Home datasheet 48H1301-2R

48H1301-2R

DC/DC Converter 50w 5.1v 8a
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Description

Features, Applications

Single output: series 12H/24H/48H1000 Double output: series 12H/24H/48H2000 Triple output: series 12H/24H/48H3000 Wide input voltage range suitable for battery operation Efficient input filter and built-in surge and transient suppression circuitry 3 kVrms input to output electric strength test Outputs individually isolated Outputs fully protected against overload Safety according to IEC/EN 60950 LGA

The H series of DC-DC converters represents a broad and flexible range of power supplies for use in advanced electronic systems. Features include high efficiency, reliability and reasonable output voltage noise. The converter inputs are protected against surges and transients occuring at the source lines. An input over- and undervoltage cut-out circuitry disables the outputs if the input voltage is outside the specified range. All outputs are open- and short-circuit proof and are protected against overvoltages by means of built-in suppressor diodes. The outputs can be inhibited by a logic signal applied to the connector pin 2 (i). If the inhibit function is not used pin 2 should be connected to pin 23 to enable the outputs. LED indicators display the status of the converter and allow visual monitoring of the system at any time. Full input to output, input to case, output to case and output to output isolation is provided. The modules are designed and built according to the international safety standard

IEC/EN 60950 and have been approved by the safety agencies LGA (Germany) and UL (USA). The UL Mark for Canada has been officially recognized by regulatory authorities in provinces across Canada. The case design allows operation at nominal load in a free air ambient temperature. If forced cooling is provided, the ambient temperature may exceed 50 �C but the case temperature should remain below 80 �C under all conditions. A temperature sensor generates an inhibit signal which disables the outputs if the case temperature TC exceeds the limit. The outputs are automatically re-enabled when the temperature drops below the limit. Various options are available to adapt the converters to individual applications. The modules may either be plugged into 19 inch rack systems according to DIN or be chassis mounted.

Page Electromagnetic Compatibility (EMC)............................ 10 Mechanical Data............................................................ 11 Immunity to Environmental Conditions........................... 12 Safety and Installation Instructions................................ 12 Description of Options.................................................... 15 Accessories.................................................................... 19

Summary.......................................................................... 1 Type Survey and Key Data.............................................. 2 Type Key.......................................................................... 2 Functional Description...................................................... 3 Electrical Input Data......................................................... 4 Electrical Output Data...................................................... 5 Auxiliary Functions........................................................... 8

Type Key Input voltage range 8...15 V DC............. 14...30 V DC............. 28...60 V DC............. 48

Single output modules................................................... 01 12 V............. 20 Output 2 and 3, Uo2 nom, Uo3 nom: 15 V............. 40 Options and features: Ambient temperature range TA �10...50 �C..................... -2 Extended temperature range TA �25...71 �C.................... -7 Output voltage control input (single output modules only)R Save data signal to be specified)..................... D 1 ACFAIL signal to be specified)........................... V 1

48H1501-2RD3: DC-DC converter, input voltage range 28...60 V, providing output with V/3.4 A; equipped with an output voltage control input and undervoltage monitoring.

The input voltage is fed via an input filter to the input capacitor. This capacitor sources a single transistor forward converter. Each output is powered by a separate secondary winding of the main transformer. The resultant voltages are rectified and their ripples smoothed by a power choke. The control logic senses the main output voltage Uo1 and generates, with respect to the maximum admissible output currents, the control signal for the primary switching transistor.

This signal is fed back via a coupling transformer. The auxiliary outputs Uo2 and Uo3 are unregulated. Each auxiliary output's current is sensed and transferred to the main control circuit using a current transformer. If one of the outputs is driven into current limit, the other outputs will reduce their output voltages as well because all output currents are controlled by the same control circuit.

CMKT Current limitation output 2 CMKT Current limitation output

Features

Parameters

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Warm Hint

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