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B40SR12424b Datasheet(PDF) 6 Page - Delta Electronics, Inc. |
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B40SR12424b Datasheet(HTML) 6 Page - Delta Electronics, Inc. |
6 / 17 page DS_B40SR12424_10282016 E-mail: dcdc@deltaww.com http://www.deltaww.com/dcdc P6 FEATURES DESCRIPTIONS Output Over-Current Limit and Short Protection The modules include internal output over-current limit (OCL) and short circuit protection (SCP) circuits, the OCL set point is lower than that of the SCP; The response of SCP circuit is much fast than that of the OCL circuit. The slowly increase of the output current will let module enter OCL protection when the current exceeds the OCL set point, while the fast increase of the output current will let module enter SCP when the current exceeds the SCP set point. When the modules enter OCL protection, the output voltage will decrease while the output current is kept constant, the output voltage will soft start to set point when the overload condition is removed. The module will enter hiccup mode when it triggers the SCP set point. The module will try to restart after shutdown. If the overload condition still exists, the module will shut down again. This restart trial will continue until the overload condition is removed. Output Over-Voltage Protection The power module includes an internal output over-voltage protection(OVP) circuit, which monitors the voltage on the output terminals. If this voltage exceeds the OVP set point, the module will shut down, and then restart after a fixed delay time (hiccup mode), please refer to figure8 for detail. Over-Temperature Protection The over-temperature protection consists of circuitry that provides protection from thermal damage. If the temperature exceeds the preset temperature threshold the module will shut down,and all components will not exceed their absolute maximum temperature ratings.The module will restart after the temperature is within specification. Remote On/Off B40SR12424C has Enable control function. This Enable PIN is designed on the primary side of converter, the converter will turn on when the Enable PIN connected to VIN+, and turn off when the Enable PIN connected to VIN- or floating. Figure 16: suggested Enable connection Input Reverse Voltage Protection The input reverse voltage protection is provided by an diode on the input line, the standoff voltage for the reverse protection shall be no less than -60V. |
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