Preliminary datasheet, White led step-up converter ap3036/a, Typical performance characteristics (continued) – Diodes AP3036/A User Manual
Page 8: The wled forward voltage (v, Is 3.45v at i
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