{"id":4483,"date":"2024-06-06T15:50:27","date_gmt":"2024-06-06T07:50:27","guid":{"rendered":"https:\/\/www.hotchip.com.cn\/?post_type=product&p=4483"},"modified":"2025-02-10T11:07:06","modified_gmt":"2025-02-10T03:07:06","slug":"ht2812h","status":"publish","type":"product","link":"https:\/\/www.hotchip.com.cn\/ht2812h\/","title":{"rendered":"\u9ad8\u6027\u80fd\u4e00\u6b21\u4f20\u611f\u8c03\u8282\u5668\uff08PSR\uff09HT2812H"},"content":{"rendered":"

\u5185\u7f6e\u7cbe\u786e\u7684CV\/CC\u63a7\u5236\u7535\u8def\u3002\u9ad8\u96c6\u6210\u8bbe\u8ba1\uff0c\u9ad8\u6027\u80fd\u529f\u7387BJT\u548cPFM\u63a7\u5236\u5668\uff0c\u5355\u7247\u673a\u5168\u4fdd\u62a4\u7535\u8def\uff0c\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u5916\u90e8\u7ec4\u4ef6\uff0c\u6709\u6548\u5730\u8282\u7701\u6210\u672c\u3002HT2812H\u53ef\u4ee5\u7b80\u5355\u5730\u8bbe\u8ba1\u4e3a\u4e00\u4e2a\u5178\u578b\u7684\u53cd\u5f39\u5f0f\u5f00\u5173\u8f6c\u6362\u5668\uff0c\u5176\u72ec\u7279\u7684\u9a71\u52a8\u6280\u672f\u4fc3\u8fdb\u4e86\u8010\u538b\u7279\u6027\uff0c\u5b9e\u73b0\u4e86\u4f18\u5f02\u7684\u8f6c\u6362\u6548\u7387\u3002\u8be5\u8bbe\u5907\u53ef\u91c7\u7528SOP7\u6807\u51c6\u8fdb\u884c\u5305\u88c5\u3002<\/p>\n

1\u3001\u89c4\u683c\u53c2\u6570<\/strong><\/p>\n

\uff08\u9664\u975e\u53e6\u6709\u89c4\u5b9a\uff0c\u5426\u5219\u5728\u5ba4\u6e29\u4e0b\u901a\u8fc7\u5c06GND\u7535\u4f4d\u8bbe\u7f6e\u4e3a\u96f6\u7535\u4f4d\u6765\u6d4b\u91cf\u53c2\u6570\u3002\uff09<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/strong><\/td>\nSymbol<\/strong><\/td>\nConditions<\/strong><\/td>\nMin<\/strong><\/td>\nType<\/strong><\/td>\nMax<\/strong><\/td>\nUnit<\/strong><\/td>\n<\/tr>\n
VCC UVLO<\/td>\n<\/tr>\n
Star-up Voltage<\/td>\nVCC-ON<\/td>\n<\/td>\n7.5<\/td>\n8.0<\/td>\n8.8<\/td>\nV<\/td>\n<\/tr>\n
Shut down<\/td>\nVCC\u00a0OFF<\/td>\n<\/td>\n3.0<\/td>\n3.3<\/td>\n3.5<\/td>\nV<\/td>\n<\/tr>\n
Star-up Current<\/td>\nIStar<\/td>\n<\/td>\n<\/td>\n0.8<\/td>\n3<\/td>\nuA<\/td>\n<\/tr>\n
Operating Current<\/td>\nICC<\/td>\nStatic current<\/td>\n<\/td>\n400<\/td>\n600<\/td>\nuA<\/td>\n<\/tr>\n
Max. Operating Voltage<\/td>\nVCC- MAX<\/td>\n<\/td>\n<\/td>\n<\/td>\n9<\/td>\nV<\/td>\n<\/tr>\n
CURRENT SENSE SECTION<\/td>\n<\/tr>\n
Maximum Current to CS PIN<\/td>\nICS<\/td>\n<\/td>\n3.4<\/td>\n4<\/td>\n5<\/td>\nuA<\/td>\n<\/tr>\n
Current Sense\u00a0Threshold Voltage<\/td>\nVCS<\/td>\n<\/td>\n<\/td>\n<\/td>\n510<\/td>\nmV<\/td>\n<\/tr>\n
Leading Edge Blanking<\/td>\nTLEB<\/td>\nIc\uff1d1mA<\/td>\n<\/td>\n500<\/td>\n<\/td>\nnS<\/td>\n<\/tr>\n
FEED BACK INPUT SECTION<\/td>\n<\/tr>\n
FB Reference Voltage<\/td>\nVREF- FB<\/td>\n<\/td>\n2.85<\/td>\n2.9<\/td>\n2.95<\/td>\nV<\/td>\n<\/tr>\n
Input Resistance of\u00a0FB Pin<\/td>\nRFB<\/td>\n<\/td>\n1.2<\/td>\n1.5<\/td>\n2<\/td>\nM\u03a9<\/td>\n<\/tr>\n
Feedback Threshold Voltage<\/td>\nVFB- MAX<\/td>\n<\/td>\n<\/td>\n<\/td>\n5<\/td>\nV<\/td>\n<\/tr>\n
POWER BJT SECTION<\/td>\n<\/tr>\n
Collector-emitter Saturation Voltage<\/td>\nVCE\u00a0sat<\/td>\nIc\uff1d500mA<\/p>\n

