ÑïÖݽÝÄܹâµç¿Æ¼¼×ÊѶ£º
ÈÕÇ°£¬µÂÖÝÒÇÆ÷ (TI Ðû²¼ÍƳöÒµ½ç×îС˫×éµÍѹ½µ (LDO ÎÈѹÆ÷£¬ÒÔÖ§³Ö¶àÖÖ±ãЯʽӦÓÃÖеķ¢¹â¶þ¼«¹Ü (LED ÕÕÃ÷£¬ÆäÖаüº¬Òƶ¯µÂÂÉ·ç¡¢µ¼º½ÏµÍ³¡¢MP3 ÒÔ¼°Ã½Ìå²¥·ÅÆ÷µÈ¡£¸Ã¿îÖ§³Ö¸ßÖÊÁ¿²ÊÉ«²¼¾°ÕÕÃ÷µÄÆ÷¼þ²ÉÈ¡ 1.2 ºÁÃ× %26times 1.2 ºÁÃ×΢СÐÍ·â×°£¬À˳±¼¯ÍÅÁÙÒʹâµç²úÒµ»ùµØÖ»Êǵ±Ç°¹úÄÚLED²úҵͶ×ÊÈȳ±ÖеÄÒ»¶äСÀË»¨¡£
TI TPS ÏßÐÔËÄͨµÀ LDO [¸ßÇåÎúͼƬÏÂÔØ]¾ß±¸Æ¥Åä LED µÄºã¶¨µçÁ÷Ô´£¬¿ÉÇý¶¯¶à´ïËĸö LED£¨Á½¸ö LED Ϊһ×飬¹²Á½×飩£¬Ã¿¸ö LED µÄºã¶¨µçÁ÷¾ùΪ 25mA£¨×îÄêÒ¹Öµ£©¡£È«²¿Í깤ºó½«³ÉΪȫ¹ú×î´óµÄ°ëµ¼ÌåÓ¦ÓÃÕÕÃ÷²úÒµ»ùµØ£¬¿É½«ÁÁ¶È´Ó·â±Õµ½È«²¿±äÁÁ (full brightness Ö®¼ä½øÐе÷¶È¡£Ö÷ÒªÌØÐÔ£º
%26middot ¾ß±¸ 2% LED µ½ LED Æ¥ÅäµÄµ÷¶ÈÊä³öµçÁ÷£»
%26middot ï®Àë×Óµç³ØÓ¦ÓÃÖС£
28mV µäÐÍѹ½µµçѹÀ©Õ¹ÁË¿ÉÓõçÔ´·¶Î§£»
%26middot ÎÞÐèÄÚ²¿¿ª¹ØÐźŠ%26mdash%26mdash Ïû³ý EMI£»
%26middot ¹ýÁ÷Óë¹ýαӻ¤¹¦ÄÜ£»
%26middot ĬÈ쵀 LED µçÁ÷¿É½ÚÁ÷Íⲿ×é¼þ¡£´ú¼ÛÓ빩»õÇé¿ö
TPS Óë TPS LED Çý¶¯Æ÷¾ùÖ§³Ö 3mA ¹¦ÂÊ£¬ÉîÛÚÊÐLED²úÒµÁªºÏ»áÌṩ¸øÉîÛÚÉ̱¨¼ÇÕßµÄ×ÊÁÏÏÔʾ¡£
¿Éͨ¹ý TI ¼°ÆäÈ«Çò·ÖÏúÉÌÍøÂç½øÐж©¹º¡£Á½ÖÖ LED Çý¶¯Æ÷¾ù²ÉÈ¡³¬Ð¡ÐÍ 9 º¸Çò 0.4 ºÁÃ׺¸Çò¼ä¾àоƬ¼¶·â×° (WCSP¡£ÅúÁ¿Îª 1,000 Ƭʱ£¬½¨ÒéÁãÊÛ×îµÍµ¥¼Û½öΪ 0.65 ÃÀÔª¡£¸ÃÏîÄ¿ÊÇÀ˳±¼¯Íųâ×Ê40ÒÚÔª´òÔìµÄ°ëµ¼ÌåÕÕÃ÷²úÒµ»ùµØµÄÖØÒª×é³É²¿·Ö£¬ÕÕÃ÷ÓëÏÔʾ½â¾ö·½°¸
TI Ìṩ×î·á¸»µÄ¸ßÐÔÄܲúƷϵÁУ¬ÒÔÂú×ãÄ¿Ç°°üº¬µçÔ´°ìÀíÔÚÄڵĸ÷Àà LED Éè¼ÆÒªÇó¡£
Èç AC/DC¡¢¹¦ÂÊÒòÊýУÕý¡¢DC/DC ÓëÏßÐÔµçԴת»»£»RF ÊÕ·¢Æ÷£»DSP Ó볬µÍ¹¦ºÄ MCU µÈ¡£TI ²úÆ·Ö§³Ö¶àÖÖÓ¦Óã¬LEDÆóÒµÕý³ÉΪÖÚ¶à²úÒµ¾ÞÍ·ºÍ·çͶ»ú¹¹ÕùÏàÊÕ¹ºµÄ¡°ÏãâÄâÄ¡±£¬ÁíÍ⣬TI ±¾µØÖ§³ÖÓëÓ¦ÓÃרҵÊÖÒÕ»¹ÄÜ°ïæÉè¼ÆÈËÔ±¼Ó¿ì²úÆ·ÉÏÊÐÀú³Ì¡£ ±¾ÐÅÏ¢ÓÉÑïÖݽÝÄܹâµç¿Æ¼¼ÓÐÏÞ¹«Ë¾ÎªÄúÌṩ£¬»¶ÓÔٴηÃÎÊwww.yzjnkj.com
ÎÒ¹«Ë¾ÆäËüÍøÖ·£ºwww.jnjrq.com www.jndg.net¡£
|