Typical performance characteristics, Al8806q – Diodes AL8806Q User Manual
Page 5
AL8806Q
Document number: DS36905 Rev. 1 - 2
5 of 13
www.diodes.com
April 2014
© Diodes Incorporated
AL8806Q
Typical Performance Characteristics
(cont.) (@T
A
= +25°C, unless otherwise specified.)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0%
20%
40%
60%
80%
100%
PWM Duty Cycle
I
vs. PWM Duty Cycle
LED
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
V = 12V
1 LED
R
= 150m
L = 68µH
IN
SET
Ω
LE
D
C
urre
nt
E
rro
r (%
)
LE
D Cu
rr
en
t
(A
)
LED Current Error
I
LED
80
85
90
95
100
105
110
115
120
125
130
0
2
4
6
8
Time (µs)
SW Output Switching Characteristics
-2
0
2
4
6
8
10
12
14
16
18
V
SW
V (
m
V
)
SE
N
S
E
R
= 150m
L = 68µH
SET
Ω
V = 12V
1 LED Load
IN
V
SW
V
SENSE
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
6
9
12
15
18
21
24
27
30
Input Voltage (V)
Duty Cycle vs. Input Voltage
Ω
°
L = 33µH
R
= 150m
T = 25 C
SET
A
2 LED
Du
ty
C
yc
le
0
20
40
60
80
100
120
140
160
180
200
0
5
10
15
20
25
30
R (
m
)
DS
(O
N)
Ω
V (V)
R
vs. Input Voltage
IN
DS(ON)
V
= Open
V
= V 12V
T = 25 C
CTRL
SET
IN
A
°
100
120
140
160
180
200
220
240
260
-40
-15
10
35
60
85
110
AMBIENT TEMPERATURE (°C)
SW R
vs. Temperature
DS(ON)
V
= Open
V
= V 12V
CTRL
SET
IN
R
(
m
)
DS
(O
N)
Ω