Welcome To Roberts Warr Electronics Limited

FEATURES:

500W 6U X 8HP EUROCARD PACKAGE
36-72VDC NOMINAL 48VDC INPUT
INTERNAL OR-ING DIODES FOR N+1 REDUNDANCY
HOT-SWAPPABLE
THIRD-WIRE CURRENT SHARING
EMI MEET EN 55022 CLASS A
CE MARKING COMPLIANCE
FULLY COMPLIANT WITH PICMG

FEATURES

INPUT SPECIFICATION

Input Voltage: Typ. 36-72Vdc,nominal input 48Vdc.
OVP shutdown at 75Vdc & UVP shutdown at 36Vdc.
Input Connector: Positronic 47-pin PCIH47M400A1.
Soft Start: Installed.
Inrush Current: Typ. 11A @ 48Vdc.
Input Current: 13.2A @ nominal input 48Vdc.
Dielectric Withstand: Meet IEC 60950-1 regulation.
Transient Protection: MOV withstands transient as
specified by EN 61000-4-4 level 3.
EMI: Meet CISPR EN55022 Class A.
Remote ON/OFF: Available at [INH#] & [EN#] pins.
Power Fail Signal: Available at [FAL#] pin.
Status LED: <Green>means valid input voltage.
<Amber> means a critical fault.
Thermal Protection (OTP): Installed NTC for thermal sensor
at [DEG#] pin. Thermostat will
shutdown the PSU if >100°C.

OUTPUT SPECIFICATION

Output Voltage: See Ratings Chart.
Output Current: See Ratings Chart.
Output Power: Typ. 500W continuous.
Output Connector: Positronic 47-Pin PCIH47M400A1.
Line Regulation: Typ. 0.1%.
Load Regulation: VO1 typ. ±1.0% , VO2 typ. ±1.5%.
VO3 & VO4 typ. ±3.0-4.0%.
Noise & Ripple: Typ. 1% peak-peak or 50mV,
whichever is greater.
OVP: Built-in at all outputs.(Latch).
Adjustability: Available at VO1, VO2, VO3 & VO4.
Output Trim: Electrical trim available at VO1/ VO2.[ADJ #].
Remote Sensing: Available at VO1, VO2 & VO3.
Hot-Swap: Available.
N+1 Redundancy: Available with OR-ing diodes at all outputs
for N+1 redundancy.
Current Sharing: Third-wire current sharing at VO1,2 & 3.
Power OK Signal: Available for all outputs.
Over Current Protection (OCP): Installed at each rail.
Overload Protection (OLP): Fully protected against output
overload or short circuit. Typ. set at 120-150% max. load.
Consult the factory for special OLP setting.

GENERAL SPECIFICATION

Efficiency: Typ. 80 %.
Switching Frequency: 120K Hz.
Circuit Topology: Forward circuit.
Transient Response: Peak transient less than 250mV and
recovers within 1.0mS after 25% load-change.
Safety Standard: IEC 60950-1 Class I.
Construction: Eurocard 6U X 8HP X 160mm
CompactPCI format. Front Panel with Extractor handle.

Operating Temperature: 0 to +50 °C at full load with
specified air flow. Derates linearly to 50% at +70 °C
Storage Temperature: -40 to +85 °C.
Temperature Coefficient: Typ. ±0.02% / °C.
Cooling: At least 800lfm moving air is required to achieve
full rating power 500W in a confined area.
Power Density: 4.50 Watts/ Cubic Inch.