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CAT4134HV2 参数 Datasheet PDF下载

CAT4134HV2图片预览
型号: CAT4134HV2
PDF下载: 下载PDF文件 查看货源
内容描述: 500毫安双通道电影/闪光灯LED驱动器 [500mA Dual Channel Movie/Flash LED Driver]
分类和应用: 显示驱动器驱动程序和接口接口集成电路闪光灯
文件页数/大小: 13 页 / 321 K
品牌: CATALYST [ CATALYST SEMICONDUCTOR ]
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CAT4134  
TYPICAL CHARACTERISTICS  
VIN = 3.6V, FLASH = VIN, CIN = 4.7µF, COUT = 10µF, L = 22µH with 2 LEDs at 100mA, TAMB = 25ºC, unless  
otherwise specified.  
LED Current Regulation (200mA load, Flash)  
LED Current Regulation (100mA load)  
2.0  
1.5  
1.0  
0.5  
0.0  
2.0  
1.5  
1.0  
1 LED  
0.5  
0.0  
2 LEDs  
2 LEDs  
-0.5  
-0.5  
-1.0  
-1.5  
-2.0  
-1.0  
-1.5  
-2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
2.5  
3.0  
3.5  
4.0  
4.5  
INPUT VOLTAGE [V]  
INPUT VOLTAGE [V]  
Current Gain vs. RFLASH  
LED Current Regulation (100mA load, Flash)  
2.0  
1900  
1.5  
2 LEDs  
VIN= 3.6V  
1850  
1800  
1750  
1700  
1650  
1600  
2 LEDs at 100mA  
1.0  
0.5  
0.0  
-0.5  
-1.0  
-1.5  
-2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
0
50  
100  
Rflash [kohm]  
150  
200  
INPUT VOLTAGE [V]  
Efficiency vs. Output Current (Flash mode)  
Efficiency vs. Input Voltage (Flash mode)  
90  
90  
80  
70  
80  
70  
60  
60  
VIN = 3.6V  
2 LEDs at 100mA  
50  
2 LEDs  
50  
40  
40  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
0
50  
100  
150  
200  
250  
INPUT VOLTAGE [V]  
TOTAL LED CURRENT [mA]  
Doc. No. 5021 Rev. A  
4
© 2006 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice.