Diodes ZXLD1371 - Manual (Page 11)

ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
11 of 42
www.diodes.com
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Buck Mode – R
S
=150m Ω - L = 33µH – I
LED
= 1.45A
0
100
200
300
600
700
LE
D
C
U
R
R
EN
T
(A
)
400
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
1 LED
10 20 25 30
1 ~ 16 LEDs
T = 25°C, V
L = 33µH, R = 150m
C = 100µF
A AUX,
S
IN
V =
IN
Ω
2 LEDs
3 LEDs
4 LEDs
6 LEDs
5 LEDs
8 LEDs
10 LEDs 16 LEDs
12 LEDs 14 LEDs
5 10 55 60 15 20 25 30 45 50 35 40
V (V)
IN
1000
900
100
0
800
700
300
200
600
500
400
SW
IT
C
H
IN
G F
R
E
Q
U
E
N
C
Y
(k
H
z)
5 10 15 20 25 30 35 40 45 50 55 60
100
E
F
F
IC
IE
N
C
Y
(
%
)
V (V)
IN
95
90
85
80
75
70
65
60
3 LEDs
1 LED
5 LEDs
2 LEDs
4 LEDs
6 LEDs
8 LEDs 10 LEDs 14 LEDs 16 LEDs 12 LEDs
T = 25°C, V
L = 33µH, R = 150m
C = 100µF
A AUX,
S
IN
V =
IN
Ω