参数资料
型号: ADD5205ACPZ-RL
厂商: Analog Devices Inc
文件页数: 8/16页
文件大小: 0K
描述: IC LED DVR WHITE BCKLGT 12LFCSP
标准包装: 1
恒定电流:
拓扑: PWM,升压(升压)
输出数: 4
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 1MHz
电源电压: 2.8 V ~ 18 V
安装类型: 表面贴装
封装/外壳: 12-WFQFN 裸露焊盘,CSP
供应商设备封装: 12-LFCSP-WQ(3x3)
包装: 标准包装
工作温度: -25°C ~ 85°C
其它名称: ADD5205ACPZ-RLDKR

ADD5205
TYPICAL PERFORMANCE CHARACTERISTICS
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5
Data Sheet
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0
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INPUT VOLTAGE (V)
Figure 4. Boost Converter Efficiency vs. Input Voltage,
I LED = 20 mA, Brightness = 100%, and LEDs = 6 Series × 4 Parallel
30
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20
15
10
5
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5
0
–5
–10
–15
INPUT VOLTAGE (V)
Figure 7. LED Current vs. Input Voltage (I LED = 22 mA)
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–20
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18
R SET (k ? )
Figure 5. LED Current (I LED ) vs. R SET
PWM INPUT DUTY CYCLE (%)
Figure 8. LED Current Matching vs. PWM Input Duty Cycle
V OUT (10V/DIV)
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V SW (10V/DIV)
SHDN (3V/DIV)
I L (500mA/DIV)
0
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V IN = 3.7V
BRIGHTNESS = 100%
A CH3
6 SERIES x 4 PARALLEL
960mV
PWM INPUT DUTY CYCLE (%)
Figure 6. LED Current vs. PWM Input Duty Cycle
Rev. 0 | Page 8 of 16
Figure 9. Start-Up Waveforms (Brightness = 100%)
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