AAT2801
Multi-Mode Charge Pump for
White LED Backlight and Flash Applications
Typical Characteristics–White LED Backlight Driver Section
VIN = 3.5V, CIN = 2.2µF, CCP = C1 = C2 = 1.0µF; TA = 25°C, unless otherwise noted.
Operating Characteristics Operating Characteristics
(I_DX = 4x15mA; 1.5X Mode; IOUT = 100mA)
(I_DX = 4x15mA; 1.5X Mode)
VIN = 3.0V
VIN = 3.0V
VDX
(20mV/div)
VDX
(20mV/div)
IIN
(10mA/div)
IIN
(10mA/div)
VCP
(20mV/div)
VCP
(20mV/div)
VF
(40mV/div)
Time (1µs/div)
Time (1µs/div)
Operating Characteristics
(I_DX = 4x30mA; 1.5X Mode)
Operating Characteristics
(I_DX = 4x30mA; 1.5X Mode; IOUT = 100mA)
VIN = 3.5V
VDX
(20mV/div)
VDX
(20mV/div)
IIN
(10mA/div)
VCP
IIN
(10mA/div)
(40mV/div)
VCP
(40mV/div)
VF
(40mV/div)
Time (1µs/div)
Time (1µs/div)
Input Current vs. Input Voltage
(4x10mA)
Input Current vs. Input Voltage
(4x30mA)
90
80
70
60
50
40
30
20
10
300
250
200
150
100
50
VDIODE = 3.4V
VDIODE = 3.4V
VDIODE = 3.0V
VDIODE = 3.0V
0
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Input Voltage (V)
2801.2006.04.1.3
9
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