{"id":4728,"date":"2024-06-11T10:58:01","date_gmt":"2024-06-11T02:58:01","guid":{"rendered":"https:\/\/www.hotchip.com.cn\/?post_type=product&p=4728"},"modified":"2024-08-14T15:13:04","modified_gmt":"2024-08-14T07:13:04","slug":"ht4123","status":"publish","type":"product","link":"https:\/\/www.hotchip.com.cn\/ht4123\/","title":{"rendered":"2A 28V\u540c\u6b65\u964d\u538b\u578bLED\u9a71\u52a8\u5668SOT23-6 HT4123"},"content":{"rendered":"

HT4123\u4fdd\u8bc1\u4e86LED\u77ed\u4fdd\u62a4\u3001\u70ed\u4fdd\u62a4\u3001\u542f\u52a8\u7535\u6d41\u635f\u8017\u4fdd\u62a4\u3001\u5728\u7535\u538b\u9501\u5b9a\u4e0b\u8f93\u5165\u7684\u9c81\u68d2\u6027\u3002
\nHT4123\u91c7\u7528SOT23-6\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7d27\u51d1\u7684\u89e3\u51b3\u65b9\u6848\u548c\u6700\u5c0f\u7684\u5916\u90e8\u7ec4\u4ef6\u3002<\/p>\n

1\u3001\u89c4\u683c\u53c2\u6570<\/strong><\/div>\n
VIN=12V\uff0cT<\/span>A<\/sub>=25\u2103\uff0c\u9664\u975e\u53e6\u6709\u8bf4\u660e\u3002<\/span><\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7279\u6027<\/strong><\/td>\n\u7b26\u53f7<\/strong><\/td>\n\u6d4b\u8bd5\u6761\u4ef6<\/strong><\/td>\n\u5355\u4f4d<\/strong><\/td>\n\u6700\u5c0f\u503c<\/strong><\/td>\n\u5178\u578b\u503c<\/strong><\/td>\n\u6700\u5927\u503c<\/strong><\/td>\n<\/tr>\n
VIN\u4f4e\u4e8e\u7535\u538b\u9501\u5b9a\u9608\u503c<\/td>\nVIN_MIN<\/td>\nVIN\u4e0a\u5347<\/td>\n3.6<\/td>\n3.8<\/td>\n4.0<\/td>\nV<\/td>\n<\/tr>\n
VIN\u4f4e\u7535\u538b\u9501\u5b9a\u6ede\u540e<\/td>\nVIN_MIN_HYST<\/td>\n<\/td>\n<\/td>\n200<\/td>\n<\/td>\nmV<\/td>\n<\/tr>\n
\u505c\u673a\u4f9b\u7535\u7535\u6d41<\/td>\nISD<\/td>\nVEN=0V<\/td>\n<\/td>\n<\/td>\n10<\/td>\n\u03bcA<\/td>\n<\/tr>\n
\u53cd\u9988\u53c2\u8003\u7535\u538b<\/td>\nVSEN<\/td>\nDDIM=100%<\/td>\n96<\/td>\n100<\/td>\n104<\/td>\nmV<\/td>\n<\/tr>\n
\u53cd\u9988\u6700\u5c0f\u53c2\u8003\u7535\u538b<\/td>\nVSEN_MIN<\/td>\nDDIM=1%<\/td>\n<\/td>\n3<\/td>\n<\/td>\nmV<\/td>\n<\/tr>\n
\u9876\u90e8\u5f00\u5173\u7535\u963b4\uff09<\/td>\nRDS(ON)T<\/td>\n<\/td>\n<\/td>\n85<\/td>\n<\/td>\nm\u03a9<\/td>\n<\/tr>\n
\u5e95\u90e8\u5f00\u5173\u7535\u963b4\uff09<\/td>\nRDS(ON)B<\/td>\n<\/td>\n<\/td>\n85<\/td>\n<\/td>\nm\u03a9<\/td>\n<\/tr>\n
\u9876\u90e8\u5f00\u5173\u6cc4\u6f0f\u7535\u6d41<\/td>\nILEAK_TOP<\/td>\nVIN=28V\uff0cVEN=0V\uff0cVSW=0V<\/td>\n<\/td>\n<\/td>\n1<\/td>\n\u03bcA<\/td>\n<\/tr>\n
\u5e95\u90e8\u5f00\u5173\u6cc4\u6f0f\u7535\u6d41<\/td>\nILEAK_BOT<\/td>\nVIN=28V\uff0cVEN=0V\uff0cVSW=28V<\/td>\n<\/td>\n<\/td>\n1<\/td>\n\u03bcA<\/td>\n<\/tr>\n
\u9876\u90e8\u5f00\u5173\u7535\u6d41\u9650\u52364\uff09<\/td>\nILIM_TOP<\/td>\n<\/td>\n2.8<\/td>\n3.5<\/td>\n4.2<\/td>\nA<\/td>\n<\/tr>\n
\u5e95\u90e8\u5f00\u5173\u7535\u6d41\u9650\u52364\uff09<\/td>\nILIM_BOT<\/td>\n<\/td>\n1.8<\/td>\n2.2<\/td>\n2.6<\/td>\nA<\/td>\n<\/tr>\n
\u00a0\u5f00\u5173\u9891\u7387<\/td>\nFSW<\/td>\n<\/td>\n450<\/td>\n600<\/td>\n750<\/td>\nkHz<\/td>\n<\/tr>\n
EN\/DIM\u9ad8\u8f93\u5165\u9608\u503c<\/td>\nVENH<\/td>\nVEN\u4e0a\u5347\uff0cDDIM\u22655%<\/td>\n1.5<\/td>\n<\/td>\n<\/td>\nV<\/td>\n<\/tr>\n
EN\/DIM\u4f4e\u8f93\u5165\u95e8\u69db<\/td>\nVENL<\/td>\nVEN falling<\/td>\n<\/td>\n<\/td>\n0.5<\/td>\nV<\/td>\n<\/tr>\n
PWM\u8c03\u5149\u5360\u7a7a\u6bd44)<\/td>\nDDIM<\/td>\n<\/td>\n1%<\/td>\n<\/td>\n100%<\/td>\n<\/td>\n<\/tr>\n
\u6700\u4f4e\u51c6\u65f6\u7387<\/td>\nTON-MIN<\/td>\n<\/td>\n<\/td>\n90<\/td>\n<\/td>\nns<\/td>\n<\/tr>\n
\u6700\u4f4e\u505c\u673a\u65f6\u95f4<\/td>\nTOFF-MIN<\/td>\n<\/td>\n<\/td>\n120<\/td>\n<\/td>\nns<\/td>\n<\/tr>\n
\u6700\u5927\u5360\u7a7a\u6bd4<\/td>\nDMAX<\/td>\n<\/td>\n90<\/td>\n93<\/td>\n<\/td>\n%<\/td>\n<\/tr>\n
\u70ed\u5173\u95ed4\uff09<\/td>\nTTSD<\/td>\n<\/td>\n<\/td>\n160<\/td>\n<\/td>\n\u00b0C<\/td>\n<\/tr>\n
\u70ed\u5173\u95ed\u6ede\u540e4\uff09<\/td>\nTTSD_HYST<\/td>\n<\/td>\n<\/td>\n30<\/td>\n<\/td>\n\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n

