Two LED Efficiency
95%
90%
Three LED Efficiency
VIN=3.6V
EFFICIENCY
85%
VIN=3.6V
EFFICIENCY
90%
85%
80%
75%
0
5
10
15
20
CURRENT (mA)
25
30
VIN=3V
VIN=3V
80%
75%
0
5
10
15
20
CURRENT (mA)
25
30
Four LED Efficiency
90%
VIN=3.6V
90%
Five LED Efficiency
VIN=5V
85%
EFFICIENCY
EFFICIENCY
85%
80%
75%
70%
0
5
10
15
CURRENT (mA)
VIN=3V
80%
75%
70%
65%
VIN=3.6V
0
5
10
15
CURRENT (mA)
Six LED Efficiency
85%
80%
EFFICIENCY
75%
70%
65%
60%
0
5
10
CURRENT (mA)
15
VIN=5V
VIN=3.6V
VFB (mV)
99
97
95
93
91
5
VFB VS. ILOAD
2LED
3LED
4LED
10
15
ILOAD (mA)
20
Revision 12/4/2008
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics, Inc., 2006. •
www.seawardinc.com.cn
• Page 5
SEAWARD [ Seaward Electronics Inc. ]
