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NCP5007
Typical LEDs Load Mapping
Since the output power is battery limited (see Figure 5),
one can arrange the LEDs in a variety of different
50 mA
configurations. Powering ten LEDs can be achieved by a
series/parallel combination as depicted in Figure 31.
75 mA
Load
Load
D1
LED
D5
LED
D1
LED
D3
LED
D5
LED
D7
LED
D9
LED
D2
D6
LED
LED
D2
LED
D4
LED
D6
LED
D8
LED
D10
LED
D3
D7
LED
D4
LED
LED
D8
LED
Sense
Resistor
R1
2.7 W
GND
60 mA
Sense
Resistor
R1
3.9 W
Load
D1
LED
D4
LED
D7
LED
D10
LED
D13
LED
GND
D2
LED
D5
LED
D8
LED
D11
LED
D14
LED
Test conditions: V bat = 3.6 V
L out = 22 m H
C out = 1.0 m F
D3
LED
D6
LED
D9
LED
D12
LED
D15
LED
Sense
Resistor
R1
3.3 W
GND
Figure 31. Examples of Possible LED Arrangements
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相关代理商/技术参数
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功能描述:LED照明驱动器 White LED Backlight Boost RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
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制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:AC-DC Offline Switching Controllers/Regulators
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制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:White LED Driver
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制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Backlight LED Boost Driver
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功能描述:LED照明驱动器 15V Output Max LED RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
NCP5008DMR2G
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功能描述:IC LED DRVR WHT BCKLT 10MICROSMD RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:1 系列:- 恒定电流:- 恒定电压:- 拓扑:PWM，切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:642kHz 电源电压:2.7 V ~ 5.5 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘 供应商设备封装:10-VSON 包装:剪切带 (CT) 工作温度:-30°C ~ 85°C 产品目录页面:1371 (CN2011-ZH PDF) 其它名称:BD1603NUV-E2CT
