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ZXLD1374 Folha de dados(PDF) 13 Page - Diodes Incorporated

Nome de Peças ZXLD1374
Descrição Electrónicos  60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
PDF  37 Pages
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Fabricante Electrônico  DIODES [Diodes Incorporated]
Página de início  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1374 Folha de dados(HTML) 13 Page - Diodes Incorporated

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ZXLD1374
60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
LED DRIVER CONVERTER WITH AEC-Q100
ZXLD1374
Document number: DS35032 Rev. 2 - 2
13 of 37
www.diodes.com
March 2011
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Buck-boost mode – R
S = 150mΩ - L = 33µH – ILED = 350mA – GIRATIO = 0.23 – with bootstrap
0.315
0.325
0.335
0.345
0.355
0.365
0.375
0.385
6.5
8.0
9.5
11.0
12.5
14.0
15.5
17.0
Input Voltage (V)
Figure 23. LED Current vs. Input Voltage and Number of LED
3 LED s
4 LED s
5 LED s
6 LED s
7 LED s
8 LED s
T = 25 C
L = 33µH
R = 150m
R
= 36
R
= 120
A
S
GI1
GI2
°
Ω
m
m
Ω
Ω
0
100
200
300
400
500
600
6.5
8.0
9.5
11.0
12.5
14.0
15.5
17.0
Input Voltage (V)
Figure 24. Switching Frequency vs. Input Voltage and Number of LED
T = 25 C
L = 33µH
R = 150m
R
= 36k
R
= 120k
A
S
GI1
GI2
°
Ω
Ω
Ω
7 LED s
8 LED s
6 LED s
5 LED s
4 LED s
3 LED s
70%
75%
80%
85%
90%
95%
100%
6.5
8.0
9.5
11.0
12.5
14.0
15.5
17.0
Input Voltage (V)
Figure 25. Efficiency vs. Input Voltage and Number of LED
T = 25 C
L = 33µH
R = 150m
R
= 36K
R
= 120k
A
S
GI1
GI2
°
Ω
Ω
Ω
3 LED s
4 LED s
5 LED s
6 LED s
7 LED s
8 LED s



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