High Current LED Flash Driver Charge Pump IC
Typical Characteristics
V
IN
= 3.6V, C
IN
= 4.7µF, C
OUT
= 2.2µF, C
1
= C
2
= 1µF, T
A
= 25°C, unless otherwise noted.
Voltage Mode Load Response
(V
IN
= 3.3V)
AAT3172
Voltage Mode Line Response
(100mA Load)
V
OUT
(100mV/div)
100mA
I
OUT
(100mA/div)
10mA
4.50V
4.0V
V
IN
(500mV/div)
3.6V
V
OUT
(200mV/div)
4.5V
5ms/div
1ms/div
T
LAT
vs. V
IN
160
140
120
180
T
OFF
vs. V
IN
25°C
-40°C
85°C
25°C
-40°C
160
140
T
OFF
(µs)
T
LAT
(µs)
100
80
60
40
20
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
120
100
80
60
40
20
0
85°C
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)
Input Voltage (V)
V
IH
vs. V
IN
Over-Temperature
1.0
0.9
0.8
1.0
V
IL
vs. V
IN
Over-Temperature
-40°C
0.9
0.8
-40°C
V
IH
(V)
0.7
V
IL
(V)
85°C
25°C
0.7
0.6
0.5
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
0.6
0.5
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
85°C
25°C
Input Voltage (V)
Input Voltage (V)
3172.2006.05.1.5
7
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
