FAN5608 Fairchild Semiconductor, FAN5608 Datasheet - Page 12

• Manufacturer Part Number: FAN5608
• Description: Serial/Parallel LED Driver with Current-Regulated/ Step-Up DC/DC Converter
• Manufacturer: Fairchild Semiconductor

PRODUCT SPECIFICATION
T
12
A
= 25
°
C, C
IN
= C
OUT
= 4.7µF, L = 4.7µH, unless otherwise noted.
0.90
0.85
0.80
0.75
0.70
0.65
5.4
5.2
5.0
4.8
4.6
0
2.5
Regulated LED Current vs Input Voltage
2
3.0
2X2 LEDs type QTPL670CiW
C
V
4
Efficiency vs LED Current
IN
IN
3.5
= 3.6V
= 47µF , C
6
Input Voltage (V)
LED Current (mA)
A=1, B=0 Scale1
A=0, B=1 Scale2
A=1, B=1 Scale3
4.0
8
OUT
10
4.5
= 4.7µF
12
L = 10µH
L = 15µH
L = 22µH
5.0
14
5.5
16
10.5
10.0
9.5
9.0
8.5
18
20
20
19
18
17
16
15
REV. 1.0.3 6/28/04
FAN5608