LTC3206 Datasheet, PDF (4/16 Pages) Linear Technology – I2C Multidisplay LED Controller

LTC3206
TYPICAL PERFOR A CE CHARACTERISTICS
1x Mode Switch Resistance
vs Temperature
0.9
I_CPO = 100mA
0.8
V_IN = 3.6V
V_IN = 3.3V
0.7
V_IN = 3.9V
0.6
0.5
–40
–15 10
35
60
85
TEMPERATURE (°C)
3206 G04
Oscillator Frequency
vs Supply Voltage
1100
1000
900
T_A = 25°C
T_A = –40°C
T_A = 85°C
800
700
2.7
3.0 3.3 3.6 3.9 4.2 4.5
V_IN SUPPLY VOLTAGE (V)
3206 G07
1x Mode No Load Supply Current
vs Input Voltage
300
T_A = 25°C
I_MS = I_RGB = 0µA
250
200
150
100
2.7
3.0 3.3 3.6 3.9
INPUT VOLTAGE (V)
4.2 4.5
3206 G10
4
1.5x Mode Charge Pump Open-
Loop Output Resistance vs
Temperature (1.5V_IN – V_CPO)/I_CPO
2.50
V_IN = 3V
V_CPO = 4.2V
C_IN = C_CPO = C_FLY1 = C_FLY2 = 1.6µF
2.25
2.00
1.75
1.50
–40
–15
10
35
60
85
TEMPERATURE (°C)
3206 G05
DV_CC Shutdown Current
vs Input Voltage
0.5
V_IN = 3.6V
0.4
T_A = 25°C
0.3
T_A = –40°C
0.2
T_A = 85°C
0.1
0
2.7 3.0 3.3 3.6 3.9 4.2 4.5
DV_CC VOLTAGE (V)
3206 G08
1.5x Mode Supply Current
vs I_CPO (I_IN – 1.5I_CPO)
10
V_IN = 3.6V
T_A = 25°C
8
6
4
2
0
0 50 100 150 200 250 300
LOAD CURRENT (mA)
3206 G11
1.5x Mode CPO Voltage
vs Load Current
4.8
C_IN = C_CPO = C_FLY1 C_FLY2 = 1.6µF
4.7
3.6V ^{TA = 25°C}
4.6
3.5V
3.4V
4.5
4.4
3.3V
4.3
3.2V
3.1V
4.2
V_IN = 3V
4.1
4.0
3.9
3.8
0
100 200 300 400 500
LOAD CURRENT (mA)
3206 G06
V_IN Shutdown Current
vs Input Voltage
10
DV_CC = 3V
8
T_A = –40°C
6
T_A = 85°C
T_A = 25°C
4
2
0
2.7 3.0 3.3 3.6 3.9 4.2 4.5
INPUT VOLTAGE (V)
3206 G09
LED Pin Voltage for Higher LED
Currents
120
V_IN = 3.6V
T_A = 25°C
100
I_MS, I_RGB = 250µA
I_MS, I_RGB = 200µA
80
I_MS, I_RGB = 150µA
60
I_MS, I_RGB = 100µA
40
20
I_MS, I_RGB = 50µA
0
0
0.2
0.4
0.6
0.8 1.0
LED PIN VOLTAGE (V)
3206 G12
3206f