Zxld1371, Typical characteristics – linear/dc dimming, A product line of diodes incorporated – Diodes ZXLD1371 User Manual
Page 8
ZXLD1371
ZXLD1371
Document number: DS35436 Rev. 1 - 2
8 of 42
February 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Linear/DC Dimming
0
150
300
450
600
750
0
150
300
450
600
750
0
0.25
0.5
0.75
1
1.25
ADJ VOLTAGE (V)
Led Current and Switching Frequency vs.
ADJ Voltage in Buck Mode
L
E
D CURR
ENT
(
m
A
)
S
W
IT
C
HI
N
G
F
R
E
Q
U
E
NCY
(
k
Hz
)
Switching
Frequency
T =25°C
V
=V =12V
2 LEDs, L=33µH
R =300m
A
AUX
IN
S
Ω
0
200
400
600
800
1000
1200
1400
0
100
200
300
400
500
600
700
0
0.25
0.5
0.75
1
1.25
ADJ VOLTAGE (V)
LED Current and Switching Frequency vs.
ADJ Voltage in Buck-Boost Mode
L
ED
C
URR
EN
T
(
m
A
)
SW
IT
C
H
IN
G
F
R
EQ
U
EN
CY
(k
H
z
)
Switching
Frequency
T = 25°C
V
= V
= 24V
8 LEDs, L = 33µH
GI = 0.23, R = 300m
A
AUX
IN
S
Ω
LED
Current
0
100
200
300
400
500
600
700
0
50
100
150
200
250
300
350
0
0.25
0.5
0.75
1
1.25
ADJ VOLTAGE (V)
LED Current and Switching Frequency vs.
ADJ Voltage in Boost Mode
L
E
D CU
RRE
N
T
(
m
A
)
SW
IT
C
H
IN
G
F
RE
QUE
N
C
Y
(k
Hz
)
Switching
Frequency
I
LED
T =25°C
V
=V =12V
12 LEDs, L=33µH
GI=0.23, R =300m
A
AUX
IN
S
Ω