AAT2801 AAT, AAT2801 Datasheet - Page 7

• Manufacturer Part Number: AAT2801
• Description: Multi-Mode Charge Pump
• Manufacturer: AAT

Typical Characteristics–White LED Backlight Driver Section
V
2801.2006.04.1.3
(500mV/div)
(500mV/div)
(500mV/div)
(500mV/div)
(500mV/div)
IN
(50mA/div)
(50mA/div)
(50mA/div)
= 3.5V, C
(1V/div)
(1V/div)
(1V/div)
(4V/div)
V
V
V
DIODE
DIODE
DIODE
V
V
V
V
V
V
CP
I
CP
I
CP
I
IN
IN
IN
IN
IN
IN
IN
Load Switch to Charge Pump
Charge Pump to Load Switch
Charge Pump to Load Switch
= 2.2µF, C
(1.5X Mode; 4x19mA Load)
(1.5X Mode; 4x19mA Load)
(2X Mode; 4x19mA Load)
Time (2ms/div)
CP
Time (5ms/div)
Time (5ms/div)
= C1 = C2 = 1.0µF; T
White LED Backlight and Flash Applications
A
= 25°C, unless otherwise noted.
(500mV/div)
(500mV/div)
(500mV/div)
(500mV/div)
(500mV/div)
(50mA/div)
(50mA/div)
(50mA/div)
(1V/div)
(1V/div)
(1V/div)
(4V/div)
V
V
V
DIODE
DIODE
DIODE
Multi-Mode Charge Pump for
V
V
V
V
V
V
I
I
I
CP
CP
CP
IN
IN
IN
IN
IN
IN
Load Switch to Charge Pump
Charge Pump to Load Switch
Charge Pump to Load Switch
(1.5X Mode; 4x30mA Load)
(1.5X Mode; 4x30mA Load)
(2X Mode; 4x30mA Load)
Time (2ms/div)
Time (5ms/div)
Time (5ms/div)
7