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ADM8845ACPZ-WP2 PDF预览

ADM8845ACPZ-WP2

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
亚德诺 - ADI 驱动器
页数 文件大小 规格书
20页 372K
描述
Charge Pump Driver for LCD White LED Backlights

ADM8845ACPZ-WP2 数据手册

 浏览型号ADM8845ACPZ-WP2的Datasheet PDF文件第5页浏览型号ADM8845ACPZ-WP2的Datasheet PDF文件第6页浏览型号ADM8845ACPZ-WP2的Datasheet PDF文件第7页浏览型号ADM8845ACPZ-WP2的Datasheet PDF文件第9页浏览型号ADM8845ACPZ-WP2的Datasheet PDF文件第10页浏览型号ADM8845ACPZ-WP2的Datasheet PDF文件第11页 
ADM8845  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
V
V
V
= 3.6V  
= 4.0V  
= 4.3V  
F
F
F
1
V
CC  
2
V
V
V
= 3.8V  
= 3.2V  
OUT  
F
F
B
B
W
CH1 20.0mV  
CH2 20.0mV  
M 400ns CH1  
220mV  
W
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2  
V
CC  
Figure 15. 1× Mode Operating Waveforms  
Figure 18. Power Efficiency vs. Supply Voltage over Li-Ion Range,  
Six LEDS @ 20 mA/LED  
90  
90  
V
V
V
= 4.3V  
= 4.0V  
= 3.8V  
V
V
V
= 3.8V  
F
F
F
F
F
F
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
= 4.0V  
= 4.3V  
V
V
= 3.6V  
= 3.2V  
F
V
V
= 3.6V  
= 3.2V  
F
F
F
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2  
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2  
V
CC  
V
CC  
Figure 19. Power Efficiency vs. Supply Voltage over Li-Ion Range  
Four LEDS @ 20 mA/LED  
Figure 16. Power Efficiency vs. Supply Voltage over Li-ion Range,  
Six LEDS @ 15 mA/LED  
90  
V
V
V
= 3.8V  
= 4.0V  
= 4.3V  
F
F
F
C2 FALL  
200µs  
LOW SIGNAL  
AMPLITUDE  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
: 44.0ms  
@: –44.4ms  
CTRL1/2  
1
V
OUT  
V
V
= 3.6V  
= 3.2V  
F
F
2
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2  
CH1 2.00V CH2 2.00V  
M10.0ms  
CH2  
4.36V  
V
CC  
Figure 20. TPC Delay  
Figure 17. Power Efficiency vs. Supply Voltage over Li-Ion Range,  
Four LEDS @ 15 mA/LED  
Rev. 0 | Page 8 of 20  

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