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参数资料
| 型号： | ADD5205ACPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHITE BCKLGT 12LFCSP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 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
SPECIFICATIONS
V IN = 3.7 V, SHDN = high, T A = ?25°C to +85°C, unless otherwise noted. Typical values are at T A = 25°C.
Table 1.
Data Sheet
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
SUPPLY
Input Voltage Range
Quiescent Current
Shutdown Supply Current
V IN
I Q
I SD
V IN = 2.8 V to 18 V, not switching
V IN = 2.8 V to 18 V, SHDN = 0 V
2.8
3.4
18
1
V
mA
μA
SWITCH
On Resistance
Switch Current Limit
Leakage Current
R DS(ON)
I CL
I LKG
I SW = 100 mA
0.3
1.9
1
Ω
A
μA
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
f OSC
D MAX
1
90
MHz
%
SOFT START
Soft Start Time 1
CURRENT SOURCE
1.5
ms
ISET Pin Voltage
V SET
1.26
V
C_FILTER Pin Voltage
Adjustable LED Current 1
V C_FILTER
I LED
Duty = 100%
0.22
25
V
mA
Constant Current Sink of 20 mA 2
Headroom Voltage of 20 mA 2
Current Matching Between Strings 2
LED Current Accuracy of 20 mA 2
I LED20
V HR20
R SET = 130 kΩ
R SET = 130 kΩ
I LED = 20 mA
I LED = 20 mA
19.6
?2
?3
20
0.66
20.6
+2
+3
mA
V
%
%
Current Source Leakage Current
SHUTDOWN CONTROL
1
μA
SHDN Voltage High
SHDN Voltage Low
V SHDN_HIGH
V SHDN_LOW
V IN = 2.8 V to 18 V
V IN = 2.8 V to 18 V
1.5
6
0.6
V
V
PWM Control
PWM Input Frequency Range 1
0.1
kHz
PWM Voltage High
PWM Voltage Low
V PWM_HIGH
V PWM_LOW
V IN = 2.8 V to 18 V
V IN = 2.8 V to 18 V
1.5
0.6
V
V
1
2
Guaranteed by design.
Tested at T A = 25°C.
Rev. 0 | Page 4 of 16
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