Ib\uff1d100mA<\/td>\n

<\/td>\n<\/td>\n0.5<\/td>\nV<\/td>\n<\/tr>\n
Collector-Base Voltage<\/td>\nVCBO<\/td>\n<\/td>\n<\/td>\n850<\/td>\n<\/td>\nV<\/td>\n<\/tr>\n
OVER TEMPERATURE PROTECTION(OTP)<\/td>\n<\/tr>\n
Shutdown Temperature<\/td>\nTSHDN<\/td>\n<\/td>\n135<\/td>\n140<\/td>\n145<\/td>\n\u2103<\/td>\n<\/tr>\n
Temperature Hysteresis<\/td>\nTHYS<\/td>\n<\/td>\n125<\/td>\n130<\/td>\n135<\/td>\n\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

    \n
  • \u5185\u7f6e850V\u529f\u7387BJT\uff1b<\/li>\n
  • PSR\u63a7\u5236\uff0c\u6d88\u9664\u4e86\u5149\u8026\u5408\u5668\u548cTL431\uff1b<\/li>\n
  • \u51c6\u786e\u7684CV\/CC\u63a7\u5236\uff1b<\/li>\n
  • \u6ede\u540e\u8fc7\u6e29\u4fdd\u62a4\uff08OTP\uff09\u7535\u8def\uff1b<\/li>\n
  • \u6548\u7387\u66f4\u9ad8\uff0c\u7b26\u54086\u7ea7\u6548\u7387\u6807\u51c6\uff1b<\/li>\n
  • \u8f93\u51fa\u7535\u538b\u4fdd\u62a4\uff08OVP\/UVP\uff09\uff1b<\/li>\n
  • < 100 mW\u7a7a\u8f7d\u6d88\u8017\u91cf\uff1b<\/li>\n
  • \u81ea\u52a8\u91cd\u65b0\u542f\u52a8\u529f\u80fd\uff1b<\/li>\n
  • \u8d85\u4f4e\u542f\u52a8\u7535\u6d41\uff1b<\/li>\n
  • \u826f\u597d\u7684EMC\u7279\u6027\u5141\u8bb8\u7b80\u5355\u7684EMC\u7535\u8def\u3002<\/li>\n<\/ul>\n

