ame5142c AME, Inc., ame5142c Datasheet - Page 16

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

16
AME5142C
4.7 F
4.7 F
4.7 F
V
C
V
C
V
C
IN
IN
IN
IN
IN
IN
Figure 13: Circuit For Driving 2 Strings of 5 White LEDs
Figure 12: Circuit For Driving 2 Strings of 4 White LEDs
Figure 11: Circuit For Driving 2 Strings of 4 White LEDs
3.3V to 5.5V
3.3V to 5.5V
3.3V to 5.5V
AME
IN
IN
IN
EN
GND
EN
GND
EN
GND
AME5142C
AME5142C
AME5142C
10 H
10 H
10 H
L1
L1
L1
OVP
OVP
OVP
SW
SW
SW
FB
FB
FB
7.5
7.5
7.5
R2
R2
R2
7.5
7.5
7.5
R2
R2
R2
V
V
V
High Efficiency 6 White LED Driver
OUT
OUT
OUT
C
C
C
1 F
1 F
1 F
OUT
OUT
OUT
100
100
95
90
85
80
90
85
80
75
70
65
60
55
50
95
90
85
80
With Open LED Protection
3
0
3
3. 5
3.5
10
V
V
Efficiency Vs V
IN
Efficiency Vs I
IN
Efficiency Vs V
= 3.3V
= 4.2V
V
IN
4
4
= 3.6V
I
OUT
V
V
IN
IN
20
(mA)
(v)
(v)
4.5
4. 5
OUT
IN
V
I
IN
LED
OUT
V
30
V
I
OUT
OUT
I
OUT
OUT
= 20mA
=12.5V
5
5
= 40mA
= 12.5V
= 15.6V
= 40mA
Rev. B.01
5.5
40
5.5