Homedatasheet48Q2540-2R

48Q2540-2R Datasheet

DC/DC Converter 5.1v 16a
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Description

Features, Applications

Input to output isolation Single output: Series 24Q...48Q1000 Double output: Series 24Q...48Q2000 Very high efficiency to 86% Flexible output power Excellent surge and transient protection Input to output electric strength test 2800 V DC Redundant operation (n+1), current sharing Extremely low inrush current, hot plug-in Externally adjustable output voltage and inhibit Very compact and fully functional unit (20 mm wide) Telecoms compatible input voltage range of 48Q units according to prETS (38...75 V DC) Safety in accordance to IEC/EN EN 41003 LGA

These extremely compact DC-DC converters incorporate all necessary input and output filtering, signalling and protection features which are required in the majority of industrial applications. The converters provide important advantages such as flexible output power through primary current limitation, very high efficiency, excellent reliability, very low ripple and RFI noise levels, full input to output isolation, negligible inrush current and input over-/undervoltage lockout. The outputs are continuously open-/short-circuit proof. An isolated output power good signal and an output OK LED at the front panel indicate the operation status. Full system flexibility and n+1 redundant operating mode are possible due to virtually unrestricted series or parallel connection capabilities of all outputs. In parallel connection of several units, automatic current sharing is provided by a single wire interconnection. As a modular power supply module or as part of a distributed power supply system, the low profile design significantly reduces the necessary power supply volume without sacrificing high reliability. The fully enclosed, black coated aluminium case acts as heat sink and RFI shield. The 19" cassette occupies 3U/4TE only, but can also be chassismounted by means of four M 3 screws.

Page Electromagnetic Compatibility (EMC)............................ 14 Immunity to Environmental Conditions........................... 15 Mechanical Data............................................................ 16 Safety and Installation Instructions................................ 17 Description of Option...................................................... 19 Accessories.................................................................... 19

Summary.......................................................................... 1 Type Survey and Key Data.............................................. 2 Type Key and Product Marking........................................ 3 Functional Description...................................................... 4 Electrical Input Data......................................................... 5 Electrical Output Data...................................................... 6 Auxilary Functions.......................................................... 10

Input Voltage Range and Efficiency 2 Ui min...Ui max hmin Ui min...Ui max 48Q2540-2R 48Q2660-2R

The cumulated power of both outputs may not exceed the total power for the specified ambient temperature. Efficiency at Ui nom, Io nom and = 25 �C. Output 1 and 2, in parallel configuration. Output 1 and 2, in series configuration. Symetrical configuration with second output semi-regulated (�5% Uo nom).

Output Configuration The Q unit design allows high flexibility in output configuration to cover almost every individual requirement, by simply wiring the outputs in parallel, series or symmetrical configurations as per following figures. For further information and for parallel and series operation of several modules refer to: Electrical Output Data.

Fig. 3 Series output configuration (negative sense at load only)
Fig. 4 Symmetrical common ground output configuration

Input voltage range Ui: 16...36 V DC............................................... 38...75 V DC............................................... 48 Series.............................................................................. Q Number of outputs: Single output................................................... 1 Double output.................................................. 2 Nominal voltage output 1 (main output), Uo1 nom 5.1 V................................................................ 0 12 V................................................................. 3 15 V............................................................. 5 24 V................................................................. 6 other voltages...................................... Other specifications for main output........................ 01...99 Symmetrical double output units: Nominal voltage output 2, Uo1/2 nom (24 V series connected)............... (30 V series connected)............... (48 V series connected)............... 60 other symmetrical voltages.................... 70...99 Operational ambient temperature range TA: �10...50 �C...................................................... -2 Output voltage control input (Auxiliary function)............. R Potentiometer (Option)..................................................... P

48Q2540-2P: DC-DC converter, input voltage range 38...75 V, double output, each providing 3.3 A, equipped with potentiometer and operating ambient temperature of �10...50 �C.

Note: All units feature the following auxiliary functions which are not shown in the type designation: Input and output filters, inhibit, sense lines, current sharing, out OK signal and LED indicator. Product Marking Basic type designation, applicable safety approval and recognition marks, CE mark, warnings, pin allocation of input, output and auxiliary functions, Melcher patents and company logo. Identification of LED and potentiometer. Specific type designation, input voltage range, nominal output voltage and output current and degree of protection. Label with batch no., serial no. and data code including production site, modification status and date of production. Confirmation of successfully passed final test.


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