ame5142c AME, Inc., ame5142c Datasheet - Page 18

• Manufacturer Part Number: ame5142c
• Description: High Efficiency 6 White Led Driver With Open Led Protection
• Manufacturer: AME, Inc.

n Characterization Curves
18
AME5142C
92.0
91.8
91.6
91.4
91.2
91.0
90.8
90.6
90.4
90.2
89.8
89.6
89.4
89.2
88.8
88.6
88.4
88.2
90.0
89.0
88.0
1.80
1.00
0.60
0.40
0.20
1.60
1.40
1.20
0.80
100
90
80
70
60
50
-25
2.7
2.7
Max Duty Cycle vs. Temperature
AME
3.1
3.1
T
Efficiency vs. Load Current
A
0
= 85
o
C
3.5
3.5
Temperature (
Switch RDSON
Dirving 4 LEDs
25
3.9
3.9
V
V
IN
I N
50
(V)
(V)
4.3
4.3
o
75
C)
4.7
4.7
T
A
100
= 25
5.1
5.1
o
C
125
5.5
5.5
High Efficiency 6 White LED Driver
1.00
1.45
1.40
1.35
1.25
1.20
1.15
1.10
1.05
0.95
1.50
1.30
0.90
100
100
90
80
70
60
50
90
80
70
60
50
-25
2.7
2.7
Oscillator Frequency vs. Temperature
With Open LED Protection
3.1
3.1
Efficiency vs. Load Current
Efficiency vs. Load Current
0
3.5
3.5
Temperature (
Dirving 3 LEDs
Dirving 6 LEDs
25
3.9
3.9
V
V
IN
IN
50
(V)
(V)
4.3
4.3
o
75
C)
4.7
4.7
100
5.1
5.1
Rev. B.01
125
5.5
5.5