Diodes AP3036/A - Manual (Page 8)

Preliminary Datasheet
WHITE LED STEP-UP CONVERTER AP3036/A
Jul. 2012 Rev. 1.3 . BCD Semiconductor Manufacturing Limited
8
-40 0 40 80 120 160
20
24
28
32
36
O
V
P
Voltage (V)
Temperature ( O C)
V
IN
=V
CRTL
=3.6V
-40 0 40 80 120 160
0.6
0.8
1.0
1.2
O
perating
F
re
quency
(M
Hz)
Temperature ( O C)
V
IN
=3.6V
5 LEDs
2 4 6 8 10 12 14 16 18 20
60
65
70
75
80
85
90
E
ff
ici
ency
(%)
Input Voltage (V)
I
LED
=20mA
8 LEDs
20 30 40 50 60 70
60
64
68
72
76
80
84
88
E
ffi
ci
e
n
c
y (%
)
Output Current (mA)
V
IN
=3.6V
5 LEDs
Typical Performance Characteristics (Continued)
The WLED forward voltage (V
F
) is 3.45V at I
F
=20mA, unless otherwise noted.
Figure 12. OVP Voltage vs. Temperature Figure 13. Operating Frequency vs. Temperature
Figure 14. Efficiency vs. Input Voltage Figure 15. Efficiency vs. Output Current