DC-DC Conduction cooled Features Input ranges: 9-50Vdc, 18-36Vdc, 16-50Vdc 1 output 3V3 to 48Vdc, 320W max. 50*160*25mm Automatic reverse polarity, Surge and transient protected -40°C to 100°C baseplate -MV Option: MILSTD1275 and Severe environment Parallel and series operation up to few kWatts Safety IEC/EN 62368-1, RoHS lead-free-solder compliant RoHS Description PST14X, very high power density 320W DC-DC converter in conduction cooled format, incorporates input EMI filtering, input transient protection, output protections, very robust mechanical package and connection required in most of the severe environment for industrial, railways, defense type of applications. The converter provides high power density thanks to the integration of Vicor Corp. DCM modules, high efficiency, input-to-output isolation, soft start, overtemperature protection, input over/undervoltage lockout. The outputs are short-circuit proof. The 100°C baseplate operation allows operation in high temperature environment. The output can be configured in many different output voltages from 3,3V to 48Vdc, others possibilities are even possible as semistandard versions. With the -MV option, the converter is protected against surges and transients MIL-STD704 and MIL-STD-1275, EMI filtered built to meet MIL-STD 461 and ruggedizzed according MIL-STD-810. MIL-STD1275 Active Transient Protection (-M Option) +IN Output Filter Transient Protection and EMI Filtering Active Reverse Polarity Protection Isolated DC-DC Conversion Inhibition Powergood Remote Senses Output voltage adjustment Input Led Output Led Sharing Signals & Monitoring

A Transil diode and a common mode input filter form an effective protection against input fast transients in severe environments like railways. When -MV option is defined for PST14X, the unit incorporates an active protection circuit against high energy transient MIL STD 1275, DO160. Input Fuse A fuse mounted inside the converter protects against damages in case of a failure. The fuse is not user-accessible. Input Reverse Polarity An active Mosfet circuit placed internally at the input will block the current in case of reversed polarity, no damage to the unit and unit will come back to normal...

General conditions : 25°C ambiant. 1) Latched shutdown - 2) Output voltage falls < 95 % of nominal - 3) Nominal input, full load, 20MHz bandwidth - 4) Nominal input, full load - 5) No load to full load, nominal input Output Current Limitation See Electrical output data for current limitation value according part-number. The converter output is continously protected against short-circuit or current limitation by disabling the power train when ouput current goes above the value from the table page 3. When the default disappear, the converter will go back to normal operation after initialization....

Thermal protection Parallel and Series Connection A converter output can be connected in series with an output from a separate converter, a diode across each output may be implemented externally (Cathode to +OUT) to provide continuity in case of one failure. The maximum output current of a serial-connected outputs is limited by the output with the lowest current limit. Output voltages above 48V (SELV - Safety Extra Low Voltage) require additional safety measures in order to comply with international safety requirements. Before revision 5(IND05): Parallel operation is possible up to 8 PST14X to...

Inhibit (Remote On/Off) The inhibit input pin enables the converter when logic low or left opened circuit between INH and INH RTN. The converter will be disabled when logic high 5V-50Vmax. between INH and INH RTN. This signal is referenced to the input voltage and will disable all outputs at the same time when the same signal is used for several converters. In systems consisting of several converters, this feature may be used to sequence the activation of the different converters if inhibition is used separately. Output Voltage Adjustment The converter output voltage can be adjustable by potentiometer,...

Environmental Functionalities and compliance table Input 12V Conditions Droop current share with CIE POB accessories Droop current share with CIE POB accessories Parallel operation Redundant operation Series operation Remote senses Conformal coating -40°C Operation MIL-STD-704 A,C,D,E,F, 28V Steady State built to meet, -MV option MIL-STD-704 A,C,D,E,F 28V Surges High Transients built to meet, -MV option MIL-STD-704 A,C,D,E,F 28V Surges Low Transients built to meet, -MV option MIL-STD-704 C,D,E,F 28V Surges Low Transients built to meet, -MV option built to meet, -MV option MIL-STD-810E (Shocks,...

Electromagnetic Electromagnetic Emissions EN55022B, peak detector, average and quasi-peak limit, PST14X24-48320, nominal line and power MIL STD461 CE102, peak detector, 28V limit, PST14X28-48320-MV, nominal line and power

Safety and Installations Instructions Before revision 5 (IND05) Connector Pin Allocation Wurth P/N7461093 Input/Output Connector

Installations Instructions Cleaning Agents and Process These converters are components, intended exclusively for integration into other equipment by an industrial assembly process or by a professionnaly competent person. Installation must strictly follow the safety regulations in respect of the enclosure, mounting, creepage and clearance distances, markings of the end-use application. Connection to the system shall be made via appropriate connection. The +Vin is internally fused. This fuse is designed to protect the converter against overcurrent caused by a failure, but may not be able to satisfy...

Two PST14X in parallel operation Note: PINOUT of signals for CIE 14X-PIB is same as J4 of individual unit. PINOUT of CIE 14X-POB (Picoblade 530480210 Pin1 PGD, Pin2 PGD RTN) 4x Sauf indication contraire les côtes sont en mm / All cotations are in mm C Copyright Power System Technology Ce document est la propriété de Power System Technology et ne peut être ni reproduit, ni communiqué à des tiers sans l'accord écrit d'une personne dûment mandatée par ladite société This document is property of Power System Technology. It may not be copied or shown to anyone without prior approval of that company....