-19-

H HiTRON

36-72VDC INPUT RANGE DC-DC CONVERTER HOT-SWAP CompactPCI

QUAD OUTPUT 250 WATTS ACTIVE CURRENT SHARING SWITCHING

POWER SUPPLIES HDC250P-48B SERIES

FEATURES:

250W 3U 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 / FCC CLASS B

CE MARKING COMPLIANCE

FULLY COMPLIANT WITH PICMG

GENERAL SPECIFICATION

Efficiency: Typ. 79 %.

Switching Frequency: 120K Hz.

Circuit Topology: Forward circuit.

Transient Response: Peak transient less than 100mV

and recovers within 2mS for 25% load-change.

Safety Standard: IEC 60950-1 Class I.

Construction: Eurocard 3U X 8HP X 160mm

CompactPCI format. Front panel with either

Ordinary handle or Extractor handle.

Operating Temperature: 0 to +50 °C at full load

with specified air flow.

Deraes linearly to 50% at +70°C.

Storage Temperature: -40 to +85 °C.

Temperature Coefficient: Typ. ±0.02% / °C.

Cooling: At least 16 cfm (500 lfm) moving air is

required to achieve full rating power 250W

in a confined area.

Power Density: 4.58 Watts/ Cubic Inch.

Note: Due to requests in market and advances in technology, specifications subject to change without notification.

OUTPUT SPECIFICATION

Output Voltage: See Ratings Chart.

Output Current: See Ratings Chart.

Output Wattage: Typ. 250W continuous.

Output Connector: Positronic 47-pin PCIH47M400A1.

Line Regulation: Typ. 0.1%.

Load Regulation: Typ. ±2.0%.

Noise & Ripple: Typ.1% Pk.-Pk. or 50mV,

whichever is greater.

OVP: Built-in at all outputs.

Adjustability: Available at VO1,2&3.

Output Trim: Electrical trim available at VO1/2.[ADJ #]

Remote Sensing: Available at VO1,VO2 & VO3.

Hot-Swap: Available.

N+1 Redundancy: Installed with internal OR-ing diodes at

all outputs for N+1 redundancy operation.

Current Sharing: Third-wire current sharing at VO1,2&3.

Power OK Signal: Available for all outputs.

Over Current Protection (OCP): Installed in each rail.

Overload Protection (OLP): Fully protected against output

overload or short circuit. Typical 120% max. load.

Consult the factory for special OLP setting.

SPECIFICATION

INPUT SPECIFICATION

Input Voltage: Typ. 36-72Vdc,nominal input 48Vdc.

Input Connector: Positronic 47-pin PCIH47M400A1.

Inrush Current: Typ. 20A @ nominal 48Vdc.

Input Current: 6.6A @ nominal input 48Vdc.

Dielectric Withstand: Meet IEC 60950-1 regulation.

EMI: Meet EN 55022 / FCC Class B.

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.

For the details of safety approval, please consult the factory.