AAT3169(2006) Ver la hoja de datos (PDF) - Advanced Analogic Technologies
Número de pieza
componentes Descripción
Lista de partido
AAT3169
(Rev.:2006)
(Rev.:2006)
Advanced Analogic Technologies
AAT3169 Datasheet PDF : 14 Pages
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AAT3169
High Efficiency 1X/1.5X/2X Charge
Pump for White LED Applications
Typical Characteristics
CIN = COUT = C1 = C2 = 1.0µF, VIN = 3.6V, TA = 25°C, unless otherwise noted.
Efficiency vs. Supply Voltage
100
90
80
70
60
50
2.8
4.9mA/ch
VF = 2.9V
10.9mA/ch
VF = 3.1V
20mA/ch
VF = 3.4V
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Supply Voltage (V)
EN
(2V/div)
CP
(2V/div)
VSINK
(500mV/div)
IIN
(200mA/div)
Turn-On to 1X Mode
(VIN = 4.2V; 20mA/Channel)
Time (100µs/div)
EN
(2V/div)
CP
(2V/div)
VSINK
(500mV/div)
IIN
(200mA/div)
Turn-On to 1.5X Mode
(VIN = 3.8V; 20mA/Channel)
Time (100µs/div)
EN
(2V/div)
CP
(2V/div)
VSINK
(500mV/div)
IIN
(200mA/div)
Turn-On to 2X Mode
(VIN = 2.8V; 20mA/Channel)
Time (100µs/div)
EN
(2V/div)
VF
(1V/div)
IIN
(100mA/div)
Turn-Off from 1.5X Mode
(VIN = 3.5V; 20mA/Channel)
Time (100µs/div)
Current Matching vs. Temperature
20.2
20.0
19.8
19.6
19.4
19.2
-40
Channel 2
Channel 1
Channel 5
Channel 3
Channel 4
Channel 6
-20
0
20
40
60
80
Temperature (°C)
3169.2006.04.1.0
5
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