Diodes ZXLD1371 - Manual (Page 12)

ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
12 of 42
www.diodes.com
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Boost Mode – I
LED
= 350mA – R
S
= 150m Ω – GI
RATIO
= 0.23
5 8 44 50 11 17 20 26 38 41 29 32
V (V)
IN
14 23 35 47
0.45
0.40
0.20
0.15
0.35
0.25
0.30
L
E
D
C
U
R
R
E
N
T
(
A
)
5 10 45 50 20 25 40 30
V (V)
IN
15 35
800
700
100
0
500
300
400
S
WI
T
C
H
IN
G
F
R
E
Q
U
E
N
C
Y
(k
H
z) 600
200
4 LEDs
T = 25°C,
L = 33µH, R = 150m ,
R9 = 120k , R10 = 36k
C
= 100µF
A
S
IN
V = V
AUX IN
Ω
Ω Ω
6 LEDs
8 LEDs 10 LEDs 12 LEDs 14 LEDs 16 LEDs
100
E
FF
IC
IE
N
C
Y
(
%
)
90
80
70
60
50
40