NMPD0112C

www.murata-ps.com NMPD01 Series OBSOLETE Power ow Over Ethernet PD Module SELECTION GUIDE Order Code Nominal Input Voltage V Output Voltage V Efficiency1 (Min.) % Power (Max.) W NMPD0103C NMPD0105C NMPD0112C NMPD0115C 48 48 48 48 3.4 5.1 12.1 15.1 74 77 80 79 9.50 9.75 10.00 10.00 INPUT CHARACTERISTICS Parameter FEATURES „ RoHS Compliant „ IEEE802.3af full functional compliance „ Short circuit protection „ Isolated DC out „ 3.3V, 5V, 12V & 15V output options „ On board UL recognised DC/DC converter Specified operating range Turn on threshold Turn off threshold Input reflected ripple 802.3af Power classification Signature resistance Signature capacitance Classification current Conditions Voltage rising Voltage falling Min. 36 36 30 Typ. Max. 40 31 57 42 33 50 Units mV p-p V Class 0 23.75 50 100 26.25 120 4 kΩ nF mA Min. Typ. Max. Units 1.6 % OUTPUT CHARACTERISTICS Parameter Conditions Voltage set point accuracy 100% load after 30 mins at nominal supply voltage „ UL 94V-0 flammability Overall voltage error Case temperature -40ºC to 110ºC Load 0% - 100% Input specified range 1 2.5 % PRODUCT OVERVIEW Temperature coefficient of output voltage (slope) Over any 10ºC span within the specified temperature range 50 250 ppmºC Deviation of output voltage Specified over temperature MINMAX 0.5 1 % 0.05 0.1 0.5 „ Thermal shutdown „ Output voltage present LED The NMPD01 series of power extraction modules has full functional compliance with IEEE802.3af. They are designed to extract power from CAT5 Ethernet cable when sourced by a Power Sourcing Equipment (PSE) also conforming to IEEE802.3af. The NMPD01 series removes the need for localised equipment power source, significantly reducing installation costs. The IEEE802.3af standard allows for two power options, one on the data lines, the other on the spare pair (see figures 1 and 2). The NMPD01 series can have voltage input on the data lines or spare pairs. The NMPD01 series provides full signature and control as required by the PSE. Line regulation Load Regulation Ripple Switching frequency Operating voltage range, 50% load 0% - 100% rated load rms 330 70 350 395 % % mV kHz Min. Typ. Max. Units COUPLING CHARACTERISTICS Parameter Conditions Insertion loss 1-100MHz 1-30MHz, at 100Ω 40MHz, at 100Ω 50MHz, at 100Ω 60-80MHz, at 100Ω 30MHz 60MHz 100MHz 30MHz 60MHz 100MHz Return Loss Differential to common mode rejection Cross talk DC resistance balance -1.2 -16 -14 -13 -12 -43 -37 -33 -45 -40 -35 dB ≤3.5% ABSOLUTE MAXIMUM RATINGS 　 For full details go to www.murata-ps.com/rohs www.murata-ps.com Input voltage Output voltage ±60V -0.3V to controlled output voltage (operating or non-operating) All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. 1. Nominal VIN, full load. Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KII_NMPD01.E01 Page 1 of 5 NMPD01 Series Power Over Ethernet PD Module ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Flash tested for 60 seconds 1500 TEMPERATURE CHARACTERISTICS Parameter Conditions Ambient temperature DC/DC case temperature Storage Relative humidity Thermal protection Min. 0 -40 -40 Full load Absolute Max. internal temperature Non condensing 85ºC Operates at case temperature Typ. Max. Units VAC rms Typ. Max. Units 70 110 125 85 ºC % ºC 110 THERMAL CHARACTERISTICS Max. power rating with case temperature maintained by external means (e.g. forced air cooling). Part Number NMPD0103C NMPD0105C NMPD0112C NMPD0115C 100ºC Case Temperature 105ºC 110ºC 9.5 9.75 10 10 7.0 4.7 8.0 7.5 1.0 1.0 0 0 Units W DC/DC THERMAL PERFORMANCE 12 Output Power (W) 10 8 NMPD0103C NMPD0105C NMPD0112C 6 NMPD0115C 4 2 0 -40 -20 0 20 40 60 80 100 120 Ambient Temperature (ºC) www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KII_NMPD01.E01 Page 2 of 5 NMPD01 Series Power Over Ethernet PD Module TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NMPD01 series of power over ethernet modules are all 100% production tested at their stated isolation voltage. This is 1500VAC for 60 seconds. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The NMPD01 series has an on-board DC/DC converter, that has been recognized by Underwriters Laboratory. Both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. While manufactured parts can withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. APPLICATION NOTES The NMPD01 series are ideal modular system blocks for integration into numerous ethernet products to be powered from the data lines. These modules eliminate the need for localised powering saving considerable installation costs and time. These modules are ideal for applications where powering from the PSE at an SELV level is highly desirable such as in harsh industrial environments (chemicals and moisture). Offering a module solution, incorporating ethernet isolation transformers, full compatibility signature to the PSE and isolated on-board DC/DC converter the NMPD01 series offers simple and quicker product development, maximising return on investment. PoE is the emerging standard in what is in effect the widest form of distributed power architecture. Power-Up Sequence A PSE applies two separate input voltages of