PRODUCT DATASHEET
AAT3103
ChargePump
TM
Typical Characteristics
Shutdown Current vs. Temperature
0.07
0.06
0.05
8.0
7.0
6.0
3-Channel Charge-Pump LED Driver
Operating Current vs. Input Voltage
(V
D1
= V
D2
= V
D3
= 0V)
I
SHDN
(µA)
0.04
0.03
0.02
0.01
0.00
-40
-15
10
35
I
Q
(mA)
5.0
4.0
3.0
2.0
V
IN
= 5.5V
V
IN
= 2.7V
60
85
1.0
0.0
2.5
3
3.5
4
4.5
5
-40°C
25°C
85°C
5.5
Temperature (°C)
Input Voltage (V)
Operating Current vs. Input Voltage
(No Load; D1, D2, D3 Open)
4.2
LED Current Matching vs. Temperature
21.0
3.9
Current (mA)
4.1
20.5
I
Q
(mA)
20.0
3.8
3.6
2.5
85°C
25°C
-40°C
3
3.5
4
4.5
5
5.5
19.5
19.0
-40
D1
D2
D3
-15
10
35
60
85
Input Voltage (V)
Temperature (°C)
Efficiency vs. Input Voltage
100
90
80
28
35
I
LED
Full Scale vs. R
SET
Efficiency (%)
70
I
LED
(mA)
I
LED
= 30mA,V
F
= 3.5V
I
LED
= 20mA,V
F
= 3.2V
I
LED
= 10mA,V
F
= 3.0V
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
60
50
40
30
20
10
0
21
14
7
0
8
13
18
23
28
33
Input Voltage (V)
R
SET
(kΩ)
3103.2008.03.1.0
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AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
