{"id":946,"date":"2021-12-21T21:23:00","date_gmt":"2021-12-21T13:23:00","guid":{"rendered":"https:\/\/ecmos2.liho.work\/?p=946"},"modified":"2024-09-10T14:11:59","modified_gmt":"2024-09-10T06:11:59","slug":"ec4188b","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/en\/led-driver\/ec4188b\/","title":{"rendered":"EC4188B\uff5cHigh Efficiency LED Buck Controller"},"content":{"rendered":"<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC4188B.pdf\" download=\"EC4188B.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\n<div class=\"postbutton\">\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">General Description<\/h3>\n\n\n\n<p>The EC4188B is a highly-integrated, low startup current, average current mode, one cycle control PFC and fixed switching frequency PWM controller.<br>These functions enable the LED driver to easily meet the accuracy average LED current and high power factor requirements.<br>The integrated functions also include the LED short protection, open protection, and internal over temperature protection.<br>The COMP pin controls the duty by connected an RC compensation network to ground and forming the closed loop feedback control.<br>To protect the external power MOSFET from being damaged by supply over voltage, the EC4188B OUT pin voltage is clamped to about 15V.<br>The EC4188B improves the performance and reduces the cost of the LED driver. It is a 6-pin SOT23-6L package.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<p>\u25cfHigh Power Factor by One Cycle Control<br>\u25cfAccuracy Constant Current<br>\u25cfLow BOM Cost<br>\u25cfLinear Dimming on DIM Pin<br>\u25cfAverage Current \/ Fixed Frequency Control<br>\u25cfGate Output Voltage Clamp<br>\u25cfLED Open Protection (OVP)<br>\u25cfLED Short Protection (SCP)<br>\u25cfOver Current Protection (OCP)<br>\u25cfInternal OTP Protection<br>\u25cf300mA Driving Capability for OUT Pin<br>\u25cfFast Start Current<br>\u25cfIncompatible Electronic Ballast and Inductance Ballast<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n\n\n\n<p>\u25cf E26\/27, T8 LED Tube<br>\u25cf Others LED Lighting Applications<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<iframe src=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC4188B.pdf\" width=\"640\" height=\"1000\" allow=\"autoplay\"><\/iframe>\n\n\n\n<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC4188B.pdf\" download=\"EC4188B.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\n<div class=\"postbutton\">\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u898f\u683c\u66f8\u4e0b\u8f09 General Description The EC4188B is a highly-integ [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"slim_seo":{"description":"The EC4188B is a highly-integrated, low startup current, average current mode, one cycle control PFC and fixed switching frequency PWM controller. These functions enable the LED driver to easily meet the accuracy average LED current and high power factor requirements. The integrated functions also include the LED short protection, open protection, and internal over temperature protection. The COMP pin controls the duty by connected an RC compensation network to ground and forming the closed loop feedback control. To protect the external power MOSFET from being damaged by supply over voltage, the EC4188B OUT pin voltage is clamped to about 15V. The EC4188B improves the performance and reduces the cost of the LED driver. It is a 6-pin SOT23-6L package.","title":"EC4188B\uff5cHigh Efficiency LED Buck Controller - \u98db\u8679\u9ad8\u79d1\u80a1\u4efd\u6709\u9650\u516c\u53f8"},"footnotes":""},"categories":[18],"tags":[],"class_list":["post-946","post","type-post","status-publish","format-standard","hentry","category-led-driver"],"_links":{"self":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/comments?post=946"}],"version-history":[{"count":3,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/946\/revisions"}],"predecessor-version":[{"id":17482,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/946\/revisions\/17482"}],"wp:attachment":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/media?parent=946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/categories?post=946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/tags?post=946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}