ZXLD1374 Ver la hoja de datos (PDF) - Diodes Incorporated.
Número de pieza
componentes Descripción
Fabricante
ZXLD1374
Diodes Incorporated.
ZXLD1374 Datasheet PDF : 39 Pages
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A Product Line of
Diodes Incorporated
ZXLD1374
Typical Characteristics – Buck - Boost Mode – RS = 150mΩ, L = 33µH, ILED = 350mA, GIRATIO = 0.23 with Bootstrap
0.385
0.375
0.365
0.355
6 LEDs
7 LEDs
8 LEDs
0.345
0.335
0.325
0.315
6.5
600
500
3 LEDs
4 LEDs
5 LEDs
TA = 25°C
L = 33µH
RS = 150mΩ
RGI1 = 36mΩ
RGI2 = 120mΩ
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
6 LEDs
7 LEDs
8 LEDs
400
300
5 LEDs
4 LEDs
3 LEDs
200
100
0
6.5
100%
95%
90%
TA = 25°C
L = 33µH
RS = 150mΩ
RGI1 = 36kΩ
RGI2 = 120kΩ
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
TA = 25°C
L = 33µH
RS = 150mΩ
RGI1 = 36KΩ
RGI2 = 120kΩ
85%
80%
75%
8 LEDs
7 LEDs
6 LEDs
5 LEDs
4 LEDs
3 LEDs
70%
6.5
8.0
ZXLD1374
Document number: DS35032 Rev. 3 - 2
9.5
11.0
12.5
14.0
15.5
INPUT VOLTAGE (V)
Figure 25 Efficiency vs. Input Voltage and Number of LED
14 of 39
www.diodes.com
17.0
September 2012
© Diodes Incorporated
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