LTC3208 Datasheet, PDF (6/24 Pages) Linear Technology – High Current Software Confi gurable Multidisplay LED Controller

LTC3208
TYPICAL PERFOR A CE CHARACTERISTICS
1x Mode No Load V_BAT Current vs
V_BAT Voltage
300
T_A = 25°C
290
280
270
260
250
240
230
220
210
200
2.7 3.0 3.3 3.6 3.9 4.2 4.5
V_BAT VOLTAGE (V)
3208 G13
1.5x Mode Supply Current
vs I_CPO (IV_BAT – 1.5I_CPO)
40
V_IN = 3.6V
T_A = 25°C
30
20
10
0
0
200
400
600
800
LOAD CURRENT (mA)
3208 G14
CAM Pin Current vs
CAM Pin Voltage
120
V_BAT = 3.6V
T_A = 25°C
100
80
60
40
20
0
0
0.2 0.4 0.6 0.8 1.0
CAM PIN VOLTAGE (V)
3208 G16
RGB LED Current vs Input Code
30 _{VBAT = 3.6V}
T_A = 25°C
25 ^RREF ^{= 24.3k}
20
15
10
5
0
0123456789ABCDE F
HEX CODE
3208 G17
AUX LED Current vs Input Code
28
26
24
V_BAT = 3.6V
T_A = 25°C
R_REF = 24.3k
22
20
18
16
14
12
10
8
6
4
2
0
0123456789ABCDE F
HEX CODE
3208 G21
Main/Sub LED Current vs
Input Code
28
26
24
V_BAT = 3.6V
T_A = 25°C
R_REF = 24.3k
22
20
18
16
14
12
10
8
6
4
2
0
0 10 20 30 40 50 60 70 80 90 A0 B0 C0 D0 E0 F0 FF
HEX CODE
3208 G19
6
2x Mode Supply Current
vs I_CPO (IV_BAT – 2I_CPO)
25
V_IN = 3.6V
T_A = 25°C
20
15
10
5
0
0 100 200 300 400 500 600 700 800
LOAD CURRENT (mA)
3208 G15
CAM LED Current vs
Input Code
110 _{VBAT = 3.6V}
100 T_A = 25°C
90 ^{RREF = 24.3k}
80
70
60
50
40
30
20
10
0
0123456789ABCDE F
HEX CODE
3208 G18
Main/Sub INL
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
1
80
HEX CODE
FF
3208 G20
3208fa