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2025-09-12 17:29

TMP1782

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TMP1782

ÓµÓÐ×ÔÊÊÓ¦·´À¡½ÚÔì (AFC) Ö°ÄÜ£¬Ï÷¼õϵͳµÄÈÈËðºÄ£¬¿É×î´óÏ޶ȵØÌá¸ßϵͳЧÄÜ¡£ÆäÇ°¶ËµÄ½µÑ¹ÎÈѹÆ÷µÄÊä³öµçѹ¿Éʵʱµ÷Õû£¬ÒÔʹͨ·Éϵĵçѹά³ÖÔڼķÅÆ÷É趨µÄˮƽÉÏ£¬Èç200mAʱ¾»¿Õµçѹ300mV¡£

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TMP1782

ÓµÓÐÓÅÁ¼µÄÎÂÉý²û·¢£¬³£ÎÂTa= 25¡æ£¬Pd=3.04W£¬ÎÂÉý½ö64.4¡æ¡£²âÊÔÇ°Ì᣺Ta= 25¡æ£¬VP& EN = 6.5V, ISET = 200mA(3k?),  VLED1 ¨P 0.95V£¬TMP1782´îÔØÔÚEVBÉÏ¡£

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1.VLED1~16 = 0.625V, ILED = 3.2A£¬Pd=0.625V * 3.2A = 2.00W

2.VLED1~16 = 0.9375V, ILED = 3.2A£¬Pd=0.9375V * 3.2A = 3.00W

3.VLED1~16 = 1.25V, ILED = 3.2A£¬Pd=1.25V * 3.2A = 4.00W

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