{"id":146422,"date":"2017-08-21T23:31:44","date_gmt":"2017-08-21T23:31:44","guid":{"rendered":"https:\/\/\/etendez-lautonomie-des-dispositifs-usb-type-c\/"},"modified":"2017-08-21T23:31:44","modified_gmt":"2017-08-21T23:31:44","slug":"etendez-lautonomie-des-dispositifs-usb-type-c","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/etendez-lautonomie-des-dispositifs-usb-type-c\/","title":{"rendered":"\u00c9tendez l&rsquo;autonomie des dispositifs USB Type-C"},"content":{"rendered":"<p>Les produits USB Type-C doivent g\u00e9n\u00e9rer une tension de 3,3V active en permanence, pour pouvoir d\u00e9tecter les insertions de dispositifs USB. Les produits capables de fonctionner en mode PD (Power Delivery, ou fourniture d\u2019alimentation) de 5V \u00e0 20V, fournissent un rail d\u2019alimentation num\u00e9rique (1,8V\/3,3V\/5,0V) pour le contr\u00f4leur utilisant le convertisseur d\u00e9volteur MAX77756. En outre, le MAX77756 offre un courant de veille de 20&nbsp;\u00b5A, qui \u00e9tend l&rsquo;autonomie en r\u00e9duisant la consommation en veille. Pour simplifier la conception syst\u00e8me, le MAX77756 dispose d\u2019un circuit OR double-entr\u00e9e \u00e0 diode id\u00e9ale, qui permet \u00e0 la puce de s\u2019alimenter sur batterie ou \u00e0 partir d&rsquo;une source USB externe, si la batterie est vide.<br \/>\nLes dispositifs fonctionnant sur batteries multi-cellules, comme les ordinateurs portables ou ultra-portables, les tablettes, les drones, et les appareils domotiques, peuvent facilement \u00e9voluer en Type-C compatibles PD, gr\u00e2ce \u00e0 la souplesse offerte par le MAX77756. Le MAX77756 offre une combinaison unique de large plage de tension d&rsquo;entr\u00e9e, de faible courant de veille, de courant de charge utile \u00e9lev\u00e9, de double entr\u00e9e, et d&rsquo;I\u00b2C pour assurer souplesse et programmabilit\u00e9. Il existe aussi un mode d&rsquo;alimentation par d\u00e9faut si les utilisateurs ne veulent pas utiliser l&rsquo;entr\u00e9e I\u00b2C. Le MAX77756 est un CI robuste, dot\u00e9 d\u2019une protection contre les courts-circuits et d\u2019une protection thermique, d\u2019un d\u00e9marrage progressif 8&nbsp;ms limitant le courant d\u2019appel, d\u2019une architecture de contr\u00f4le en mode courant \u00e9prouv\u00e9e, et d\u2019une tol\u00e9rance de tension d&rsquo;entr\u00e9e jusqu&rsquo;\u00e0 26V.<\/p>\n<p><a href=\"http:\/\/www.maximintegrated.com\">www.maximintegrated.com<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les concepteurs de produits USB Type-C multi-cellules qui ont besoin d\u2019un courant \u00e9lev\u00e9, de deux entr\u00e9es, et du support I\u00b2C, disposent d\u00e9sormais d\u2019une solution tr\u00e8s souple avec le convertisseur buck (d\u00e9volteur) 24V, 500\u00a0mA, \u00e0 faible courant de veille (Iq), MAX77756, de Maxim Integrated Products.<\/p>\n","protected":false},"author":9,"featured_media":146423,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-146422","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>\u00c9tendez l&#039;autonomie des dispositifs USB Type-C ...<\/title>\n<meta name=\"description\" content=\"Les concepteurs de produits USB Type-C multi-cellules qui ont besoin d\u2019un courant \u00e9lev\u00e9, de deux entr\u00e9es, et du support I\u00b2C, disposent d\u00e9sormais...\" \/>\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\/146422\/\" \/>\n<meta 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