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AAT3172 Datasheet, PDF (6/14 Pages) Advanced Analogic Technologies – High Current LED Flash Driver Charge Pump IC
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AAT3172
High Current LED Flash Driver Charge Pump IC
Typical Characteristics
VIN = 3.6V, CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Load Characteristic
(VIN = 3.0V; 1.5X Mode; 50mA/ch Load)
Load Characteristic
(VIN = 3.6V; 1.5X Mode; 152mA/ch Load)
VIN
(100mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
VIN
(100mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
2µs/div
2µs/div
Load Characteristic
(VIN = 2.8V; 2X Mode; 152mA/ch Load)
VIN
(100mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
2µs/div
Voltage Mode Load Regulation
4.8
4.7
4.6
4.5
4.4
4.3
4.2
4.1
0
VIN = 4.2V
VIN = 3.7V
VIN = 3.3V
15 30 45 60 75 90 105 120 135 150
Load Current (mA)
Voltage Mode Line Regulation
4.8
4.7
4.6 IOUT = 10mA
4.5
4.4
IOUT = 120mA
4.3
IOUT = 80mA
4.2
IOUT = 30mA
4.1
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)
Voltage Mode Load Response
(VIN = 3.7V)
VOUT
(100mV/div)
IOUT
(100mA/div)
100mA
10mA
4.51V
5ms/div
6
3172.2005.11.1.1
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