NPH10S4803IC

NPH10S Series www.murata-ps.com Isolated 10W Single Output DC-DC Converters „ UL1950 recognized „ Industry standard pinout „ Surge rating to 12W „ Non latching current limit MTTF 3 „ Power density up to 1.5Wcm3 Max. Load Capacitance „ High efficiency to 87% Current Limit 2 (Typ.) Efficiency „ RoHS compliant Output Current FEATURES Output Voltage Order Code1 Nominal Input Voltage SELECTION GUIDE V V A A % μF kHrs 24 24 24 24 24 24 24 24 48 48 48 48 3.4 3.4 5.1 5.1 12.1 12.1 15.1 15.1 3.4 3.4 5.1 5.1 2.94 2.94 1.96 1.96 0.83 0.83 0.67 0.67 2.94 2.94 1.96 1.96 4.3 4.3 3.1 3.1 1.2 1.2 1.1 1.1 4.1 4.1 2.8 2.8 79 79 83 83 86 86 86 86 80 80 83 83 470 470 470 470 100 100 47 47 470 470 470 470 279 279 275 275 259 259 243 243 317 317 312 312 NPH10S2403EiC NPH10S2403iC NPH10S2405EiC NPH10S2405iC NPH10S2412EiC NPH10S2412iC NPH10S2415EiC NPH10S2415iC NPH10S4803EiC NPH10S4803iC NPH10S4805EiC NPH10S4805iC „ 1.5kV input to output isolation „ Versatile control options „ Continuous rating to 10W at 72ºC without heatsink NPH10S4812EiC NPH10S4812iC NPH10S4815EiC NPH10S4815iC 48 48 48 48 12.1 12.1 15.1 15.1 0.83 0.83 0.67 0.67 1.3 1.3 1.0 1.0 86 86 87 87 56 56 22 22 291 291 272 272 Recommended Alternative UEI15-120-Q48P-C UEI15-120-Q48P-C UEI15-150-Q48P-C UEI15-150-Q48P-C „ Operation to zero load „ Protected against load faults „ Internal over temperature protection INPUT CHARACTERISTICS Parameter Conditions Voltage range Continuous operation, 24V input types Continuous operation, 48V input types4 „ Uses no electrolytic capacitors „ Fixed frequency OUTPUT CHARACTERISTICS „ No external components required Parameter Conditions Voltage set point error 50% load after 30 mins at nominal supply voltage DESCRIPTION The NPH10S series of DC-DC converters combines ease of application with versatility. The pin pattern is based on the popular industry standard, but two additional pins may optionally be fitted to provide a variety of features not commonly found on units of this type. High efficiency enables full rating to be achieved in a small package without heatsinking. Thermally protected against sustained overload. The copper case achieves efficient heat transfer and screening. The product range has been recognised by Underwriters Laboratory (UL) to UL 1950 for operational insulation, file number E151252 applies. 　 For full details go to www.murata-ps.com/rohs Overall voltage error Case temperature -40ºC to 110ºC Load 0% - 100% Input specified range Temperature coefficient of output voltage (slope) Deviation of output voltage Over any 10ºC span within the specified temperature range Specified over temperature MIN-MAX Line regulation Load Regulation Ripple Operating voltage range, 50% load 0% - 100% rated load5 rms Min. Typ. Max. Units 18 36 24 48 36 75 V Min. Typ. Max. Units 0.5 % 1 2.5 % 50 250 ppmºC 0.5 1 % 0.05 0.1 0.5 % % mV 70 ABSOLUTE MAXIMUM RATINGS Input voltage, 24V input types Input voltage, 48V input types Output voltage Output trim control Synchronisation/shutdown control -0.5V to 40V 6 -0.5V to 80V 6 -0.3V to controlled output voltage (operating or non-operating) -1V to +30V ±15V relative to input return 1. Parts ending with EiC have optional TRIM and SS pins fitted. 2. Current is quoted when output is 95% of regulated voltage. 3. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 4. For applications requiring UL 1950 recognition, input voltage must not exceed 60VDC. 5. A minimum load of 10% of rating is recommended for typical applications. 6. Absolute maximum value for 30 seconds. Prolonged application may damage the product. