ZXLD1374(2010) Просмотр технического описания (PDF) - Diodes Incorporated.
Номер в каталоге
Компоненты Описание
производитель
ZXLD1374
(Rev.:2010)
(Rev.:2010)
Diodes Incorporated.
ZXLD1374 Datasheet PDF : 35 Pages
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Typical Characteristics
3
2.5
2
1.5
1
0.5
0
6 12 18 24 30 36 42 48 54 60
Supply Voltage (V)
Figure 1. Supply Current vs. Supply Voltage
70 0
14 00
65 0
60 0
12 00
55 0
50 0
10 00
45 0
40 0
ILED
80 0
35 0
30 0
25 0
S witch ing
Frequenc y
60 0
20 0
40 0
15 0
10 0
50
TA = 25°C
VAUX = VIN = 24V
8 LE Ds
L = 33µH
GI = 0.23
20 0
0
RS = 300mΩ
0
0
0.5
1
1.5
2
2.5
ADJ Voltage
Figure 3. Buck-Boost LED Current, Switching Frequency vs. VADJ
15 00
12 50
VIN = 24V
TA = 25°C
IPWM = 100Hz
ILED
10 00
A Product Line of
Diodes Incorporated
ZXLD1374
15 00
90 0
12 50
75 0
10 00
60 0
75 0
ILED
45 0
50 0
S witch ing
Frequency
30 0
25 0
TA = 25C
VAUX = VIN = 12V
2 LE Ds
L = 33µH
RS = 300m Ω
15 0
0
0
0
0.5
1
1.5
2
2.5
ADJ Voltage (V)
Figure 2. Buck LED Current, Switching Frequency vs. VADJ
70 0
70 0
65 0
60 0
60 0
55 0
50 0
50 0
45 0
40 0
ILED
40 0
35 0
30 0
25 0
S witch ing
Fr e qu e n cy
30 0
20 0
15 0
10 0
50
TA = 25C
VAUX = VIN = 12V
12 LEDs
L = 33µH
RS = 300mΩ
20 0
10 0
0
0
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5
ADJ Voltage
Figure 4. Boost LED Current, Switching Frequency vs. VADJ
75 0
50 0
25 0
0
0 10 20 30 40 50 60 70 80 90 100
PWM Duty Cycle (%)
Figure 5. ILED vs. PWM Duty Cycle
Figure 6. ILED vs time - PWM pin transient response
ZXLD1374
Document number: DS35032 Rev. 1 - 2
Page 6 of 35
www.diodes.com
October 2010
© Diodes Incorporated
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