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S24SE05004PTFH Datasheet(PDF) 8 Page - Delta Electronics, Inc. |
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S24SE05004PTFH Datasheet(HTML) 8 Page - Delta Electronics, Inc. |
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8 / 12 page  S24SE/S24DE series 20W Single/Dual Output DC/DC Converter DS_S24SE/S24DE 20W _10172013 E-mail:DCDC@delta.com.tw http://www.deltaww.com/dcdc P8 DESIGN CONSIDERATIONS Layout and EMI considerations Delta’s DC/DC power modules are designed to operate in a wide variety of systems and applications. For design assistance with EMC compliance and related PWB layout issues, please contact Delta’s technical support team. An external input filter module is available for easier EMC compliance design. Below is the reference design for an input filter to pass EN55022 (VDE0878) class A(both q. peak and average). L1=1uH C1=47uF/50V, electrolytic capacitor 1 MHz 10 MHz 150 kHz 30 MHz 10.0 20.0 30.0 40.0 50.0 60.0 70.0 0.0 80.0 dBμV Limits 55022MAV 55022MQP Transducer 8130 Traces PK+ AV Test Result: At T = +25 C , Typical input voltage and full load. Green is quasi peak mode; Blue is average mode. Recommended PCB Layout It is suggested to use multiple layers PCB and large size copper on system board which connect to pins of module, that can achieve better thermal performance. FEATURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will shut down (hiccup mode). The modules 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 corrected. Over-Voltage Protection The modules include an internal output over-voltage protection circuit, which monitors the voltage on the output terminals. If this voltage exceeds the over-voltage set point, the modules will shut down, and then restart after a hiccup-time (hiccup mode). If latch mode is needed, please contact with Delta. 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 module will shut down.The module will restart after the temperature is within specification. Remote On/Off The remote on/off feature on the module can be either negative or positive logic. Negative logic turns the module on during a logic low and off during a logic high. Positive logic turns the modules on during a logic high and off during a logic low. Remote on/off can be controlled by an external switch between the on/off terminal and the Vi (-) terminal. The switch can be an open collector or open drain. For negative logic if the remote on/off feature is not used, please short the on/off pin to Vi (-). For positive logic if the remote on/off feature is not used, please leave the on/off pin to floating. |
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