2\u3001\u4ea7\u54c1\u7279\u6027<\/b><\/strong><\/p>\n

    \n
  • 5V\u81f328V\u5de5\u4f5c\u8f93\u5165\u8303\u56f42A\u8f93\u51fa\u7535\u6d41<\/li>\n
  • \u9ad8\u8fbe94%\u7684\u6548\u7387<\/li>\n
  • @ Vin=12V, Vout=6V, ILED=2A<\/li>\n
  • 600 kHz\u5f00\u5173\u9891\u7387<\/li>\n
  • \u7535\u538b\u9501\u5b9a\u4e0b\u7684\u8f93\u5165<\/li>\n
  • \u542f\u52a8\u7535\u6d41\u635f\u8017\u4fdd\u62a4<\/li>\n
  • LED\u77ed\u8def\u4fdd\u62a4<\/li>\n
  • \u70ed\u4fdd\u62a4<\/li>\n
  • \u91c7\u7528SOT23-6\u5c01\u88c5<\/li>\n<\/ul>\n

    3\u3001\u5178\u578b\u5e94\u7528\u7535\u8def\u56fe<\/strong><\/p>\n

    \"HT4123\u5178\u578b\u5e94\u7528\u7535\u8def\u56fe\"<\/p>\n

    4\u3001\u7ba1\u811a\u56fe\u53ca\u529f\u80fd\u8bf4\u660e<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
    \n

