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Rohm¹«Ë¾µÄBD83A04EFV-MÊÇÄÚÖÃMOSÓÃÓÚÉýѹ,ÉýѹDC/DCת»»Æ÷µÄ4·°×¹âLEDÇý¶¯Æ÷,·Ç³£ÊÊÓÃÓÚÆû³µµÄ¸ßÁÁ¶ÈLEDÇý¶¯.LEDÒý½Å×î´óµçѹΪ50V,ÊÊÓÃÓÚÇý¶¯ÖеÈLCDÃæ°å.LEDµ÷¹âÓÉPWMÐźÅËù¿ØÖÆ,¿ÉÒÔÉ趨¸ß´ï20,000: [email protected] Hz.Æ÷¼þ»¹Ö§³ÖÄ£Äâµ÷¹â,ºÍPWMµ÷¹â×éºÏÄÜÈÝÄɸü¸ßÁÁ¶ÈµÄ·¶Î§.DC/DCת»»Æ÷ÓÉÉýѹӦÓÿØÖÆ,ÊäÈ빤×÷µçѹ·¶Î§´Ó4.5Vµ½48V.Æ÷¼þÂú×ãAEC-Q100×ÊÖÊ,°²È«¹¦ÄÜÖ§³ÖÆû³µ²úÆ·,ÄÚÖÃ4·µçÁ÷Çý¶¯Æ÷ÓÃÓÚLEDÇý¶¯,ÄÚÖõÄMOSÓÃÓÚÉýѹ,µçÁ÷ģʽÉýѹDC/DCת»»Æ÷,DC/DCת»»Æ÷Õñµ´ÆµÂÊÍⲿͬ²½¹¦ÄÜ,LSI±£»¤¹¦ÄÜ(UVLO, OVP, TSD, OCP).Êä³öLEDµçÁ÷¾ø¶Ô¾«¶ÈΪ¡À5.0 [email protected] mA, Ta = -40 ¡ãC to +125 ¡ãC.DC/DCת»»Æ÷Õñµ´ÆµÂÊΪ200 kHz µ½ 2420 kHz,¹¤×÷ζÈ-40 ¡ãC µ½ +125 ¡ãC,ÿ·LED×î´óµçÁ÷Ϊ120mA.²ÉÓÃ7.8 mm x 7.6 mm x 1.0 mm HTSSOP-B24·â×°.Ö÷ÒªÓÃÔÚÆû³µCID(ÖÐÐÄÐÅÏ¢ÏÔʾÆ÷)ÆÁ,µ¼º½,ÒDZíÅÌ,HUD(ƽÊÓÏÔʾÆ÷)ºÍÆäËüÖÐСÐÍÆû³µLCDÆÁ.±¾ÎĽéÉÜÁËBD83A04EFV-MÖ÷ÒªÌØÐÔºÍÖ¸±ê,¿òͼºÍÉýѹӦÓõç·¿òͼ, PCBÓ¦Óõç·¿òͼ¼°ÆäÍâ½ÓÔª¼þÁбí, ÆÀ¹À°åREFLED002-EVK-001Ö÷ÒªÌØÐÔ,µç·ͼ,²ÄÁÏÇåµ¥ºÍPCBÉè¼ÆÍ¼.

 

This IC is a white LED driver for LCD backlight. It has MOS for boost and 4 ch current drivers for LED drive, making it ideal for high brightness LED drive. LED pin maximum voltage is 50 V, making it suitable for driving medium LCD panels.

The dimming is controlled by the PWM signal and can be set up to 20,000: [email protected] Hz. It also supports analog dimming and can accommodate even higher brightness ranges by combining with PWM dimming. DC/DC converters can be controlled for boost applications, and the input operating voltage range is 4.5 V t..

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