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

    \"HT2812H\u5178\u578b\u5e94\u7528\u7535\u8def\u56fe\"<\/p>\n

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

    \"HT2812H
    SOP5<\/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
    VCC<\/td>\n1<\/td>\n\u63a7\u5236\u5668\u7684\u7535\u6e90\u4f9b\u5e94\u9500\uff0c\u4e3a\u4e86\u4f7f\u63a7\u5236\u5668\u589e\u76ca\u66f4\u591a\u7535\u6e90\u7535\u538b\u7a33\u5b9a\uff0c\u5916\u90e8\u6ee4\u6ce2\u5668\u7535\u5bb9\u5668\u5fc5\u987b\u4f7f\u7528\u4f4e\u7b49\u6548im-\u7535\u89e3\u7535\u5bb9\u5668\u7684\u963b\u7387\uff08\u4f4eESR)\u3002<\/td>\n<\/tr>\n
    FB<\/td>\n2<\/td>\n\u8f93\u51fa\u53cd\u9988\u5f15\u811a\uff0c\u901a\u8fc7\u53d8\u538b\u5668\u7684\u8f85\u52a9\u7ed5\u7ec4\u7535\u538b\u68c0\u6d4b\u8f93\u51fa\u60c5\u51b5\u3002<\/td>\n<\/tr>\n
    CS<\/td>\n3<\/td>\n\u8fde\u63a5\u5916\u90e8\u4e00\u6b21\u7535\u6d41\u611f\u5e94\u7535\u963b\uff08Rcs\uff09\uff0cIC\u53ef\u4ee5\u68c0\u6d4b\u4e00\u6b21\u7535\u6d41\u901a\u8fc7\u5916\u90e8\u611f\u5e94\u7535\u963b\u3002\u5f53\u7535\u963b\u5668\u4e0a\u7684\u7535\u538b\u8d85\u8fc7\u65f6\u6700\u5927\u503c\uff0c\u5185\u90e8\u7535\u6e90BJT\u5c06\u7acb\u5373\u5173\u95ed\u3002<\/td>\n<\/tr>\n
    HV<\/td>\n4<\/td>\n\u5185\u529f\u7387\u6676\u4f53\u7ba1\u7684\u96c6\u7535\u6781\u3002<\/td>\n<\/tr>\n
    GND<\/td>\n5<\/td>\n\u5730<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

    \uff081\uff09 \u6052\u538b\u8fd0\u884c
    \n\uff082\uff09 \u6052\u6d41\u64cd\u4f5c
    \n\uff083\uff09 \u8f93\u51fa\u7535\u7f06\u8865\u507f
    \n\uff084\uff09 \u4fdd\u62a4\u529f\u80fd
    \n\uff085\uff09 \u5178\u578b\u5e94\u7528\u7535\u8def<\/p>\n

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

    HT2812H\u9002\u7528\u4e8e\u5145\u7535\u5668\u3001\u5c0f\u578b\u7535\u5668\u3001\u8f85\u52a9\u7535\u6e90\uff0c\u662f\u9ad8\u6027\u80fd\u4e00\u6b21\u4f20\u611f\u8c03\u8282\u548c\u5355\u7247\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u63a7\u5236\u5668\uff0c\u8bbe\u8ba1\u9002\u7528\u4e8e\u5177\u6709\u7535\u6d41\u6a21\u5f0f\u63a7\u5236\u7684\u5c0f\u578b\u7535\u6e90\u8bbe\u5907\u3002<\/div>\n","protected":false},"featured_media":4486,"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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content=\"\u6df1\u5733\u534e\u82af\u90a6\u79d1\u6280\u4e13\u4e1a\u751f\u4ea7\u4e00\u6b21\u4f20\u611f\u8c03\u8282\u5668IC\u82af\u7247\uff08PSR\uff09SOP5 HT2812H\uff0c\u81f4\u529b\u4e8e\u63d0\u4f9b\u9ad8\u54c1\u8d28\u3001\u53ef\u9760\u7684\u4ea7\u54c1\uff0c\u6ee1\u8db3\u5ba2\u6237\u9700\u6c42\uff0c\u5f15\u9886\u884c\u4e1a\u53d1\u5c55\uff0c\u66f4\u591a\u5408\u4f5c\u7ec6\u8282\u6b22\u8fce\u81f4\u75350755-88844476\" \/>\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.hotchip.com.cn\/ht2812h\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u9ad8\u6027\u80fd\u4e00\u6b21\u4f20\u611f\u8c03\u8282\u5668IC\u82af\u7247\uff08PSR\uff09SOP5 HT2812H -\u534e\u82af\u90a6\u5b98\u7f51\" \/>\n<meta property=\"og:description\" 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