{"id":229952,"date":"2014-05-11T22:00:00","date_gmt":"2014-05-11T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/gestionnaire-de-systeme-dalimentation-pmbus\/"},"modified":"2014-05-11T22:00:00","modified_gmt":"2014-05-11T22:00:00","slug":"gestionnaire-de-systeme-dalimentation-pmbus","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/gestionnaire-de-systeme-dalimentation-pmbus\/","title":{"rendered":"Gestionnaire de syst\u00e8me d&rsquo;alimentation PMBus"},"content":{"rendered":"<p>Ce circuit ajuste, d&eacute;termine les marges de tension et g&egrave;re les sorties d&rsquo;alimentation avec une pr&eacute;cision de &plusmn;0,25%, la meilleure de sa cat&eacute;gorie, &eacute;levant les rendements de la carte du circuit et la fiabilit&eacute; &agrave; long terme. Les s&eacute;quences de l&rsquo;alimentation (diagramme temporel et suivi de tension), supervision et erreur d&rsquo;enregistrement sont &eacute;galement m&eacute;moris&eacute;s dans l&rsquo;EEPROM. Tous les composants passifs basiques &ndash; filtres passe-bas RC, condensateur de d&eacute;couplage et r&eacute;sistances de tirage sont int&eacute;gr&eacute;s. La haute int&eacute;gration des fonctions et composants r&eacute;duit l&#8217;empreinte de l&rsquo;application, diminue le co&ucirc;t du mat&eacute;riel et facilite le routage des cartes ASIC, DSP et FPGA, &agrave; grand nombre de pistes, dans les serveurs, les routeurs de r&eacute;seaux et les &eacute;quipements de tests industriels.<br \/>\nUn CAN 16 bits, interne au LTM2987, mesure les tensions de sortie de l&rsquo;alimentation, la tension d&rsquo;entr&eacute;e et la temp&eacute;rature du composant. Des superviseurs de sous-tension et de surtension emp&ecirc;chent le dysfonctionnement et des dommages du syst&egrave;me. Les erreurs d&eacute;clenchent l&rsquo;enregistrement d&rsquo;une bo&icirc;te noire dans l&rsquo;EEPROM, ce qui simplifie l&rsquo;analyse des d&eacute;faillances tout en produisant un aper&ccedil;u des raisons pour de futures am&eacute;liorations du syst&egrave;me. Plusieurs syst&egrave;mes d&rsquo;alimentation peuvent &ecirc;tre mis en cascade pour g&eacute;rer les s&eacute;quences et les erreurs de plus de 16 lignes de tension. \n<\/p>\n<hr \/>\n<p>Plus d&rsquo;une centaine de commandes, compatibles PMBus, sont pr&eacute;sentes pour une programmation facile et une relecture&nbsp;des donn&eacute;es du syst&egrave;me d&rsquo;alimentation. La configuration du registre est r&eacute;alis&eacute;e gr&acirc;ce &agrave; l&rsquo;environnement de d&eacute;veloppement LTpowerPlay qui est compatible avec tous les composants de gestion d&rsquo;un syst&egrave;me d&rsquo;alimentation num&eacute;rique (PSM) de Linear Technology. Sp&eacute;cifi&eacute; sur les gammes de temp&eacute;ratures commerciales, 0&deg;C &agrave; 70&deg;C, et industrielles, -40&deg;C &agrave; 105&deg;C, le LTM2987 est pr&eacute;sent&eacute; en un bo&icirc;tier BGA (matrice de billes) de 144 broches, 15mm x 15mm. \n<\/p>\n<p><a title=\"www.linear.com\/product\/LTM2987\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/ltm2987\" rel=\"noopener\">www.linear.com\/product\/LTM2987<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linear Technology pr\u00e9sente le LTM2987, un gestionnaire de syst\u00e8me d&rsquo;alimentation PMBus, 16 canaux, \u00b5Module \u00e0 haute int\u00e9gration, qui ajoute plus de contr\u00f4le et de gestion \u00e0 un syst\u00e8me d&rsquo;alimentation analogique. Une configuration \u00e0 base de logiciel et la mesure de la consommation du syst\u00e8me contribuent \u00e0 r\u00e9duire le temps de mise sur le march\u00e9, \u00e0 am\u00e9liorer la fiabilit\u00e9 du syst\u00e8me et permettre l&rsquo;optimisation de la consommation d&rsquo;\u00e9nergie de la carte.<\/p>\n","protected":false},"author":22,"featured_media":229953,"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-229952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Gestionnaire de syst\u00e8me d&#039;alimentation PMBus ...<\/title>\n<meta name=\"description\" content=\"Linear Technology pr\u00e9sente le LTM2987, un gestionnaire de syst\u00e8me d&#039;alimentation PMBus, 16 canaux, \u00b5Module \u00e0 haute int\u00e9gration, qui ajoute plus 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:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/229952\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gestionnaire de syst\u00e8me d&#039;alimentation PMBus\" \/>\n<meta property=\"og:description\" content=\"Linear Technology pr\u00e9sente le LTM2987, un gestionnaire de syst\u00e8me d&#039;alimentation PMBus, 16 canaux, \u00b5Module \u00e0 haute int\u00e9gration, qui ajoute plus de contr\u00f4le et de gestion \u00e0 un syst\u00e8me d&#039;alimentation analogique. Une configuration \u00e0 base de logiciel et la mesure de la consommation du syst\u00e8me contribuent \u00e0 r\u00e9duire le temps de mise sur le march\u00e9, \u00e0 am\u00e9liorer la fiabilit\u00e9 du syst\u00e8me et permettre l&#039;optimisation de la consommation d&#039;\u00e9nergie de la carte.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/229952\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-05-11T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci4325_ltm2987.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1516\" \/>\n\t<meta property=\"og:image:height\" content=\"1083\" \/>\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\" 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