PRODUCT DATASHEET
AAT2610
7-Channel PMU for Digital Still Cameras
Additional Applications
The auxiliary AUX1 channel can drive higher current levels by adding an external resistor at the CSL1 pin. As an
example, a 220Ω is connected between CSL1 and GND to get a maximum 25mA led current as shown in Figure 6; a
73Ω is used to get maximum 35mA led current as shown in Figure 7.
VIN
30
C1
1μF
AAT2610
AUX1 Channel
L1
25
4.7μH
D1
38
20
15
10
5
LXL1
25mA
D1
C2
1μF
R1
1.54MΩ
40
37
OVL1
PGL
D2
R2
59kΩ
D3
D4
VIN = 3.3V
VIN = 5V
R3
220Ω
39
14
CSL1
ENL1
0
0
10 20 30 40
50 60 70 80 90 100
PWM Signal
1kHz
PWM Duty (%)
Figure 6: AUX1 Channel Application Example Driving 4 WLEDs with Maximum 25mA Led Current.
VIN
40
C1
1μF
AAT2610
AUX1 Channel
35
30
25
20
15
10
5
L1
4.7μH
D1
38
LXL1
35mA
D1
C2
R1
1μF
1.54MΩ
40
37
OVL1
PGL
D2
R2
59kΩ
D3
D4
VIN = 3.3V
VIN = 5V
R3
73Ω
39
14
0
CSL1
ENL1
0
10 20 30 40
50 60 70 80 90 100
PWM Signal
1kHz
PWM Duty (%)
Figure 7: AUX1 Channel Application Example of Driving 4 WLEDs with Maximum 35mA Led Current.
w w w . a n a l o g i c t e c h . c o m
2610.2008.11.1.1
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ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
