PAM2803 Datasheet, PDF (4/8 Pages) Power Analog Micoelectronics – 3W High Power White LED Driver

PAM2803
3W High Power White LED Driver
Typical Performance Characteristics
T_A=25℃, L=2.2uH , C_ΙΝ=10uF, C_Ο=10uF, unless otherwise noted.
1. LED Power Efficiency vs Input Voltage
100
90
80
70
ILED=750m A@VF=3.7V
60
50
40
3.6 3.3 3 2.7 2.4 2.1 1.8 1.5 1.2
Input Voltage(V)
2. LED Current vs Input Voltage
800
750
700
ILED=750mA@VF=3.7V
650
600
550
500
450
400
3.6 3.3 3 2.7 2.4 2.1 1.8 1.5 1.2
Input Voltage(V)
3. DC Input Current vs Input Voltage
2300
2100
1900
1700
1500
1300
1100
900
700
ILED=750m A@VF=3.7V
500
3.6 3.3 3 2.7 2.4 2.1 1.8 1.5 1.2
Input Voltage(V)
4. Feedback Voltage vs Input Voltage
(I = _LED 750mA@V_F=3.7V)
100
95
90
85
80
75
70
65
60
55
50
3.6 3.3 3 2.7 2.4 2.1 1.8 1.5 1.2
Input Voltage(V)
Power Analog Microelectronics,Inc
www.poweranalog.com
4
08/2007