FAN5606 Datasheet, PDF (7/9 Pages) Fairchild Semiconductor – Serial LED Driver with Current-Regulated, Step-Up DC/DC Converter

PRODUCT SPECIFICATION
FAN5606
Typical Performance Characteristics
T_A = 25 °C, C_IN = 47µF, C_OUT = 4.7µF, L = 6.8µH, unless otherwise noted.
Regulated LED Current vs Input Voltage
Efficiency vs Input Voltage
10.5
5.4
20
5.2
10.0
19
18
5.0
9.5
17
4.8
A=1, B=0 Scale1
A=0, B=1 Scale2
9.0
A=1, B=1 Scale3
16
4.6
8.5
15
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Input Voltage (V)
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
2.5
2 x 20mA Load, L = 22µH
4 x 20mA Load, L = 6.8µH
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Shutdown Current vs Input Voltage
0.065
0.060
0.055
0.050
0.045
0.040
0.035
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
REV. 1.0.3 1/7/05
7