AAT3170 Datasheet, PDF (6/15 Pages) Advanced Analogic Technologies – High Current LED Flash Driver Charge Pump IC

AAT3170
High Current LED Flash Driver Charge Pump IC
Typical Characteristics
V_IN = 3.6V, C_IN = 4.7µF, C_OUT = 2.2µF, C₁ = C₂ = 1µF, T_A = 25°C, unless otherwise noted.
Load Characteristic
(V_IN = 3.0V; 1.5X Mode; 50mA/ch Load)
Load Characteristic
(V_IN = 3.6V; 1.5X Mode; 152mA/ch Load)
V_IN
(100mV/div)
V_OUT
(200mV/div)
V_SINK
(200mV/div)
V_IN
(100mV/div)
V_OUT
(200mV/div)
V_SINK
(200mV/div)
Time (2µs/div)
Time (2µs/div)
Load Characteristic
(V_IN = 2.8V; 2X Mode; 152mA/ch Load)
V_IN
(100mV/div)
V_OUT
(200mV/div)
V_SINK
(200mV/div)
Time (2µs/div)
Voltage Mode Line Regulation
4.8
4.7
4.6
I_OUT = 10mA
4.5
4.4
4.3
I_OUT = 80mA
4.2 ^IOUT ^{= 120mA}
I_OUT = 30mA
4.1
4.0
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
Supply Voltage (V)
Voltage Mode Load Regulation
4.8
4.7
4.6
4.5
4.4
4.3
4.2
0
V_IN = 4.2V
V_IN = 3.7V
V_IN = 3.3V
50
100
150
200
250
300
Load Current (mA)
6
Flash Timer Duration
(C_T = 0.1µF; Data = 1)
1.8
1.6
85°C
1.4
1.2
1.0
25°C
0.8
-40°C
0.6
0.4
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
Supply Voltage (V)
3170.2006.10.1.0