Datasheet

Data Sheet ADP8866
Rev. A | Page 9 of 52
6
5
4
3
2
1
0
2.2 2.3 2.4 2.5 2.6 2.7 2.8
V
IN
(V)
R
OUT
(Ω)
09478-016
+105°C
+85°C
+25°C
–40°C
I
OUT
= 100mA
Figure 16. Typical R
OUT
(G = 2×) vs. V
IN
20
18
16
14
12
10
8
6
4
2
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
V
IN
(V)
I
SS
(mA)
09478-017
+105°C
+85°C
+25°C
–40°C
VOUT = 80% OF VIN
Figure 17. Typical Output Soft Start Current, I
SS
30
25
20
15
10
5
0
0 20 40 60 80 100
PWM DUTY CYCLE (%)
AVERAGE LED CURRENT (mA)
09478-018
+85°C
+25°C
–40°C
Figure 18. Typical Average I
OUT
vs. PWM Duty (f
PWM
= 300 Hz)
1.4
1.0
1.2
0.6
0.8
0.2
0.4
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
V
IN
(V)
THRESHOLD (V)
09478-019
V
IL
, +25°C
V
IH
, +25°C
V
IL
, –40°C
V
IH
, –40°C
V
IL
, +85°C
V
IH
, +85°C
V
IL
, +105°C
V
IH
, +105°C
Figure 19. Typical I
2
C Thresholds, V
IH
and V
IL
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
–40 –15 10 35 60 85 110
TEMPERATURE (°C)
V
OUT(REG)
(V)
09478-020
Figure 20. Typical Regulated Output Voltage (V
OUT(REG)
)
6.0
5.9
5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
5.0
–40 –15 10 35 60 85 110
TEMPERATURE (°C)
V
OUT
(V)
09478-021
THRESHOLD
RECOVERY
Figure 21. Typical Overvoltage Protection (OVP) Threshold