.0pt;line-height:150%\"><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans les applications des syst\u00e8mes industriels, les potentiels de masse peuvent pr\u00e9senter de grandes diff\u00e9rences, exc\u00e9dant souvent les marges de tol\u00e9rance, ce qui peut conduire \u00e0 une interruption des communications et m\u00eame \u00e0 la destruction des composants. Pour solutionner ce probl\u00e8me, Linear Technology propose son isolateur \u00b5Module six canaux LTM2883 \u00e0 interface num\u00e9rique SPI\/ I2C, avec trois rails d\u2019alimentation r\u00e9gul\u00e9s pour les syst\u00e8mes aliment\u00e9s sur 3,3 V et 5 V.<\/p>\n","protected":false},"author":22,"featured_media":225166,"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-225165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Isolateur \u00b5Module \u00e0 interface num\u00e9rique SPI ou I2C ...<\/title>\n<meta name=\"description\" content=\"Dans les applications des syst\u00e8mes industriels, les potentiels de masse peuvent pr\u00e9senter de grandes diff\u00e9rences, exc\u00e9dant souvent les marges de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/225165\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Isolateur \u00b5Module \u00e0 interface num\u00e9rique SPI ou I2C\" \/>\n<meta property=\"og:description\" content=\"Dans les applications des syst\u00e8mes industriels, les potentiels de masse peuvent pr\u00e9senter de grandes diff\u00e9rences, exc\u00e9dant souvent les marges de tol\u00e9rance, ce qui peut conduire \u00e0 une interruption des communications et m\u00eame \u00e0 la destruction des composants. Pour solutionner ce probl\u00e8me, Linear Technology propose son isolateur \u00b5Module six canaux LTM2883 \u00e0 interface num\u00e9rique SPI\/ I2C, avec trois rails d\u2019alimentation r\u00e9gul\u00e9s pour les syst\u00e8mes aliment\u00e9s sur 3,3 V et 5 V.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/225165\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-09-19T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/test.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6229_ltm2883.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2023\" \/>\n\t<meta property=\"og:image:height\" content=\"1445\" \/>\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\" 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