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参数资料
| 型号： | VKA50MS28-81 |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 2/4页 |
| 文件大小： | 63K |
| 代理商： | VKA50MS28-81 |
VKA50xs RevA
7/98
Page 2
COMMON SPECIFICATIONS
Specifications typical at T
CASE = +40°C, nominal input voltage, rated output current unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT
Voltage Range
VKA50LS
18
24
40
VDC
VKA50MS
33
48
75
VDC
Maximum Input Current
VKA50LS
V
IN = 16VDC
3.7
A
VKA50MS
V
IN = 27VDC
2.2
A
Reflected Ripple Current
Peak - Peak
20
mA
Input Ripple Rejection
DC to 1KHz
50
60
dB
No Load Input Current LS/MS
50/100
mA
Power Dissipation LS/MS
No Load
3.6/4.8
W
Standby, Primary On/Off Disabled LS/MS
0.18/0.4
W
Inrush Charge
V
IN = VINmax.
VKA50LS
0.520
mC
VKA50MS
0.360
mC
Quiescent Operating Current
Primary On/Off Disabled
812
mA
OUTPUT
Rated Power
050
W
Set point Accuracy
1%
Line Regulation
High Line to Low Line
0.02
0.05
%
Load Regulation
No Load to Rated Load
0.02
0.05
%
Output Temperature Drift
±.02
%/°C
Output Ripple, p-p
DC to 20MHz BW
1%
V
OUT, Nom
Output Current Limit Inception
130%
l
OUT, Nom
Output Short-Circuit Current (2)
test
110%
l
OUT, Nom
Output Overvoltage Limit
3.3V Output
4
5
V
5V Output
6.6
V
12V, 15V, 24V and 28V
125%
130%
V
OUT, Nom
Transient Response
50 to 100% Load Step
Peak Deviation
di/dt = 75A/
Sec
7%
V
OUT, Nom
Settling Time
V
OUT, 1% of Nominal Output
75
100
Sec
ISOLATION
Input to Output
Peak Test for 2 Seconds
1500
VDC
Input to Baseplate
1500
VDC
Output to Baseplate
500
VDC
Resistance
10
M
Capacitance
2000
pF
Leakage Current
V
ISO = 240VAC, 60Hz
180
A, rms
GENERAL
Efficiency, Line, Load, Temp. (3)
(See Note 3, Page 3)
Switching Frequency
400
420
440
KHz
Remote Sense Compensation
0.5
V
Output Voltage Adjust Range (4)
-50% / +10%
V
OUT, Nom
Remote On/Off Control Inputs
Primary
Open Collector/Drain
Sink Current-Logic Low
1.0
mA
Vlow
1V
Vhigh
2V
Turn-on Time
Within 1% of Rated Output
10.0
12.5
mSec
Weight
85 (3.0)
g (oz.)
TEMPERATURE
Operation/Specification
Case Temperature
-40
+25
+100
°C
Storage
Case Temperature
-55
+25
+125
°C
Shutdown Temperature
Case Temperature
+100
+115
°C
Thermal Impedance, case-ambient
8.2
°C/W
Lead Solder Temperature
10 Seconds max
+300
°C
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