OWS SERIES - 25 WATT
DESCRIPTION
FEATURES
OWS single output DC/DC converters provide up to 25
Watts of output power in an industry-standard package
and footprint. The OWS features excellent efficiency,
six-sided shielding, and a fixed switching frequency. With
85°C case operation, the OWS is especially suited to
telecom, networking, and industrial applications. These
units are fully compatible with production board washing
processes.
• Industry Standard Package • Trim and Enable
• 12V and 48V Input
Versions
• 25W Output
• 85°C Case Operation
Pins
• Fixed Frequency
• 500V Isolation
• Wide Input Range
Efficiency vs. Load (12V Input)
95
90
85
80
75
70
65
60
55
TECHNICAL SPECIFICATIONS
EFF. OWS1205
EFF. OWS1212
EFF. OWS1215
Input
Voltage Range
12 VDC Nominal
10 - 20 VDC
20 - 60 VDC
Shunt Diode
48 VDC Nominal
Input Reverse Voltage Protection
Input Ripple Current
Reverse Input Current
10
20
30
40
50
60
70
80
90
100
20% I Max.
in
LOAD %
100% I Max.
in
Efficiency vs. Load (48V Input)
.
Output
Setpoint Accuracy
I
1%
in
95
Line Regulation V Min. - V Max., I
Rated
1% V
in
in
Min. - I
out
Max., V Nom.
out
out
10 %
90
85
80
75
70
65
60
55
Load Regulation I
1% V
out
out
in
Minimum Output Current
Dynamic Regulation, Loadstep
25% I
out
Pk Deviation
1% V
out
500 µs
10%
EFF. OWS4805
EFF. OWS4812
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
Continuous
110% - 130%
Rated
out
10
20
30
40
50
60
70
80
90
100
General
LOAD %
Remote Shutdown
Remote Shutdown Reference
Positive
Negative
V
in
Switching Frequency
Isolation
Input - Output
Temperature Coefficient
Case Temperature
300 kHz
Notes
500 VDC
0.02%/°C
1
†
Industrial temperature range of -40 to +85°C available; add suffix -I to P/N.
MTBF predictions may vary slightly from model to model.
1
Operating Range
Storage Range
-25 To +85°C
-40 To +125°C
95%
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 min. each
5 g, 10 - 55 Hz
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
†
6
MTBF (Bellcore TR-NWT-000332)
1.8 X 10 hrs
Safety
Weight (Approx.)
UL1950, CSA22.2-950, EN60950
1.9 oz
Safety: Agency approvals may vary from model to model. Please consult
factory for specific model information.
REV. 12/01
1