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參數資料
| 型號： | VKA50LS03-81 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數： | 1/4頁 |
| 文件大小： | 59K |
| 代理商： | VKA50LS03-81 |
VKA50xS Rev C 3/2001
Page 1
Product Data Sheet
50 W
ATT
S
INGLE
O
UTPUT
H
IGH
D
ENSITY
DC/DC C
ONVERTER
VKA50xS Series
z
Efficiency(%)
Note (1)
Min
VKA50LS03
3.3V
10.0
80
81
VKA50LS05
24VDC
5.0V
10.0
85
86
VKA50LS12
12.0V
4.2
87
88
VKA50LS15
(18-36)
15.0V
3.3
88
89
VKA50LS24
24.0V
2.1
89
90
Input
Voltage
V
OUT
(VDC)
I
OUT
(A)
Model
Typ
Efficiency(%)
Note (1)
Min
VKA50MS03
3.3V
10.0
81
82
VKA50MS05
48VDC
5.0V
10.0
86
87
VKA50MS12
12.0V
4.2
88
89
VKA50MS15
(33-75)
15.0V
3.3
89
90
VKA50MS24
24.0V
2.1
89
90
Input
Voltage
V
OUT
(VDC)
I
OUT
(A)
Model
Typ
AGENCY APPROVALS
FEATURES
18 - 36V & 33 - 75V INPUT RANGE
SMALL SIZE: 2.28" X 2.4" X 0.50"
HIGH EFFICIENCY: 87% TYPICAL AT 5V
100
μ
S TRANSIENT RESPONSE 50-100% LOAD STEP
420kH
Z
FIXED-FREQUENCY OPERATION
OPERATION TO +100°C BASEPLATE TEMP.
PRIMARY REMOTE ON/OFF, CHOICE OF POS/NEG
LOGIC
ADJUSTABLE OUTPUT VOLTAGE
REMOTE SENSE
CONTINUOUS SHORT-CIRCUIT PROTECTION
THERMAL SHUTDOWN
SAFETY PER UL1950, EN 60950 AND CSA 22.2 #234
CASE GROUND PIN
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DESCRIPTION
The VKA50xS Series DC/DC converters present an eco-
nomical and practical solution for distributed power
system architectures which require high power density
and efficiency while maintaining system modularity and
upgradeability. With the ability to operate over a wide
input voltage range of 18 to 36 and 33 to 75 volts, these
modules are ideal for use in battery backup applications
common in todays' telecommunication and electronic
data processing applications. The output is fully isolated
from the input, allowing for a variety of polarity and
grounding configurations.
The VKA50xS's proprietary control circuitry responds to
50-100% load steps in 100
μ
Seconds to within 1% nomi-
nal Vout.
The patented fixed frequency architecture combined with
surface mount technology results in a compact, efficient
and reliable solution to DC/DC conversion requirements.
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