LTC3209-1/LTC3209-2
TYPICAL PERFOR A CE CHARACTERISTICS T A = 25 ° C unless otherwise noted
LTC3209-1 CAM Pin Dropout
Voltage vs CAM Pin Current
LTC3209-2 CAM Pin Current
vs CAM Pin Voltage
LTC3209-2 CAM Pin Current
vs Input Code
400
360
V BAT = 3.6V
200
V BAT = 3.6V
200
180
V BAT = 3.6V
320
280
220
200
160
120
80
40
160
120
80
40
160
140
120
100
80
60
40
20
0
0
100
200
300
400
0
0
0.2
0.4
0.6
0.8
1.0
0
0 1 2 3 4 5 6 7 8 9 A B C D E F
CAM PIN CURRENT (mA)
LTC3209-2 CAM Pin Dropout
Voltage vs CAM Pin Current
3209 G24
CAM PIN VOLTAGE (V)
MAIN Pin Current
vs MAIN Pin Voltage
3209 G16
HEX CODE
3209 G17
MAIN Pin Current vs Input Code
400
360
320
280
220
200
160
120
V BAT = 3.6V
30
25
20
15
10
28
26
24
22
20
18
16
14
12
10
8
V BAT = 3.6V
80
40
0
0
50
100
150
200
5
0
0
0.2
V BAT = 3.6V
0.4 0.6 0.8 1.0
6
4
2
0
0 10 20 30 40 50 60 70 80 90 A0 B0 C0D0 E0 F0 FF
CAM PIN CURRENT (mA)
MAIN Pin Dropout Voltage
vs MAIN Pin Current
3209 G24
MAIN PIN VOLTAGE (V)
3209 G26
AUX Pin Current vs Input Code
HEX CODE
3209 G17
6-LED MAIN Display Efficiency
vs V BAT
200
180
160
V BAT = 3.6V
16
14
12
V BAT = 3.6V
V AUX = 1V
100
90
80
140
70
120
100
80
60
40
10
8
6
4
60
50
40
30
20
20
0
0
5
10
15 20
25
30
2
0
0
1
2
3
10
0
6 LEDS AT 15mA/LED
(TYP V F AT 15mA = 3.2V)
3.0 3.2 3.4 3.6 3.8
4.0
4.2
4.4
MAIN PIN CURRENT (mA)
3209 G27
HEX CODE
3209 G20
V BAT (V)
3209 G21
320912fa
6
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