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OWS SERIES - 25 WATT
DESCRIPTION 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. FEATURES • Industry Standard Package • 12V and 48V Input Versions • 25W Output • 85°C Case Operation • • • • 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 Vin Min. - Vin Max., Iout Rated Load Regulation Iout Min. - Iout Max., Vin Nom. Minimum Output Current Dynamic Regulation, Loadstep Pk Deviation Settling Time Voltage Trim Range Short Circuit / Overcurrent Protection Current Limit Threshold Range, % of Iout 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† (Bellcore TR-NWT-000332) Safety Weight (Approx.) Rev. 05/01 Positive Vin Negative 300 kHz 500 VDC 0.02%/°C -25 To +85°C1 -40 To +125°C 95% 5 g, 10 - 55 Hz 1.8 X 106 hrs UL1950, CSA 22.2-950, EN60950 1.9 oz
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55 10 20 30 40 50 60 70 80 90 100
LOAD %
10 - 20 VDC 20 - 60 VDC Shunt Diode 20% Iin Max. 100% Iin Max.
Efficiency vs. Load (48V Input)
.
95 90
±1% ±1% Vout ±1% Vout 10 % 25% Iout 1% Vout 500 µs ±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°C available; add suffix -I to P/N. MTBF predictions may vary slightly from model to model.
†
Specifications typically at 25°C, normal line, and full load, unless otherwise stated. Soldering Conditions: I/O pins, 260°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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OWS SERIES - 25 WATT
MODELS - (See the last page of Section for options.)
Vin (Volts) 12 12 12 48 48 Vin Range (Volts) 10 - 20 10 - 20 10 - 20 20 - 60 20 - 60 Iin Max.* (Amps) 3.50 3.50 3.50 1.80 1.80 Vout (Volts) 5 12 15 5 12 Iout Rated (Amps) 5.00 2.10 1.65 5.0 2.10 Ripple & Noise Pk-Pk (mV) 50 120 150 50 120 Efficiency Typ. ** 80% 83% 84% 80% 86% Model OWS1205 OWS1212 OWS1215 OWS4805 OWS4812
* Maximum input current at minimum input voltage, maximum rated output power. ** At nominal Vin, rated output.
MECHANICAL DRAWING
2.00" (50.8mm)
0.18" MIN. (4.6mm)
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1.100"(27.9mm)
0.600"(15.2mm) 0.400"(.