AAT2846 Datasheet, PDF (8/25 Pages) Advanced Analogic Technologies – High Current Charge Pump with Dual LDO for Backlight and Flash Applications

AAT2846
High Current Charge Pump with Dual LDO
for Backlight and Flash Applications
Typical Characteristics
Turn On to 2X Mode Backlight
(30mA/ch; Data 1; V_IN = 2.7V)
V_EN
(2V/div)
V_OUT
(2V/div)
V_SINK
(500mV/div)
0V
0V
0V
I_IN
0A
(200mA/div)
Time (200µs/div)
Turn Off from 1.5X Mode Backlight
(30mA/ch; Data 1)
V_EN
(2V/div)
V_OUT
(2V/div)
I_IN
(200mA/div)
0V
0V
0A
Time (100µs/div)
BENS, FENS High Threshold Voltage
vs. Input Voltage
1.4
1.3
1.2
-40°C
1.1
1.0
0.9
0.8
0.7
25°C
85°C
0.6
0.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
BENS, FENS Low Threshold Voltage
vs. Input Voltage
1.4
1.3
1.2
-40°C
1.1
1.0
0.9
0.8
0.7
25°C
85°C
0.6
0.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
BENS, FENS Latch Timeout vs. Input Voltage
260
240
220
25°C
200
-40°C
180
160
140
25°C
120
100
80
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
BENS, FENS Off Timeout vs. Input Voltage
300
260
25°C
-40°C
220
85°C
180
140
100
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
8
2846.2007.08.1.0