Diodes ZXLD1371 - Manual (Page 15)

ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
15 of 42
www.diodes.com
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Boost Mode – 8 LEDs – GI
RATIO
= 0.23
6 5 7 8 10 9 11 12 13 14 15 16 17 18 19 20
V (V)
IN
I = 500mA
LED
I = 150mA
LED
0.10
0.20
0.30
0.40
0.50
0.60
LE
D
C
U
R
R
E
N
T
(A
)
I = 350mA
LED
T = 25 C, V = V
8 LEDs, L = 33µH
R9 = 120k , R10 = 36k ,
C = 100µF
A AUX IN
IN
°
Ω Ω
6 5 7 8 10 9 11 12 13 14 15 16 17 18 19 20
V (V)
IN
I = 150mA
LED
I = 500mA
LED
0
100
200
300
400
500
600
700
800
SW
IT
C
H
IN
G
F
R
E
Q
U
E
N
C
Y
(k
H
z)
I = 350mA
LED
T = 25 C, V = V
8 LEDs, L = 33µH
R9 = 120k , R10 = 36k ,
C = 100µF
A AUX IN
IN
°
Ω Ω
6 5 7 8 10 9 11 12 13 14 15 16 17 18 19 20
V (V)
IN
I = 150mA
LED
I = 500mA
LED
40
60
70
80
90
100
E
F
F
IC
IE
N
C
Y
(%)
I = 350mA
LED
T = 25 C, V = V
8 LEDs, L = 33µH
R9 = 120k , R10 = 36k ,
C = 100µF
A AUX IN
IN
°
Ω Ω
50