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ZXLD1374EST20TC Datasheet(PDF) 10 Page - Diodes Incorporated

Part # ZXLD1374EST20TC
Description  60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST LED DRIVER CONVERTER
PDF  35 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1374EST20TC Datasheet(HTML) 10 Page - Diodes Incorporated

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ZXLD1374
ZXLD1374
Document number: DS35032 Rev. 1 - 2
Page 10 of 35
www.diodes.com
October 2010
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Typical Characteristics – Boost mode – RS = 150mΩ - L = 33µH – ILED = 325mA – GIRATIO = 0.21
0.292
0.303
0.314
0.325
0.336
0.347
0.358
12
17
22
27
32
37
42
47
Input Voltage (V)
Figure 17. I
vs. Input and Number of LED
LED
T = 25 C
L = 33µH
R = 150m
A
S
°
Ω
R
= 33k
R
= 120k
GI1
GI2
Ω
Ω
6 LED s
8 LED s
10 LEDs
12 LEDs
14 LEDs
16 LEDs
200
250
300
350
400
450
500
550
600
650
700
12
17
22
27
32
37
42
47
Input Voltage (V)
Figure 18. Frequency vs. Input Voltage and Number LED
T = 25 C
L = 33µH
R = 150m
A
S
°
Ω
R
= 33k
R
= 120k
GI1
GI2
Ω
Ω
6 LED s
8 LED s
10 LEDs
12 LEDs
14 LEDs
16 LEDs
75%
80%
85%
90%
95%
100%
12
17
22
27
32
37
42
47
Input Voltage (V)
Figure 19. Efficiency vs. Input Voltage and Number of LED
T = 25 C
L = 33µH
R = 150m
A
S
°
Ω
R
= 33k
R
= 120k
GI1
GI2
Ω
Ω
16 LEDs
14 LEDs
12 LEDs
10 LEDs
8 LED s
6 LED s



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