{"id":4479,"date":"2024-06-06T15:35:52","date_gmt":"2024-06-06T07:35:52","guid":{"rendered":"https:\/\/www.hotchip.com.cn\/?post_type=product&p=4479"},"modified":"2024-08-13T17:39:58","modified_gmt":"2024-08-13T09:39:58","slug":"ht2800s","status":"publish","type":"product","link":"https:\/\/www.hotchip.com.cn\/ht2800s\/","title":{"rendered":"\u9ad8\u6027\u80fd\u4e00\u6b21\u4f20\u611f\u8c03\u8282\u5668\uff08PSR\uff09HT2800S"},"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\u3002HT2800S\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 Ib=10mA<\/td>\n 2\u3001\u4ea7\u54c1\u7279\u6027<\/strong><\/p>\n 3\u3001\u5178\u578b\u5e94\u7528\u7535\u8def\u56fe<\/strong><\/p>\n <\/p>\n 4\u3001\u7ba1\u811a\u56fe\u53ca\u529f\u80fd\u8bf4\u660e<\/b><\/strong><\/p>\n\n\n
\n Parameter<\/strong><\/td>\n Symbol<\/strong><\/td>\n Conditions<\/strong><\/td>\n Min.<\/strong><\/td>\n Typ.<\/strong><\/td>\n Max<\/strong><\/td>\n Unit<\/strong><\/td>\n<\/tr>\n \n VDD UVLO Section<\/td>\n<\/tr>\n \n Start- up Voltage<\/td>\n VCC-ON<\/td>\n –<\/td>\n 7.5<\/td>\n 8.0<\/td>\n 8.8<\/td>\n V<\/td>\n<\/tr>\n \n Shut down<\/td>\n VCC-OFF<\/td>\n –<\/td>\n 3.0<\/td>\n 3.3<\/td>\n 3.5<\/td>\n V<\/td>\n<\/tr>\n \n Star-up Current<\/td>\n ISTART<\/td>\n –<\/td>\n –<\/td>\n 0.2<\/td>\n 1<\/td>\n uA<\/td>\n<\/tr>\n \n Operating Current<\/td>\n ICC<\/td>\n <\/td>\n –<\/td>\n 400<\/td>\n 500<\/td>\n uA<\/td>\n<\/tr>\n \n Max. Operating Voltage<\/td>\n VCC<\/td>\n –<\/td>\n –<\/td>\n –<\/td>\n 8.5v<\/td>\n <\/td>\n<\/tr>\n \n Current Sense Section<\/td>\n<\/tr>\n \n Maximum Current to CS PIN<\/td>\n ICS<\/td>\n –<\/td>\n 3.4<\/td>\n 4<\/td>\n 5<\/td>\n uA<\/td>\n<\/tr>\n \n Current Sense Threshold Voltage<\/td>\n VCS<\/td>\n <\/td>\n <\/td>\n <\/td>\n 510<\/td>\n mV<\/td>\n<\/tr>\n \n Leading Edge Blanking<\/td>\n TLEB<\/td>\n Ic\uff1d1mA<\/td>\n <\/td>\n 500<\/td>\n –<\/td>\n nS<\/td>\n<\/tr>\n \n Feedback Input Section<\/td>\n<\/tr>\n \n FB Reference Voltage<\/td>\n VREF-FB<\/td>\n <\/td>\n 2.85<\/td>\n 2.9<\/td>\n 2.95<\/td>\n V<\/td>\n<\/tr>\n \n Input Resistance of FB Pin<\/td>\n RFB<\/td>\n <\/td>\n 1.2<\/td>\n 1.5<\/td>\n 2<\/td>\n M\u03a9<\/td>\n<\/tr>\n \n Feedback Threshold Voltage<\/td>\n VFB<\/td>\n <\/td>\n <\/td>\n <\/td>\n 5<\/td>\n V<\/td>\n<\/tr>\n \n Internal Transistor<\/td>\n<\/tr>\n \n Collector- Emitter Saturation Voltage<\/td>\n VCEsat<\/td>\n Ic\uff1d50mA<\/p>\n <\/td>\n <\/td>\n 0.5<\/td>\n V<\/td>\n<\/tr>\n \n Collector- Base Voltage<\/td>\n VCBO<\/td>\n <\/td>\n 700<\/td>\n <\/td>\n <\/td>\n V<\/td>\n<\/tr>\n \n OVER TEMPERATURE PROTECTION(OTP)<\/td>\n<\/tr>\n \n Shutdown Temperature<\/td>\n TSHDN<\/td>\n <\/td>\n 135<\/td>\n 140<\/td>\n 145<\/td>\n \u2103<\/td>\n<\/tr>\n \n Temperature Hysteresis<\/td>\n THYS<\/td>\n <\/td>\n 125<\/td>\n 130<\/td>\n 135<\/td>\n \u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n
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