{"id":221611,"date":"2011-05-09T22:00:00","date_gmt":"2011-05-09T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-de-gestion-de-puissance-programmable\/"},"modified":"2011-05-09T22:00:00","modified_gmt":"2011-05-09T22:00:00","slug":"circuit-de-gestion-de-puissance-programmable","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuit-de-gestion-de-puissance-programmable\/","title":{"rendered":"Circuit de gestion de puissance programmable"},"content":{"rendered":"<p>Les sept r&eacute;gulateurs LDO programmables pr&eacute;sentent un faible bruit typiquement de 30 &micro;V RMS de 100 Hz &agrave; 100 kHz, une r&eacute;gulation ligne\/charge inf&eacute;rieure &agrave; 1 mV statique et un r&eacute;jection d&rsquo;alimentation de moins de 70 dB &agrave; 1 kHz. Le convertisseur DC\/DC int&eacute;gr&eacute; ne n&eacute;cessite pas l&rsquo;adjonction d&rsquo;une diode &nbsp;Schottky externe et pourtant, il parvient &agrave; fournir une efficacit&eacute; &eacute;lev&eacute;e (jusqu&rsquo;&agrave; 95%) pendant tout la p&eacute;riode de fonctionnement. La fr&eacute;quence d&rsquo;interruption de 2,2 MHz du convertisseur DC-DC qui utilise une inductance minuscule et bas profil, permet de r&eacute;duire la dimension du circuit imprim&eacute;. De plus, une pompe de charge 5V ,60 mA ainsi que 5 sources de courant programmables sont inclues pour alimenter des LED pour le r&eacute;tro &eacute;clairage de l&rsquo;afficheur. Sur la puce, l&rsquo;amplificateur audio faible distorsion fournit 1 W pour les haut-parleurs 8O, les sonneries Hi-Fi &nbsp;ou autres utilisations audio. Le circuit AS3605 comprend &eacute;galement un chargeur pour les batteries Li-Ion, incluant les algorithmes de charge pour le chargement &agrave; r&eacute;gime lent automatique, &agrave; tension constante programmable et &agrave; chargement de courant constant.<br \/>\nLa tension de sortie de l&rsquo;AS3605 et le r&eacute;glage de tous les r&eacute;gulateurs sont programm&eacute;s par logiciel. Gr&acirc;ce au logiciel et &agrave; la carte de d&eacute;monstration, la m&eacute;moire OTP de l&rsquo;AS3605 peut &ecirc;tre ais&eacute;ment programm&eacute;e, permettant de rapidement r&eacute;aliser la fabrication de prototypes et une introduction sur le march&eacute;. La pente peut &ecirc;tre ajust&eacute;e pour les convertisseurs abaisseurs de tension. L&rsquo;utilisateur peut programmer la s&eacute;quence de d&eacute;marrage avec des &eacute;carts de temps de 1 ms ou de 4 ms. Les broches d&rsquo;E\/S &agrave; usage g&eacute;n&eacute;ral peuvent &ecirc;tre aussi programm&eacute;es selon un timing sp&eacute;cifique afin de contr&ocirc;ler les autres parties du syst&egrave;me. L&rsquo;AS3605 est contr&ocirc;l&eacute; par une interface s&eacute;rie simple &agrave; utiliser qui int&egrave;gre toutes les fonctions n&eacute;cessaires aux syst&egrave;mes telles que Reset, Watchdog, et d&eacute;tection de courant. Les tensions de sorties et les d&eacute;lais de mise en marche &nbsp;peuvent &ecirc;tre programm&eacute;s via la m&eacute;moire OTP interne.<\/p>\n<p><a href=\"http:\/\/www.austriamicrosystems.com\/PMIC\/AS3605\">www.austriamicrosystems.com\/PMIC\/AS3605<\/a><\/p>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Destin\u00e9 aux applications mobiles bas\u00e9es sur batteries Li-Ion, le circuit AS3605 d&rsquo;Austriamicrosystems se caract\u00e9rise par des s\u00e9quences de d\u00e9marrage programmables et une haute int\u00e9gration r\u00e9duisant les co\u00fbts. Il int\u00e8gre sur une seule puce sept r\u00e9gulateurs \u00e0 faible chute de tension (LDOs), un convertisseur DC\/DC, un chargeur de batteries complet, un driver de r\u00e9tro \u00e9clairage LED et un amplificateur de puissance audio.<\/p>\n","protected":false},"author":22,"featured_media":221612,"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-221611","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit de gestion de puissance programmable ...<\/title>\n<meta name=\"description\" content=\"Destin\u00e9 aux applications mobiles bas\u00e9es sur batteries Li-Ion, le circuit AS3605 d&#039;Austriamicrosystems se caract\u00e9rise par des s\u00e9quences de d\u00e9marrage...\" \/>\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\/221611\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit de gestion de puissance programmable\" \/>\n<meta property=\"og:description\" content=\"Destin\u00e9 aux applications mobiles bas\u00e9es sur batteries Li-Ion, le circuit AS3605 d&#039;Austriamicrosystems se caract\u00e9rise par des s\u00e9quences de d\u00e9marrage programmables et une haute int\u00e9gration r\u00e9duisant les co\u00fbts. 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