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com/support KDC_NPH10SC.J05 Page 1 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters CONTROL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Voltage trimming range1 Remote switch input (voltage relative to input negative)1 At rated load, trim control at either output For shutdown Operating, open circuit voltage ±10 -15 9 0 10 1.5 11 Start delay Time from application of valid input voltage to output being in specification Synchronisation1 Switching frequency Isolation test voltage Resistance Capacitance V ms 320 330 350 440 395 kHz kHz Conditions Min. Typ. Max. Units Flash tested for 1 second VISO = 500VDC 3.3V and 5V output 12V and 15V output 1500 1 VDC GΩ 50 90 TEMPERATURE CHARACTERISTICS Parameter Conditions Case temperature Storage Relative humidity Thermal protection % 25 Specified drive signal ISOLATION CHARACTERISTICS Parameter Units Min. Full load Absolute Max. internal temperature Non condensing 85ºC Operates at case temperature pF Typ. Max. -40 -40 Units 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 100ºC Case Temperature 105ºC 110ºC 10 10 10 12 10 10 12 12 7.0 8.2 9.5 9.5 7.0 4.7 8.0 7.5 2.3 3.0 4.0 4.0 1.0 1.0 0 0 NPH20S2403XXX NPH10S2405XXX NPH10S2412XXX NPH10S2415XXX NPH10S4803XXX NPH10S4805XXX NPH10S4812XXX NPH10S4815XXX Units W W THERMAL PERFORMANCE 24V Input 48V Input     0VUQVU
1PXFS
8 0VUQVU
1PXFS
8                   "NCJFOU
5FNQFSBUVSF
¡$             "NCJFOU
5FNQFSBUVSF
¡$ 1. Optional - where fitted. www.murata-ps.com/support KDC_NPH10SC.J05 Page 2 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters APPLICATION NOTES OUTPUT VOLTAGE ADJUSTMENT The trim resistor equations are: Rup = (R/Vup) - S kΩ Rdown = (L x T ) - T - S kΩ Vdown TRIM UP VNOM 3.4 5.1 12.1 15.1 S T R L 22.2973 10.1351 17.9994 -1.6241 20.59761 9.36255 24.49487 -2.48374 28.79096 15.42373 94.9661 -5.942857 39.95902 20.77869 147.7314 -7.990244 TRIM DOWN +VOUT +VIN +VOUT +VIN TRIM NPH10S RDOWN NPH10S RUP TRIM -VOUT -VOUT When the output voltage is trimmed up, output current must be derated so that the maximum output power 10W is not exceeded. Example to decrease output voltage of NPH10S4805EiC by 0.1V: RDOWN = -2.48374 x 9.36255 - 9.36255 - 20.59761 = 203.18kΩ -0.1 ( ) SET VOLTAGE The output voltage of all units is set to 100mV above nominal, to offset resistive losses and thus assist with worst case error calculations. For the EiC versions, this allowance can be altered with a single fixed resistor, connected from the trimming pin to one of the output pins. SHUTDOWN When the shutdown pin (SS) is shorted to the negative input, the converter will stop. Its current consumption will then be less than 1mA at nominal supply voltage. The voltage must be less than 1.5V to ensure that the unit stops, and must be able to sink at least 1mA. The unit will restart if the control pin is left open circuit or raised to a value close to its normal open circuit voltage. This is typically 10V. Note however, that the unit will not meet specification while a significant current drain from this pin remains. If the shutdown pin is to be connected to a long wire, it is recommended that a capacitor decouples the pin to the supply common in order to avoid the risk of injecting noise into the converter circuit. A series resistor may also be helpful. Values of 10nF and 1kΩ may be used. FREQUENCY CONTROL If the primary side dc control voltage is pulled away from its open circuit voltage, the converter frequency will be changed, approximately in proportion to the voltage. With +8.5VDC voltage to SS pin, the typical switching frequency will be 300kHz. If this is raised to 15VDC, the switching frequency will typically be 510kHz. The frequency may thus be moved away from a sensitive value or into a safe area. Deviation of at least –10% to 30% is achievable, though the efficiency will decline with significant changes. Also note that if the frequency is lowered, the switching frequency component of output ripple will increase. Since the design