AAT3112IVN-4.5-T1 Advanced Analog Technology, Inc., AAT3112IVN-4.5-T1 Datasheet - Page 14

• Manufacturer Part Number: AAT3112IVN-4.5-T1
• Description: 500mA High Efficiency Charge Pump for White LED Flash Applications
• Manufacturer: Advanced Analog Technology, Inc.

Application Circuits
14
100ms - 500ms
Mode Enable
Light/Movie
T
PULSE
T
PULSE
V
IN
V
IN
Flash Enable
C
IN
Figure 2: Movie Mode Light with Flash Function.
=10μF
C
IN
=10μF
Figure 1: Flash Application.
VIN
EN1
EN2
C1 = 1μF
C1
VIN
EN1
EN2
C1 = 1μF
C1
+
+
C1
C1
GND
-
GND
-
C2
C2 = 1μF
C2
+
C2 = 1μF
VOUT
VOUT
+
500mA High Efficiency Charge Pump
C2
VOUT
VOUT
C2
-
LL4148
-
2K
R
1
for White LED Flash Applications
D1
D1
C3
0.1μF
R
3
=60 - 100
D2
D2
D3
D3
R
Q1
R
Q1
2
=10
2
=10
C
OUT
D4
D4
C
=10μF
OUT
=10μF
Flash LED
Flash LED
3112.2007.01.1.5