PRODUCT DATASHEET
AAT3113,AAT3114/14A
TM
ChargePump
High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
Application Circuits
VIN
C1+
C1
1µF
C1-
C2+
OUT
C
1µF
C
OUT
1µF
IN
C2
1µF
V
AAT3114/14A
BATTERY
C2-
D1
D2
D3
D4
D5
D6
Display Module
D5 D6
EN/SET
EN/SET
GND
D1
R1
D2
R2
D3
D4
R4
R3
R5
R6
Resistor R is optional
Figure 4: AAT3114/14A Application Driving a Display Module With Six Parallel-Connected White LEDs.
VIN
C1+
C1
1µF
C1-
C2+
OUT
C
1µF
C
OUT
1µF
IN
C2
1µF
V
AAT3114/14A
BATTERY
C2-
Keyboard Backlight
D1
D2
D3
D4
Display Backlight
D4
D5
D6
EN/SET
EN/SET
GND
D5
D6
D1
D2
D3
Enable Keyboard Backlight
Enable Display Backlight
Figure 5: AAT3114/14A Dual Backlight Control Circuit.
w w w . a n a l o g i c t e c h . c o m
3113.2008.05.1.10
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