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VWS SERIES - 300 WATT
DESCRIPTION VWS DC/DC converters are industry standard full bricks. Featuring a fixed frequency design, the VWS offers excellent transient response and predictable EMI performance. The VWS can be combined with VWB booster modules to provide increased power. VWS converters use 100% surface-mount construction, along with planar magnetics, and are fully compatible with production board washing processes. FEATURES • 300W Standard Full Brick • Industry Standard Footprint • Open-Frame Packaging • 100°C Baseplate Operation • Planar Magnetics • Superior Transient Response • 1500V Isolation • VWB Booster Modules Available
TECHNICAL SPECIFICATIONS
Input Voltage Range 24 VDC Nominal 48 VDC Nominal Input Reflected Ripple Current Undervoltage Lockout - Turn on / Turn off Output Setpoint Accuracy Line Regulation Vin min. - Vin max., Iout rated Load Regulation Iout min. - I out max., Vin nom. Remote Sense Headroom Minimum Output Current Dynamic Regulation, Loadstep Pk Deviation Settling Time Voltage Trim Range Current Limit Threshold Range, % of Iout Rated OVP Trip Range OVP Type Short Circuit/Overcurrent Protection ±1% 0.2% Vout 0.2% Vout 0.5 VDC 10 % Iout Rated 25% Iout 4% Vout 500 µs ±10% 110 - 140% 120 - 140% Vout Nom. Self Recovering Shutdown/Hiccup 18 - 36 VDC 36 - 72 VDC 50 mA Pk-Pk 17-15 VDC /35-32 VDC
Efficiency vs. Load (48V Input)
90
EFFICIENCY %
85
EFF. (36v) EFF. (48v) EFF. (75v)
80
75 10 20 30 40 50
General Turn-On Time Remote Shutdown Remote Shutdown Reference Switching Frequency Isolation Input - Output Input - Case Output - Case Temperature Coefficient Case Temperature Operating Range Storage Range Thermal Shutdown Range Vibration, 3 Axes, 5 Min Each MTBF† (Bellcore TR-NWT-000332) Safety Weight (Approx.) Rev. 08/01 10 ms Positive Logic Vin Negative 500 kHz 1500 VDC 1050 VDC 500 VDC 0.03 %/°C
†
60 70 80 90 100
LOAD %
Notes
MTBF predictions may vary slightly from model to model.
-40 To +100°C -40 To +125°C 105 - 115°C 5 g, 10 - 55 Hz Consult Factory UL, CUL, TUV 6.0 oz
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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VWS SERIES - 300 WATT
MODELS - (See the last page of Section for options.)
Vin (Volts) 24 24 24 24 24 48 48 48 48 Vin Range (Volts) 18 - 36 18 - 36 18 - 36 18 - 36 18 - 36 36 - 72 36 - 72 36 - 72 36 - 72 Iin Max.* (Amps) 21.0 21.0 21.0 21.0 21.0 10.5 10.5 10.5 10.5 Vout (Volts) 12 15 24 28 48 12 15 24 28 Iout Rated (Amps) 20.8 16.7 10.4 8.9 5.2 25.0 20.0 12.5 10.7 Ripple & Noise Pk-Pk (mV) 120 150 200 200 200 120 150 200 200 Efficiency Typ. ** 81% 81% 82% 82% 84% 85% 84% 85% 86% Model VWS250YH-A VWS250YJ-A VWS250YK-A † VWS250Y28-A † VWS250YL-A VWS300ZH-A VWS300ZJ-A VWS300ZK-A VWS.