uses no large electrolytic capacitors, any use of a lower frequency must allow for the effects of increased ripple. Additional external filtering may be required. Many NPH series converters may be switched together simply by linking the primary control pins. The primary common pins must also be linked. www.murata-ps.com/support KDC_NPH10SC.J05 Page 3 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters APPLICATION NOTES (continued) SYNCHRONISATION The converter frequency may be synchronised to an external frequency by connecting a negative going pulse to the SS pin. The drive signal is typically 8V to 12V amplitude and 100ns to 200ns duration. A suitable circuit consists of a CMOS timer (TLC555) connected as an oscillator or as a pulse shaper. Its logic output (not the discharge output) should be connected via a 4.7nF capacitor to the converter pin. The synchronised frequency is above the free running value. However, the free running frequency can be lowered, so that synchronisation may include frequencies near or below the natural value. An example of a practical circuit is shown below, which uses a zener diode to lower the natural frequency. Several converters of this family may be synchronised from the same reference provided the waveform can be maintained by the use of an adequate driver circuit. If the rise time is more than 20ns, for example, synchronisation may not be achieved over the specified frequency range. For best efficiency, set the frequency within the specified range of its natural state. 7 $ O'
7 07  4FU
'SFRVFODZ 3 L 73 L $ Q'
7 3 3 $ O'
7   $
O'
7    44 %
/  ;% #;9$7 07 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 NPH10S series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1500V DC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The NPH10S series 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. www.murata-ps.com/support KDC_NPH10SC.J05 Page 4 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters EMC FILTERING AND SPECTRA FILTERING The module includes a basic level of filtering, sufficient for many applications. Where lower noise levels are desired, filters can easily be added to achieve any required noise performance. A DC-DC converter generates noise in two principle forms: that which is radiated from its body and that conducted on its external connections. There are three separate modes of conducted noise: input differential, output differential and input-output. This last appears as common mode at the input and the output, and cannot therefore be removed by filtering at the input or output alone. The first level of filtering is to connect a capacitor between input and output returns, to reduce this form of noise. It typically contains high harmonics of the switching frequency, which tend to appear as spikes on surrounding circuits. The voltage rating of this capacitor must match the required isolation voltage. (Due to the great variety in isolation voltage and required noise performance, this capacitor has not been included within the converter.) Input ripple is a voltage developed across the internal Input decoupling capacitor. It is therefore measured with a defined supply source impedance. Although simple series inductance will provide filtering, on its own it can degrade the stability. A shunt capacitor is therefore recommended across the converter input terminals, so that it is fed from a low impedance. If no filtering is required, the inductance of long supply wiring could also cause a problem, requiring an input decoupling capacitor for stability. An electrolytic will perform well in these situations. The input-output filtering is performed by the common-mode choke on the primary. This could be placed on the output, but would then degrade the regulation and produce less benefit for a given size, cost, and power loss. Radiated noise is present in magnetic and electrostatic forms. The latter is suppressed by the metal case, which is connected to the output return, typically a zero-volt point. Thanks to the small size of these units, neither form of noise will be radiated “efficiently”, so will not normally cause a problem. Any question of this kind usually better repays attention to conducted signals. EMC FILTER AND VALUES TO OBTAIN SPECTRA AS SHOWN - - $ $ $ N) " %$ $ %$ - O'

