参数资料
型号: NCP5604BMTR2G
厂商: ON Semiconductor
文件页数: 12/15页
文件大小: 0K
描述: IC DRIVER LED WHITE HE 16-WQFN
产品变化通告: Product Obsolescence 30/Jun/2011
标准包装: 1
拓扑: PWM,切换式电容器(充电泵)
输出数: 4
内部驱动器:
类型 - 主要: 背光,闪灯/白光
类型 - 次要: 白色 LED
频率: 850kHz ~ 1.15MHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 4.8 V ~ 6 V
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-QFN(3x3)
包装: 剪切带 (CT)
工作温度: -40°C ~ 85°C
其它名称: NCP5604BMTR2GOSCT
NCP5604A, NCP5604B
Figure 15. Startup Operation
Figure 17. Input Current Short Circuit Operation
SHORT CIRCUIT OPERATION
The circuit is designed to support a short circuit across
Vout and Ground without damage. When a short occurs, the
I out =100 mA
I out =80 mA
I out =60 mA
I out =40 mA I out =20 mA
pulsed output current increases to the maximum peak value
until the output voltage drops below 1 V. At this point, the
pulsed current is limited to 40 mA average (typical), until
the short is removed. The waveforms given in Figure 16
illustrate the functional operation. Similarly, the input
current is limited 300 mA peak (typical) as depicted in
Figure 17.
90
85
80
75
70
65
60
55
50
4.2
4.0
3.8
3.6
3.4
3.2
Vbat(V)
Figure 18. Typical Efficiency
Figure 16. Output Short Circuit Operation
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