Diodes ZXLD1371 - Manual (Page 14)

ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
14 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
6 5 7 8 10 9 11 12 13 14 15 16 17 18 19 20
V (V)
IN
L = 100µH
0.25
0.29
0.35
0.37
0.41
0.45
LE
D
C
U
R
R
EN
T
(A
)
T = 25 C, V = V
8 LEDs, RS = 150m
R9 = 120k , R10 = 36k ,
C = 100µF
A AUX IN
IN
°
Ω Ω
Ω
L = 33µH
L = 68µH
0.43
0.39
0.33
0.31
0.27
6 5 7 8 10 9 11 12 13 14 15 16 17 18 19 20
V (V)
IN
T = 25 C, V = V
8 LEDs, R = 150m ,
R9 = 120k , R10 = 36k ,
C = 100µF
A AUX IN
S
IN
°
Ω
Ω Ω
L = 33µH
0
50
100
150
200
250
300
350
400
450
500
SW
IT
CHING F
R
EQUEN
C
Y
(
k
Hz
)
L = 100µH
L = 68µH
6 5 7 8 10 9 11 12 13 14 15 16 17 18 19
V (V)
IN
40
50
60
70
80
90
100
EF
F
ICIE
NCY
%
L = 33µH
L = 100µH
L = 68µH
T = 25 C, V = V
8 LEDs, R = 150m ,
R9 = 120k , R10 = 36k ,
C = 100µF
A AUX IN
S
IN
°
Ω
Ω Ω