参数资料
型号: FAN5346S20X
厂商: Fairchild Semiconductor
文件页数: 7/14页
文件大小: 0K
描述: IC LED DVR ASYNC SER BOOST 6SSOT
标准包装: 1
恒定电流:
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 通用
类型 - 次要: 白色 LED
频率: 950kHz ~ 1.35MHz
电源电压: 2.5 V ~ 5.5 V
输出电压: 6.2 V ~ 18.5 V
安装类型: 表面贴装
封装/外壳: SOT-23-6 细型,TSOT-23-6
供应商设备封装: 6-SSOT
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: FAN5346S20XDKR
Typical Characteristics
V IN = 3.6V, T A = 25 ° C, I LED = 25mA, L = 10μH, C OUT = 1.0μF, and C IN = 10.0μF.
90%
80%
70%
90%
80%
70%
60%
-40C
60%
-40C
50%
+25C
+85C
50%
+25C
+85C
2.5
3.0
3.5
4.0
4.5
2.5
3.0
3.5
4.0
4.5
Input Voltage (V)
Figure 10. Efficiency vs. Input Voltage vs. Temperature
for 5 LEDs in Series
0.2
0.1
Input Voltage (V)
Figure 11. Efficiency vs. Input Voltage vs. Temperature
for 7 LEDs in Series
1250
1200
0.0
1150
-0.1
-0.2
1100
-0.3
-40°C
+25°C
1050
-40°C
+25°C
-0.4
+85°C
1000
+85°C
2.5
3.0
3.5
4.0
4.5
2.5
3.0
3.5
4.0
4.5
Input Voltage (V)
Figure 12. Delta of V FB Over Input Voltage and
Temperature for 7 LEDs with L=10μH and C OUT =1.0μF
21.0
5 LEDs
L = 10μH
Input Voltage (V)
Figure 13. Frequency vs. Input Voltage vs. Temperature
31.5
7 LEDs
L = 10μH
20.5
20.0
19.5
19.0
18.5
C OUT = 1.0μF
I LED = 25mA
31.0
30.5
30.0
29.5
29.0
C OUT = 1.0μF
I LED = 25mA
2.5
3.0
3.5
4.0
4.5
2.5
3.0
3.5
4.0
4.5
Input Voltage (V)
Figure 14. OVP vs. Input Voltage: FAN5346S20X
? 2011 Fairchild Semiconductor Corporation
FAN5346 ? Rev. 1.0.1
7
Input Voltage (V)
Figure 15. OVP vs. Input Voltage: FAN5346S30X
www.fairchildsemi.com
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