{"id":228398,"date":"2013-11-04T23:00:00","date_gmt":"2013-11-04T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/jauge-de-charge-de-batterie-a-interface-i2c-fonctionnant-jusqua-20-v\/"},"modified":"2013-11-04T23:00:00","modified_gmt":"2013-11-04T23:00:00","slug":"jauge-de-charge-de-batterie-a-interface-i2c-fonctionnant-jusqua-20-v","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/jauge-de-charge-de-batterie-a-interface-i2c-fonctionnant-jusqua-20-v\/","title":{"rendered":"Jauge de charge de batterie \u00e0 interface I2C, fonctionnant jusqu\u2019\u00e0 20 V"},"content":{"rendered":"<p>Cette jauge convient aux applications aliment&eacute;es sur plusieurs &eacute;l&eacute;ments de batterie, incluant les outils professionnels de forte puissance et les &eacute;quipements m&eacute;dicaux portatifs. Le courant de batterie est d&eacute;termin&eacute; &agrave; partir de la mesure de tension aux bornes d&rsquo;une r&eacute;sistance de d&eacute;tection de courant externe, c&ocirc;t&eacute; haut, et en int&eacute;grant cette information pour en d&eacute;duire la charge. Un int&eacute;grateur analogique 14 bits bidirectionnel re&ccedil;oit la polarit&eacute; du courant de charge ou de d&eacute;charge de la batterie et un diviseur pr&eacute;alable, programmable, autorise une large gamme de capacit&eacute;s de batterie. Les informations relatives &agrave; la charge, la tension, l&rsquo;intensit&eacute; et la temp&eacute;rature sont communiqu&eacute;es au syst&egrave;me h&ocirc;te via une interface deux fils compatible I2C \/ SMBus qui sert &eacute;galement pour la configuration de la jauge de charge. Ce syst&egrave;me h&ocirc;te peut programmer les seuils de tension &eacute;lev&eacute;s et bas pour tous les param&egrave;tres mesur&eacute;s qui, s&rsquo;ils sont d&eacute;clench&eacute;s, diffusent une alerte en utilisant soit le protocole d&rsquo;alerte du SMBus, soit un drapeau d&rsquo;&eacute;tat d&rsquo;un registre. De faible consommation, ce composant affiche une intensit&eacute; de repos inf&eacute;rieur &agrave; 120 &micro;A.<br \/>\nEncapsul&eacute; en petit bo&icirc;tier DFN 8 broches, de 3 x 3 mm, conforme &agrave; la norme RoHS, ce circuit est propos&eacute; dans les versions commerciale et industrielle, supportant des gammes de temp&eacute;ratures de fonctionnement respectives de 0 &deg;C &agrave; 70 &deg;C et de -40 &deg;C &agrave; 85 &deg;C. <\/p>\n<\/p>\n<p><a title=\"www.linear.com\/product\/LTC2943\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/LTC2943\" rel=\"noopener\">www.linear.com\/product\/LTC2943<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La jauge de charge pour batteries d\u2019accumulateur LTC2943 de Linear Technology mesure directement les batteries de 3,6 V \u00e0 20 V. Aucun circuit de d\u00e9calage de niveau sur les broches d\u2019alimentation et de mesure n\u2019\u00e9tant requis pour s\u2019adapter aux tensions des \u00e9l\u00e9ments, la consommation totale en courant est minimis\u00e9e et la pr\u00e9cision de mesure pr\u00e9serv\u00e9e. V\u00e9ritable jauge de charge, ce circuit mesure la charge, la tension, l\u2019intensit\u00e9 et la temp\u00e9rature avec une pr\u00e9cision de 1%.<\/p>\n","protected":false},"author":22,"featured_media":228399,"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-228398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Jauge de charge de batterie \u00e0 interface I2C, fonctionnant jusq...<\/title>\n<meta name=\"description\" content=\"La jauge de charge pour batteries d\u2019accumulateur LTC2943 de Linear Technology mesure directement les batteries de 3,6 V \u00e0 20 V. 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