National Semiconductor LM5072 Manual Download | Manualshive

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FIGURE 4. PCB Board Outline

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FIGURE 5. Layout Drawing

9.0 Waveforms

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LM5072

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Summary of Contents for LM5072

Page 1: ... PD In either case the regulated 12Vdc will turn off the LM5072 and can reduce power losses from the converter and the PoE line The LM5072 s RAUX configuration is utilized for the 24V AUX input port to bypass the internal hot swap MOSFET allowing the 800mA current limit of the LM5072 to be ignored This allows the input voltage for the 24V AUX input port to go down to 16Vdc and up to 60Vdc A key fu...

Page 2: ...2 20K R12 0 33 R12 0 33 R23 21 5k R23 21 5k Q3 BC817 16 Q3 BC817 16 C3 4 7uF 100V C3 4 7uF 100V D1 CMSH3 60M D1 CMSH3 60M J3 PoE J3 PoE 1 2 3 4 5 6 7 8 R24 680ohm R24 680ohm R6 140k R6 140k C6 22uF C6 22uF R19 NI R19 NI U1 LM5072 U1 LM5072 OUT 9 nPGOOD 11 CS 12 VIN 3 SS 2 RT 1 COMP 15 ARTN 16 ICL_FAUX 5 FB 14 DCCL 6 RTN 8 VCC 10 VEE 7 RCLASS 4 RAUX 13 EP D5 CMMR1F 02 D5 CMMR1F 02 R8 33ohm R8 33ohm...

Page 3: ...5 0 Bill of Materials bom FIGURE 2 BOM 3 www national com LM5072 ...

Page 4: ...utput power Pout 25 W Steady State Efficiency Efficiency 85 Control scheme Control scheme current Mode Peak to peak ripple voltage Vout p p 50 mV Static load regulation Static load 100 mV Dynamic load regulation Dynamic load 250 mV 7 0 Board Photos boardphoto1 FIGURE 3 Eval board Photo 8 0 Layouts www national com 4 LM5072 ...

Page 5: ...layout FIGURE 4 PCB Board Outline layout1 FIGURE 5 Layout Drawing 9 0 Waveforms 5 www national com LM5072 ...

Page 6: ...waveform FIGURE 6 DC to DC Converter Efficiency at PoE Input www national com 6 LM5072 ...

Page 7: ...waveform1 7 www national com LM5072 ...

Page 8: ...waveform2 FIGURE 8 DC to DC Converter Efficiency at 24V AUX Input www national com 8 LM5072 ...

Page 9: ...waveform3 FIGURE 9 Overall Efficiency at 24V AUX Input 9 www national com LM5072 ...

Page 10: ...waveform4 FIGURE 10 Ripple and Noise www national com 10 LM5072 ...

Page 11: ...10 0 Physical Dimensions inches millimeters unless otherwise noted 11 0 Appendix diagram FIGURE 11 Power Block Diagram for IP Camera 11 www national com LM5072 ...

Page 12: ...AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYS TEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICON DUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which a are intended for surgical implant into the body or b support or sustain life and whose failure to perform when properly used in a...

Page 13: ...ring the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Page 14: ... by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la rég...

Page 15: ... connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cu...

Page 16: ...F REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Page 17: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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