ZXLD1374 データシートの表示（PDF） - Diodes Incorporated.
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ZXLD1374
Diodes Incorporated.
ZXLD1374 Datasheet PDF : 39 Pages
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A Product Line of
Diodes Incorporated
ZXLD1374
Typical Characteristics – Buck Mode – RS = 291mΩ, L = 35µH, ILED = 750mA
0.825
0.800
TA = 25°C
VAUX = VIN
L = 33µH
RS = 291mΩ
0.775
1 LED
3 LEDs
5 LEDs
7 LEDs
9 LEDs
11 LEDs
0.750
13 LEDs
15 LEDs
0.725
0.700
0.675
6
12
1000
900
800
700
600
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
5 LEDs
7 LEDs
9 LEDs
11 LEDs
500
3 LEDs
400
13 LEDs
300
1 LED
200
100
0
6
12
18
24
30
36
42
48
INPUT VOLTAGE (V)
Figure 15 Frequency ZXLD1374 - Buck Mode = L = 47μH
100%
5 LEDs
7 LEDs
9 LEDs
11 LEDs
13 LEDs
95%
90%
3 LEDs
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. 3 - 2
11 of 39
www.diodes.com
54
60
15 LEDs
54
60
15 LEDs
54
60
September 2012
© Diodes Incorporated
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