Diodes AP3615 Manuel d'utilisateur Page 7

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Data Sheet
5 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3615
Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics (Continued)
T
A
=25ºC, C
IN
=C
1
=C
2
=C
OUT
=1μF, V
F
=3.2V, unless otherwise noted.
Figure 8. 1x Mode WLED Current vs. Temperature Figure 9. 1.5x Mode WLED Current vs.
Temperature
Figure 10. Efficiency vs. Input Voltage Figure 11. Frequency vs. Temperature
-40 -20 0 20 40 60 80 100 120 140
16
17
18
19
20
21
22
T
A
=25
o
C
V
IN
=5V
WLED Current (mA)
Temperature (
O
C)
I
D1
I
D2
I
D3
I
D4
I
D5
-40 -20 0 20 40 60 80 100 120 140
16
17
18
19
20
21
22
T
A
=25
o
C
V
IN
=3.6V
WLED Current (mA)
Temperature (
O
C)
I
D1
I
D2
I
D3
I
D4
I
D5
-40 -20 0 20 40 60 80 100 120 140
0.4
0.6
0.8
1.0
1.2
1.4
V
IN
=3.6V
I
D1
=I
D2
=I
D3
=I
D4
=I
D5
=20mA
Frequency (MHz)
Temperature (
o
C)
2.8 3.2 3.6 4.0 4.4 4.8 5.2 5.6
10
20
30
40
50
60
70
80
90
100
T
A
=25
o
C
V
IN
from High to Low
I
D1
=I
D2
=I
D3
=I
D4
=I
D5
=20mA
Efficiency (%)
Input Voltage (V)
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