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Q48SC12042NRAH Datasheet(PDF) 10 Page - Delta Electronics, Inc. |
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Q48SC12042NRAH Datasheet(HTML) 10 Page - Delta Electronics, Inc. |
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10 / 26 page  DS_Q48SC12042_04062017 E-mail: dcdc@deltaww.com http://www.deltaww.com/dcdc P10 Output Overvoltage Protection The module can detect and respond to output overvoltage conditions. If the overvoltage condition causes the output voltage to rise above the limit in the Specifications Table, the module will shut down. The modules will try to restart after shutdown. If fault condition still exists, the modules will shut down again. This restart trial will continue until the fault condition is corrected. The Vo OVP function could be changed via PMBUS. The command related to Vo OVP function are VOUT_OV_WARN_LIMIT, VOUT_OV_FAULT_LIMIT and VOUT_OV_ FAULT _RESPONSE. Input Over Voltage Lockout The module can detect and respond to input overvoltage conditions. If the input voltage rises above the limit in the Specifications Table, the module will shut down. The module is factory default configured for auto-restart operation. The auto-restart feature continually monitors the input voltage and will restart the module when the level falls 6V below the Input OVP level. The Vin OVP function could be changed via PMBUS. The command related to Vin OVP function are VIN_OV_FAULT_LIMIT and VIN_OV_FAULT_RESPONSE Remote ON/OFF (ENABLE) The remote ON/OFF (ENABLE) feature on the module is negative logic. The low logic turns the modules on. And the high logic, or floating, turns the modules off. Remote ON/OFF (ENABLE) can be controlled by an external switch between the on/off terminal and the Vin(-) terminal. The switch can be an open collector or open drain. FEATURES DESCRIPTIONS Over-Power Protection The modules include an internal output over-power protection circuit, which will endure power limiting for an unlimited duration during output overload. If the output current exceeds the OCP set points, the modules will automatically shut down (hiccup mode). The modules will try to restart after shutdown. If the overload condition still exists, the modules will shut down again. This restart trial will continue until the overload condition is corrected. The OCP function could be changed via PMBUS. The command related to OCP function are IOUT_OC_WARN_LIMIT, IOUT_OC_FAULT_LIMIT and IOUT_OC_ FAULT _RESPONSE. Over-Temperature Protection The over-temperature protection consists of circuitry that provides protection from thermal damage. If the temperature exceeds the over-temperature threshold, the modules will shut down, and enter the auto-restart mode. For auto-restart mode, the module will monitor the module temperature after shutdown. Once the temperature of module is decreased by an OTP hysteresis, the module will restart. The OTP function could be changed via PMBUS. The command related to OTP function are OT _WARN_LIMIT, OT_FAULT_LIMIT and OT_FAULT _RESPONSE. Input Under Voltage Lockout When Vin exceeds Vin turn on threshold, the module output is enabled, when Vin falls below Vin turn off threshold, the module output is disabled. Vin turn on threshold and Vin turn off threshold can be reconfigured via the PMBus interface. The Vin UVP function could be changed via PMBUS. The command related to Vin UVP function are VIN_ON and VIN_OFF. |
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