{"id":2121,"date":"2017-11-01T10:41:52","date_gmt":"2017-11-01T10:41:52","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=2121"},"modified":"2017-11-01T10:41:52","modified_gmt":"2017-11-01T10:41:52","slug":"reference-design-supports-qualcomm-quick-charge-4-class-a","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/reference-design-supports-qualcomm-quick-charge-4-class-a\/","title":{"rendered":"Reference design supports Qualcomm Quick Charge 4 Class A"},"content":{"rendered":"<span class=\"highlight highlight-blue\"><a href=\"http:\/\/www.diodes.com\" target=\"_blank\" rel=\"noopener\">Diodes Incorporated<\/a><\/span> and <span class=\"highlight highlight-blue\"><a href=\"http:\/\/www.weltrend.com\" target=\"_blank\" rel=\"noopener\">Weltrend Semiconductor Inc<\/a><\/span> have announced a joint reference design for a 27W, Class A charger that is one of the industry\u2019s first chargers to support Qualcomm Quick Charge 4 specification for the fast charging of mobile devices.<\/p>\n<p>Quick Charge 4 is the latest fast-charging specification from Qualcomm Technologies, offering up to 20% faster charging, up to 30% greater efficiency, and running 5% cooler when compared to Quick Charge 3.0.<br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-format=\"fluid\" data-ad-layout=\"in-article\" data-ad-client=\"ca-pub-7565662001938327\" data-ad-slot=\"7585079586\"><\/ins><br \/>\n<script>\n(adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><br \/>\nQuick Charge 4 also supports USB PD and PPS (programmable power supply), helping to standardise the capabilities of adaptors using these technologies, while being designed to deliver headline-making charging performance that provides five hours of talk time from just five minutes of charging, along with comprehensive safety features.<\/p>\n<p>The reference design uses Diodes\u2019 AP3302 peak-current control, quasi-resonant (QR) PWM controller, which is optimized for high performance, low standby power and cost-effective offline flyback conversion, and its APR345 secondary-side MOSFET synchronous rectification driver that directly supports CCM, DCM and QR flyback topologies.<\/p>\n<p>Weltrend provides the highly integrated WT6615F programmable protocol decoder that supports the latest programmable power supply specification for Quick Charge protocols and USB PD, and consequently fully implements all the requirements of the Quick Charge 4 specification.<\/p>\n<p>Weltrend\u2019s WT6615F Qualcomm Quick Charge 4 Controller is certified by GRL. The reference design supports Quick Charge 4 Class A (18-27W) and also provides optional Quick Charge 2.0 and Quick Charge 3.0 compliance to support the Quick Charge 4+ program.<\/p>\n<p>It provides support for USB PD 3.0 and PPS, including PDO at 5V and 9V, ADPO from 3V to 11V in 20mV steps, and current from 0A to 3A in 50mA steps.<\/p>\n<p>Its safety management capability provides monitoring of voltage, current, and temperature, with reporting and protection features. The charger design supports low standby current consumption and meets Energy Star DOE VI and CoC Tier II efficiency requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Diodes Incorporated and Weltrend Semiconductor Inc have announced a joint reference design for a 27W, Class A charger that is one of the industry\u2019s first chargers to support Qualcomm Quick Charge 4 specification for the fast charging of mobile devices. Quick Charge 4 is the latest fast-charging specification from Qualcomm Technologies, offering up to 20% &hellip;<\/p>\n","protected":false},"author":1,"featured_media":2122,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[753,755,754],"class_list":["post-2121","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-diodes-incorporated","tag-qualcomm-quick-charge-4-compliant-27w-reference-design","tag-weltrend-semiconductor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Reference design supports Qualcomm Quick Charge 4 Class A - Engineer News Network<\/title>\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.engineernewsnetwork.com\/blog\/reference-design-supports-qualcomm-quick-charge-4-class-a\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reference design supports Qualcomm Quick Charge 4 Class A - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Diodes Incorporated and Weltrend Semiconductor Inc have announced a joint reference design for a 27W, Class A charger that is one of the industry\u2019s first chargers to support Qualcomm Quick Charge 4 specification for the fast charging of mobile devices. 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