RT9363A Datasheet, PDF (7/11 Pages) Richtek Technology Corporation – 3 Channels 90mA x1/x2 Charge Pump White LED Driver

Typical Operating Characteristics
Efficiency vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
LED Vf = 3.2V
0
2.8 3.2 3.6
4
4.4 4.8 5.2 5.6
Input Voltage (V)
x1 Mode LED Current vs. Temperature
24
23
22
21
20
19
LED2
LED1
18
LED3
17
VIN = 4.0V
16
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
x1 Mode Quiescent Current vs. Temperature
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
VIN = 3.5V
0.6
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
DS9363A-03 April 2011
RT9363A
LED Current vs. Input Voltage
26
24
22
20
LED3
18
LED1
LED2
16
14
12
LED Vf = 3.2V
10
2.8 3.2 3.6 4 4.4 4.8 5.2 5.6
Input Voltage (V)
x2 Mode LED Current vs. Temperature
24
23
22
21
20
19
LED2
LED1
18
LED3
17
VIN = 3.2V
16
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
x2 Mode Quiescent Current vs. Temperature
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
VIN = 3.5V
1.0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
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7