    \"HT4123
    SOT23-6<\/figcaption><\/figure><\/td>\n
    		\u5f15\u811a\u540d<\/strong><\/td>\n\u5f15\u811a\u53f7<\/strong><\/td>\n\u529f\u80fd\u8bf4\u660e<\/strong><\/td>\n<\/tr>\n
    SEN<\/td>\n1<\/td>\nLED\u7535\u6d41\u611f\u5e94\u5f15\u811a\u3002<\/td>\n<\/tr>\n
    EN\/DIM<\/td>\n2<\/td>\n\u5f53\u8c03\u5149\u9891\u7387\u4e3a50 kHz\uff0c\u5360\u7a7a\u6bd4\u2265\u4e3a5%\u65f6\uff0c\u9a71\u52a8EN\/DIM\u9488\u811a\u9ad8\u4e8e1.5V\u7684\u9ad8\u7535\u538b\uff0c\u4f7fLED\u9a71\u52a8\u5668\u6b63\u5e38\u5de5\u4f5c\u3002\u4e0d\u540c\u8c03\u5149\u9891\u7387\u548c\u5360\u7a7a\u6bd4\u4e0bVENH\u7684\u63a8\u8350\u6700\u4f4e\u503c\u5982\u56fe4\u548c\u56fe5\u6240\u793a\u3002\u5f53\u4e00\u4e2a20 kHz\u7684~80 kHz\u5e94\u7528\u4e8eEN\/DIM\u5f15\u811a\u65f6\uff0c\u5185\u90e8\u53cd\u9988\u53c2\u8003\u4e0ePWM\u6210\u6b63\u6bd4\u8f93\u5165\u5360\u7a7a\u6bd4\u3002<\/td>\n<\/tr>\n
    GND<\/td>\n3<\/td>\n\u5730\u3002<\/td>\n<\/tr>\n
    VIN<\/td>\n4<\/td>\n\u8f93\u5165\u7535\u538b\u5f15\u811a\u3002VIN\u4e3a\u96c6\u6210\u7535\u8def\u63d0\u4f9b\u7535\u6e90\u3002\u5c06\u4e00\u4e2a4.5V\u523028V\u7684\u7535\u6e90\u8fde\u63a5\u5230VIN\u548c\u7528\u9002\u5f53\u7684\u5927\u7535\u5bb9\u5668\u65c1\u8defVIN\u5230GND\uff0c\u4ee5\u6d88\u9664\u96c6\u6210\u7535\u8def\u8f93\u5165\u7aef\u4e0a\u7684\u566a\u58f0\u3002<\/td>\n<\/tr>\n
    SW<\/td>\n5<\/td>\nSW\u662f\u4e3a\u8f93\u51fa\u7aef\u4f9b\u7535\u7684\u4ea4\u6362\u8282\u70b9\u3002\u8fde\u63a5\u8f93\u51faLC\u6ee4\u6ce2\u5668\u4ece\u897f\u5357\u5230\u8f93\u51fa\u8d1f\u8f7d\u3002<\/td>\n<\/tr>\n
    BST<\/td>\n6<\/td>\n\u9876\u90e8\u5f00\u5173\u7684\u5f15\u5bfc\u5f15\u811a\u3002\u8be5\u5f15\u811a\u548c\u897f\u5357\u5f15\u811a\u4e4b\u95f4\u5e94\u8fde\u63a5\u4e00\u4e2a0.1\u03bcF\u6216\u66f4\u5927\u7684\u7535\u5bb9\u5668\uff0c\u4e3a\u9876\u90e8\u5f00\u5173\u548c\u9876\u90e8\u5f00\u5173\u9a71\u52a8\u5668\u63d0\u4f9b\u7535\u6d41\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    5\u3001\u529f\u80fd\u7279\u8272<\/strong><\/p>\n

    \uff081\uff09\u7535\u6e90\u5f00\u5173<\/p>\n

    \uff082\uff09\u7535\u6d41\u6a21\u5f0f\u63a7\u5236<\/p>\n

    \uff083\uff09FCCM\u64cd\u4f5c<\/p>\n

    \uff084\uff09\u5173\u95ed\u6a21\u5f0f<\/p>\n

    \uff085\uff09PWM\u8c03\u5149\u6a21\u5f0f<\/p>\n

    \uff086\uff09\u8f93\u51fa\u7535\u6d41\u8fd0\u884c\u635f\u8017\u4fdd\u62a4<\/p>\n

    \uff087\uff09\u611f\u5e94\u9488\u77ed\u4fdd\u62a4<\/p>\n

    \uff088\uff09LED+\u548cLED-\u77ed\u8def\u4fdd\u62a4<\/p>\n

    \uff089\uff09LED+\u548cGND\u77ed\u4fdd\u62a4<\/p>\n

    \uff0810\uff09\u5f00\u8def\u4fdd\u62a4<\/p>\n

    \uff0811\uff09\u70ed\u4fdd\u62a4<\/p>\n<\/div>\n

    \n

     <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    HT4123\u662f\u4e00\u4e2a\u5f53\u524d\u6a21\u5f0f\u7684\u5355\u7247\u964d\u538bLED\u9a71\u52a8\u5668\u3002HT4123\u7684\u8f93\u5165\u8303\u56f4\u4e3a4.5V-28V\uff0c\u63d0\u4f9b2A\u7684\u4e24\u4e2a\u96c6\u6210\u7684n\u901a\u9053mosfet\u8fde\u7eed\u8f93\u51fa\u7535\u6d41\u3002\u5185\u90e8\u540c\u6b65\u7535\u6e90\u5f00\u5173\u63d0\u4f9b\u9ad8\u6548\u7387\uff0c\u800c\u4e0d\u4f7f\u7528\u5916\u90e8\u8096\u7279\u57fa\u4e8c\u6781\u7ba1\u3002\u5c06PWM\u4fe1\u53f7\u96c6\u6210\u7c7b\u6bd4\u8c03\u5149\u6a21\u5f0f\uff0c\u5b9e\u73b0\u53ef\u8c03\u5149\u7684LED\u7167\u660e\u5e94\u7528\u3002<\/div>\n","protected":false},"featured_media":4731,"template":"","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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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