ZXLD1374(2010) Просмотр технического описания (PDF) - Diodes Incorporated.
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ZXLD1374
(Rev.:2010)
(Rev.:2010)
Diodes Incorporated.
ZXLD1374 Datasheet PDF : 35 Pages
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A Product Line of
Diodes Incorporated
Typical Characteristics – Buck Mode – RS = 291mΩ - L = 33µH - ILED = 750mA
0.8 25
0.8 00
TA = 25°C
VAUX = VIN
L = 33µH
RS = 291mΩ
ZXLD1374
0.7 75
1 LED
3 LEDs
5 LEDs
7 LEDs
9 LEDs
11 LED s
13 LEDs
15 LEDs
0.7 50
0.7 25
0.7 00
0.6 75
6
12
10 00
90 0
80 0
70 0
60 0
TA = 25°C
VAUX = VIN
L = 33µH
RS = 291mΩ
18
24
30
36
42
48
Input Voltage (V)
Figure 14. ILED vs. Input Voltage and Number of LED
9 LED s
11 LED s
7 LED s
5 LED s
50 0
40 0
3 LED s
13 LEDs
30 0
20 0
1 LED
10 0
0
6
10 0%
12
18
24
30
36
42
48
Input Voltage (V)
Figure 15. Frequency ZXLD1374 - Buck Mode = L = 47μH
5 LED s
7 LED s
9 LED s
11 LED s
13 LEDs
95 %
90 %
3 LED s
85 %
80 %
1 LED
75 %
70 %
65 %
60 %
6
TA = 25°C
VAUX = VIN
L = 33µH
RS = 291mΩ
12
18
24
30
36
42
48
Input Voltage (V)
Figure 16. Efficiency vs. Input Voltage and Number of LED
ZXLD1374
Document number: DS35032 Rev. 1 - 2
Page 9 of 35
www.diodes.com
54
60
15 LEDs
54
60
15 LEDs
54
60
October 2010
© Diodes Incorporated
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