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| 型号： | AS3685C-T |
| 厂商： | ams |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC DVR PHOTOFLASH 1A 10-DFN |
| 标准包装： | 6,000 |
| 拓扑： | 切换式电容器（充电泵） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 5.4V |
| 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-DFN（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -30°C ~ 85°C |
AS3685C
Datasheet
6 Typical Operation Characteristics
Figure 2 – Efficiency vs. Battery Voltage (with Lumiled PWF1)
100
Figure 3 – Battery Current vs. Battery Voltage (with Lumiled PWF1)
1.6
I LED =50m
I LED =100m
90
80
70
I LED =200m
I LED =300m
I LED =400m
I LED =500m
1.4
1.2
1.0
0.8
I LED =700m
60
50
I LED =600m
I LED =700m
0.6
0.4
0.2
I LED =500m
I LED =400m
I LED =300m
I LED =200m
I LED =600m
I LED =50m
I LED =100m
40
0.0
2.8
3.2
3.6
4.0
4.4
4.8
5.2
2.8
3.2
3.6
4.0
4.4
4.8
5.2
V BAT [V]
Figure 4 – LED current I(ILED) vs. Battery Voltage (with Lumiled PWF1)
0.8
V BAT [V]
Figure 5 – Linearty of Current Sink
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
I LED =500m
I LED =400m
I LED =300m
I LED =200m
I LED =100m
I LED =50m
I LED =700m
I LED =600m
0.7
0.6
0.5
0.4
0.3
0.2
0.1
I LED =500m
I LED =400m
I LED =300m
I LED =200m
I LED =100m
I LED =50m
I LED =700m
I LED =600m
0.0
2.8
3.2
3.6
4.0
4.4
4.8
5.2
0.0
0.0
0.5
1.0
1.5
2.0
2.5
Figure 6 –I(ILED) vs. R(ISET)
1200
1000
V BAT [V]
V ILED [V]
Figure 7 – Typical Operating Waveforms 1:1.5 Mode
800
Maximum Flash
Current
600
400
200
0
0k
20k
40k
60k
80k
100k
120k
140k
R ISET [Ohm]
VCP ac-coupled, 100mV/div 1μs/div
V BAT =3.3V, I LED =500mA
www.austriamicrosystems.com/AS3685
(ptr)
1.1
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