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| AAT2801 Datasheet, PDF (5/20 Pages) Advanced Analogic Technologies – Multi-Mode Charge Pump for White LED Backlight and Flash Applications | |||
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AAT2801
Multi-Mode Charge Pump for
White LED Backlight and Flash Applications
Typical CharacteristicsâWhite LED Backlight Driver Section
VIN = 3.5V, CIN = 2.2µF, CCP = C1 = C2 = 1.0µF; TA = 25°C, unless otherwise noted.
Efficiency vs. VIN
(Code 26)
100
90
80
3.0VF
70
60
50
3.5VF
40
30
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
Input Voltage (V)
Efficiency vs. VIN
(D1 = 3.5V; D2 = 3.3V; D3 = 3.2V; D4 = 3.0V)
100
90
Code 26
80
70
60
50
Code 28 Code 32
40
30
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
Input Voltage (V)
Efficiency vs. VIN
(D1-D2 = 3.5V; D3-D4 = 3.2V)
100
90
Code 26
80
70
60
50
40
Code 28 Code 32
30
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
Input Voltage (V)
Operating Current
(Code 23; EN_FLSH Off)
5.0
4.0
V_DX = 3.3V
3.0
2.0
1.0
V_DX = 3.0V
0.0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
Operating Current
(Code 23; EN_FLSH On; IOUT = 100mA)
8.0
7.0
V_DX = 3.3V
6.0
5.0
4.0
3.0
2.0
V_DX = 3.0V
1.0
0.0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
2801.2006.04.1.3
5
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