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FM7124MBS Datasheet(PDF) 6 Page - SHENZHEN FUMAN ELECTRONICS CO., LTD.

Part # FM7124MBS
Description  LED power spotlight driver IC
PDF  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  FUMAN [SHENZHEN FUMAN ELECTRONICS CO., LTD.]
Direct Link  http://www.superchip.cn
Logo FUMAN - SHENZHEN FUMAN ELECTRONICS CO., LTD.

FM7124MBS Datasheet(HTML) 6 Page - SHENZHEN FUMAN ELECTRONICS CO., LTD.

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深圳市富满电子有限公司
SHENZHEN FUMAN ELECTRONICS CO., LTD.
FM7124MBS(文件编号:S&CIC1335)
LED 功率射灯驱动 IC
www.superchip.cn
6 页 共 9 页
Version 1.0
PCB设计
在设计
FM7124MBS PCB 板时,需要遵循以下指南: 旁路电容 VCC 的旁路电容需要紧靠芯片 VCC 和 GND 引脚。
地线
电流采样电阻的功率地线尽可能短,且要和芯片的地线及其它小信号的地线分头接到母线电容的地端。
功率环路的面积
减小功率环路的面积,如变压器主级、功率管及吸收网络的环路面积,以及变压器次级、次级二极管、输出电容
的环路面积,以减小
EMI 辐射。
NC 引脚
NC 引脚必须悬空以保证芯片引脚间距离满足爬电距离。
Drain 引脚
增加
Drain 引脚的铺铜面积以提高芯片散热。
典型应用电路图
FM7124MBS-12W (12W/250mA,输入全电压范围 85V~265V)
1
8
2
7
3
6
4
5
IC1
1
3
D1-D4
+
C1
10uF/400V
D6
ES1J
LED1
220V AC
220V AC
R2
200K 1206
R5
1.5R 1206
+
C2
4.7uF/25V
T1
+ C4
22uF/100V
R4
56K 0805
LED18
CS
DRAIN
GND
VCC
R1
200K 1206
D1
M7
R3
200K 1206
C3
1NF/250V 1206
1N4007
R7
200K 1206
R6
1.5R
1206
NC
FR1
0.5A 250V
Y1
1nF/1KV


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