7"$
:
SBUFE O'

7"$
:
SBUFE Component reference C1 C2 C3 C4 NPH10S2403 10μF 100V 47μF 63V 2.2μF 63V 10μF 25V NPH10S2405 10μF 100V 47μF 63V 2.2μF 63V 10μF 25V NPH10S2412 10μF 100V Not required 470nF 63V 10μF 25V NPH10S2415 10μF 100V 10μF 63V Not required 10μF 25V NPH10S4803 10μF 100V 47μF 100V 220nF 100V 10μF 25V NPH10S4805 10μF 100V 47μF 100V 220nF 100V 10μF 25V NPH10S4812 10μF 100V Not required 470nF 100V 10μF 25V NPH10S4815 10μF 100V Not required 470nF 100V 10μF 25V L1 L2 MPS 18R333C 33μH 2A MPS 18R333C 33μH 2A MPS 18R333C 33μH 2A MPS 18R473C 47μH 1.65A MPS 18R104C 100μH 1.2A MPS 18R104C 100μH 1.2A MPS 18R104C 100μH 1.2A MPS 18R104C 100μH 1.2A L3 MPS 18R472C 4.7μH 5.35A MPS 18R103C 10μH 3.45A MPS 18R333C 33μH 2.00A MPS 18R333C 33μH 2.00A MPS 18R472C 4.7μH 5.35A MPS 18R103C 10μH 3.45A MPS 18R333C 33μH 2.00A MPS 18R333C 33μH 2.00A C1, C2 & C4 : Electrolytic capacitors C3 : Polyester or ceramic capacitor EMC Spectra red limit line is EN 55022 curve B Quasi-peak average limit. www.murata-ps.com/support KDC_NPH10SC.J05 Page 5 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters EMC FILTERING AND SPECTRA (continued) NPH10S2405     $ POEVDUFE
& NJT T JPOT
E# V7 $ POEVDUFE
& NJT T JPOT
E# V7 NPH10S2403     ' SFRVFODZ
)[     NPH10S2412                   ' SFRVFODZ
)[   NPH10S4803    ' SFRVFODZ
)[ NPH10S4805    $ POEVDUFE
& NJT T JPOT
E# V7              ' SFRVFODZ
)[      NPH10S2415  $ POEVDUFE
& NJT T JPOT
E# V7 $ POEVDUFE
& NJT T JPOT
E# V7    $ POEVDUFE
& NJT T JPOT
E# V7        ' SFRVFODZ
)[      ' SFRVFODZ
)[ www.murata-ps.com/support KDC_NPH10SC.J05 Page 6 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters EMC FILTERING AND SPECTRA (continued) NPH10S4815     $ POEVDUFE
& NJT T JPOT
E# V7 $ POEVDUFE
& NJT T JPOT
E# V7 NPH10S4812              ' SFRVFODZ
)[      ' SFRVFODZ
)[   RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination finish on this product series is a Gold flash (0.05-0.10 micron) over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com/support KDC_NPH10SC.J05 Page 7 of 8 NPH10S Series Isolated 10W Single Output DC-DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 1.26 (32.00) Pin 0.98 (25.00) NPH10SXXXXEiC XYYWW 0.394 (10.00) Function 1 -VIN 2 +VIN 3* SS 4 +VOUT 5* TRIM 6 -VOUT 0.177 (4.50) 0.146 (3.70) * Optional pins RECOMMENDED FOOTPRINT DETAILS Ø 0.041 (1.04) 0.035 (0.90) 
)0-&4 2 0.80 (20.32) 1 5 0.392 (9.96) 0.23 (5.84) 6 
 *  *  0.2 (5.08) 
  
 
 4 3 0.8 (20.32) 
 Weight: 22g All dimensions in inches ±0.01 (mm ±0.25mm) All pins on a 0.10 (2.54) pitch and within ±0.01 (0.254) of true position * Optional control pins The copper case is connected to the output (-VOUT) pin. Care is needed in the design of this circuit board on which the converter is mounted. Top side tracks must not contact the edge of the case on the underside of the unit. Please note that from 2010 onwards you may receive either a blue or a black case finish. All dimensions in inches ±0.01 (mm ±0.25mm) * Optional control pins TUBE OUTLINE DIMENSIONS œ
œ 
 
 
 œ
œ All dimensions in inches ±0.01 (mm ±0.25mm) Tube length: 20.866 (530) ±2 (0.079) Tube material: Antistatic coated clear PVC Tube Quantity: 15 This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. ©2018 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NPH10SC.J05 Page 8 of 8