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AAT2806 Datasheet(PDF) 7 Page - Advanced Analog Technology, Inc.

Part # AAT2806
Description  Dual High Efficiency Charge Pump for White LED and Flash Applications
PDF  16 Pages
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Manufacturer  AAT [Advanced Analog Technology, Inc.]
Direct Link  http://www.aatech.com.tw
Logo AAT - Advanced Analog Technology, Inc.

AAT2806 Datasheet(HTML) 7 Page - Advanced Analog Technology, Inc.

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Typical Characteristics– White LED Backlight Driver Section
Current Matching vs. Temperature
Temperature (
°°C)
19.0
19.2
19.4
19.6
19.8
20.0
20.2
20.4
-40
-20
0
20
40
60
80
Channel 2
Channel 3
Channel 1
Channel 4
Efficiency vs. Supply Voltage
Supply Voltage (V)
50
60
70
80
90
100
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
10mA
VF = 3.1V
20mA
VF = 3.4V
Turn-Off from 1.5X Mode
(VIN = 3.5V; 20mA Load)
Time (500µs/div)
EN
(2V/div)
IIN
(100mA/div)
VF
(1V/div)
Turn-On to 2X Mode
(VIN = 2.8V; 20mA Load)
Time (100µs/div)
EN
(2V/div)
CP
(2V/div)
IIN
(200mA/div)
VSINK
(500mV/div)
Turn-On to 1.5X Mode
(VIN = 3.5V; 20mA Load)
Time (100µs/div)
EN
(2V/div)
CP
(2V/div)
IIN
(200mA/div)
VSINK
(500mV/div)
Turn-On to 1X Mode
(VIN = 4.2V; 20mA Load)
Time (100µs/div)
EN
(2V/div)
CP
(2V/div)
IIN
(200mA/div)
VSINK
(500mV/div)
AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
2806.2006.04.1.8
7



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