EUP2983
Typical Operating Characteristics
Driving 9 Strings of 3 LEDs
VIN=8.4V Driving Multiple Strings LED
95
93
91
89
87
85
83
81
79
77
75
94
92
90
88
86
84
82
80
78
VIN=6V
76
74
72
70
15LEDs
27LEDs
3LEDs
VIN=8.4V
VIN=15V
0
5
10
15
20
0
5
10
15
20
LED Current(mA)
LED Current(mA)
Soft-Start and Shutdown
LED Current vs. Direct-PWM Dimming
(FCTRL=1KHz)
22
20
18
16
14
12
10
8
6
4
2
0
0
10 20 30 40 50 60 70 80 90 100
Duty Cycle(%)
VIN=8.4V Driving 5 Strings of 3 LEDs
VIN=8.4V Driving 1 String of 3 LEDs
DS2983 Ver1.2 Nov. 2008
5