AAT2846_08 Datasheet, PDF (7/22 Pages) Advanced Analogic Technologies – High Current Charge Pump with Dual LDO for Backlight and Flash Applications

PRODUCT DATASHEET
AAT2846
ChargePump^TM 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 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 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 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)
2846.2008.03.1.1
www.analogictech.com
7