led屏电路中常见IC分析：

初识LED显示屏的朋友对LED大屏幕常用的IC摸不着北，本人就对常见IC做个简单汇总，方便大家参考，如有错误，及时提出，以免误导：
74HC245的作用：信号功率放大，双向3态数据缓冲器（不带锁存），就是给低输出能力的芯片提供高带载能力.
74HC138的作用：八位二进制译十进制译码器
4953的作用：行驱动管，功率管
74HC595的作用：列驱动管，LED驱动芯片，8位移位锁存器（主用室内单元板）
台湾聚积MBI5024, MBI5026, 日本东芝TB62726,菲力普16126的作用：LED驱动芯片，16位移位锁存器（主要用于室外模组）；其功能与74HC595相似，只是TB62726是16位移位锁存器，并带输出电流调整功能，但在并行输出口上不会出现高电平，只有高阻状态和低电平状态。74HC595并行输出口有高电平和低电平输出,TB62726与5026的引脚功能一样，结构相似。
这些IC在LED显示屏系统结构图如下：
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image1.jpg
希望对大家有用！！


另外想问版主如何才能成为会员？

[whitepad]***400;200;400,200;;** m24,37 l25,36,28,34,30,32,43,32,44,33 e|********* m18,63 l21,61,23,60,24,59,28,57,30,57,33,55,34,54,38,53,39,52,40,52,41,53,41,61,40,62,39,66,37,71,36,72,33,76,33,78,31,83,30,87 30,92,28,100,28,110,29,110,30,111,35,111,37,110,41,107,44,104,45,104,47,103,47,102,48,102,52,98,53,96,53,94 e|********* m50,49 l52,46,55,43,59,40,60,38,63,36,65,35,66,34,67,34,69,32,70,32,71,31,71,30 e|********* m66,41 l65,43,65,48,63,54,62,59,62,65,61,69,60,71,59,75,58,77,58,93 e|********* m53,55 l54,54,55,52,59,51,60,50,66,50,68,49,70,47,93,47,95,48,97,48,98,50,99,51,99,52,100,54,100,74,99,79,98,80,98,85,97,88,96,90 96,94,95,98,94,99,94,107,93,109,91,117,89,120,89,122,88,126,85,132,85,133,83,135,81,138,80,139,78,144,76,145,74,149,68,155,68,157,67,157 66,158,65,158,62,155,60,151,58,148,57,145,57,127,54,118,53,116,53,114,52,110 e|********* m69,63 l71,63,75,64,81,64,82,65,84,66,85,66,86,67,88,68,89,68,91,70,92,70 e|********* m68,66 l69,67,71,68,72,69,74,70,75,72,76,73,78,74,79,74,80,75,80,76,82,76,85,78,86,78,91,83,92,83 e|********* m36,104 l37,103,41,100,42,100,54,94,58,91,63,89,64,89,66,88,69,87,70,87,71,86,73,85,76,84,77,83,79,82,80,82,81,80,83,79,83,78,84,78 85,77 e|********* m101,76 l103,75,104,73,105,73,110,71,111,70,115,68,117,66,118,66,121,63,123,63,127,59,129,59,130,58,132,57,134,55,141,55,142,54 e|********* m126,34 l127,35,129,39,132,44,134,48,135,53,136,55,136,60,138,65,139,66,139,85,140,90,140,106,139,107,136,113,136,116,134,118,133,118,132,119,129,120,126,120 125,119,122,117,120,117,119,115,117,114,116,112,115,112,113,110,113,109,112,107,110,105,110,103,109,100,108,99,108,98,107,96,107,95 e|********* m109,86 l114,86,116,88,118,88,120,90,121,90,122,91 e|********* m175,72 l171,72,169,74,167,75,166,76,165,78,164,81,164,87,165,89,166,90,169,91,173,93,174,93,178,97,180,97,183,99,184,100,191,100,192,99,193,97,194,94 195,93,195,90,194,87,192,85,192,83,191,82,190,80,190,79,189,78,188,76,188,75,187,74,186,74,186,73,178,73 e|********* m201,85 l202,84,203,84,207,83,213,80,214,80,219,77,221,75,223,74,224,73,225,71,226,70,226,69,227,67,227,60,226,59,225,57,225,56,224,55,223,53,222,52 222,66,224,68,225,73,226,76,226,86,227,91,227,95,228,96,228,106,229,107,229,110,230,111,230,117,228,116,225,114,224,114,220,111,219,110,218,110,216,109 216,108,215,106,214,105,214,104,212,100,212,94,214,92,214,90,216,89,217,87,219,86,220,85,221,85,223,84,234,84,236,83 e|********* m238,38 l239,37,254,37,261,40,267,42,272,44,278,47,281,49,284,52,286,53,287,55,289,56,289,57,290,59,291,60,291,61,290,62 e|********* m245,76 l246,77,263,77,270,76,278,73,286,72,293,71,299,71,302,70,303,69,305,68,306,67,305,67,304,69,300,72,297,77,295,78,289,88,284,93,281,98,280,99 277,103,277,104,276,105,275,107,274,108,274,112 e|********* m303,85 l301,87,300,89,298,90,297,91,294,95,294,96,292,97,291,99,289,100,288,102,287,102,285,103,284,104,281,105,279,106,278,107,277,107 e|********* m251,110 l306,110,307,109,312,107,313,106,314,106,316,105,320,101,320,100,321,100,321,99 e|********* m358,51 l358,52,360,56,361,60,361,64,360,69,358,73,356,78,355,79,354,83,351,87,350,88,349,90,345,94,345,95,344,97,343,98,341,99,341,101,340,101,339,102 e|********* m337,117 l335,118,327,126,326,126 e[/whitepad]

学习了啊。。。谢谢啊

多谢，有心人。。。。。。。。。。。。。。。。。。。。。。

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学习了啊。。。谢谢啊——本文来自〖www.521LED.com〗原帖地址：http://www.521led.com/viewthread.php?tid=1764&fromuid=3647

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