鈥?/div>
Trim and Enable Pins
Fixed Frequency
500V Isolation
Wide Input Range
Efficiency vs. Load (12V Input)
95
90
85
EFFICIENCY %
80
75
EFF. OWS1205
EFF. OWS1212
EFF. OWS1215
70
65
60
TECHNICAL SPECIFICATIONS
Input
Voltage Range
12 VDC Nominal
48 VDC Nominal
Input Reverse Voltage Protection
Input Ripple Current
Reverse Input Current
Output
Setpoint Accuracy
Line Regulation V
in
Min. - V
in
Max., I
out
Rated
Load Regulation I
out
Min. - I
out
Max., V
in
Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
out
Rated
General
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 min. each
MTBF
鈥?/div>
(Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
Rev. 05/01
Positive
V
in
Negative
300 kHz
500 VDC
0.02%/擄C
-25 To +85擄C
1
-40 To +125擄C
95%
5 g, 10 - 55 Hz
1.8 X 10
6
hrs
UL1950, CSA 22.2-950, EN60950
1.9 oz
1
55
10
20
30
40
50
60
70
80
90
100
LOAD %
10 - 20 VDC
20 - 60 VDC
Shunt Diode
20% I
in
Max.
100% I
in
Max.
Efficiency vs. Load (48V Input)
.
95
90
鹵1%
鹵1% V
out
鹵1% V
out
10 %
25% I
out
1% V
out
500
碌s
鹵10%
Continuous
110% - 130%
EFFICIENCY %
85
80
75
70
65
60
55
10
20
30
40
50
60
70
80
90
100
LOAD %
EFF. OWS4812
EFF. OWS4805
Notes
Industrial temperature range of -40 to +85擄C available; add suffix -I to P/N.
MTBF predictions may vary slightly from model to model.
鈥?/div>
Specifications typically at 25擄C, normal line, and full load, unless otherwise
stated.
Soldering Conditions: I/O pins, 260擄C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
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1
2
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