Diodes AP3033 - Manual (Page 7)

Preliminary Datasheet
7
Jan. 2010 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
WHITE LED STEP-UP CONVERTER AP3033
Typical Performance Characteristics (Continued)
Figure 8. Feedback Voltage vs. Case Temperature
(WLED forward voltage (V
F
)=3.2V at I
F
=20mA, unless otherwise noted.)
-40 -20 0 20 40 60 80 100 120
150
160
170
180
190
200
210
220
F
ee
dback Voltage
(V)
Case Temperature ( 0 C)
Figure 9. Saturation Voltage vs. Switch Current
0.2 0.4 0.6 0.8 1.0
100
200
300
400
500
600
700
800
900
1000
S
aturation V
ol
tag
e
(mV
)
Switch Current (A)
T
C
=-40 0 C
T
C
=25 0 C
T
C
=85 0 C
Figure 11. OVP Voltage vs. Case Temperature Figure 10. Frequency vs. Case Temperature
-40 -20 0 20 40 60 80 100 120
0.0
0.3
0.6
0.9
1.2
1.5
1.8
F
requency (MHz)
Case Temperature ( 0 C)
-40 -20 0 20 40 60 80 100 120
12
13
14
15
16
17
18
19
20
O
VP Voltage
(V)
Case Temperature ( 0 C)