LTC3209-1 Datasheet, PDF (6/20 Pages) Linear Technology – 600mA Main/Camera LED Controller

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
400
V_BAT = 3.6V
360
320
280
220
200
160
120
80
40
0
0
100
200
300
400
CAM PIN CURRENT (mA)
3209 G24
LTC3209-2 CAM Pin Dropout
Voltage vs CAM Pin Current
400
V_BAT = 3.6V
360
320
280
220
200
160
120
80
40
0
0
50
100
150
200
CAM PIN CURRENT (mA)
3209 G24
MAIN Pin Dropout Voltage
vs MAIN Pin Current
200 _{VBAT = 3.6V}
180
160
140
120
100
80
60
40
20
0
0 5 10 15 20 25 30
MAIN PIN CURRENT (mA)
3209 G27
LTC3209-2 CAM Pin Current
vs CAM Pin Voltage
200
V_BAT = 3.6V
160
120
80
40
0
0
0.2 0.4 0.6 0.8 1.0
CAM PIN VOLTAGE (V)
3209 G16
MAIN Pin Current
vs MAIN Pin Voltage
30
25
20
15
10
5
V_BAT = 3.6V
0
0
0.2 0.4 0.6 0.8 1.0
MAIN PIN VOLTAGE (V)
3209 G26
AUX Pin Current vs Input Code
16
V_BAT = 3.6V
14 ^{VAUX = 1V}
12
10
8
6
4
2
0
0
1
2
3
HEX CODE
3209 G20
6
LTC3209-2 CAM Pin Current
vs Input Code
200
V_BAT = 3.6V
180
160
140
120
100
80
60
40
20
0
0123456789ABCDE F
HEX CODE
3209 G17
MAIN Pin Current vs Input Code
28
26 ^{VBAT = 3.6V}
24
22
20
18
16
14
12
10
8
6
4
2
0
0 10 20 30 40 50 60 70 80 90 A0 B0 C0D0 E0 F0 FF
HEX CODE
3209 G17
6-LED MAIN Display Efficiency
vs V_BAT
100
90
80
70
60
50
40
30
20
10 ^{6 LEDS AT 15mA/LED}
(TYP V_F AT 15mA = 3.2V)
0
3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4
V_BAT (V)
3209 G21
320912fa