CRV1 Series www.murata-ps.com 3kVDC Isolated 1W Single & Dual Output DC/DC Converters Wide temperature performance at full 1 Watt load, –40°C to 85°C Parameter Industry standard pinout Reflected ripple current Fully encapsulated with toroidal magnetics No external components required No electrolytic or tantalum capacitors 23 8 10 17 Efficiency (Typ) Efficiency (Min) Ripple & Noise (Max)1 Load Regulation (Max) Ripple & Noise (Typ)1 16 6.7 6 8.5 67 76 77 79 70 79 81 83 MIL. Tel. kHrs 23 26 42 42 4241 1579 1287 1462 Min. Typ. Max. 4.5 10.8 5 12 20 5.5 13.2 40 mA p-p Rated Power Voltage Set Point Accuracy Line regulation Typ. Max. Units 1 W 1.1 1.2 %/% Typ. Max. Units Conditions TA=-40°C to 120°C Min. See tolerance envelope High VIN to low VIN Units V ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 minute Viso= 1000VDC 3000 10 GENERAL CHARACTERISTICS Parameter Conditions Switching frequency 5V input types 12V input types For full details go to www.murata-ps.com/rohs 14 7 5 5 pF Continuous operation, 5V input types Continuous operation, 12V input types All input types The CRV1 series of industrial temperature range DC/DC converters are the standard buliding blocks for on-board distributed power systems. They are ideally suited for providing local supplies on control system boards with the added benefit of 3kVDC galvanic isolation to reduce switching noise. Available in SIP package with dual and single output pinout. All of the rated power may be drawn from a single output rail provided the total loaddoes not exceed 1 watt.tjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj- 11 5 4 4 % Conditions PRODUCT OVERVIEW jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj Load Regulation (Typ) Input Current at Rated Load 294 256 111 108 mVp-p OUTPUT CHARACTERISTICS Parameter 5V, 12V & 15V output % INPUT CHARACTERISTICS Voltage range 5V & 12V inputs mA 5 5 200 5 ±12 ±42 12 ±12 ±42 12 15 67 UL 94V-0 package material 3kVDC isolation (1 minute) ‘Hi Pot Test’ Output Current V MTTF2 UL 60950 Recognition pending V Isolation Capacitance FEATURES CRV1S0505SC CRV1D0512SC CRV1D1212SC CRV1S1215SC Output Voltage Order Code Nominal Input Voltage SELECTION GUIDE Min. VDC GΩ Typ. Max. 120 150 Units kHz ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds Input voltage VIN, 5V input Input voltage VIN, 12V input 300°C 7V 15V TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -50 Case Temperature above ambient Cooling 5V output types All other output types Free air convection Typ. Max. Units 85 125 28 25 °C 1. See Ripple & Noise characterisation method. 2. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com/support KDC_CRV1.A01 Page 1 of 7 CRV1 Series 3kVDC Isolated 1W Single & Dual Output DC/DC Converters 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 CRV1 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The CRV1 is pending recognition by Underwriters Laboratory for functional insulation, 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. The CRV1 series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to 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. This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. SAFETY APPROVAL The CRV1 series is pending recognition by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum still air ambient temperature of 85°C and/or case temperature limit (case temperature measured on the face opposite the pins). RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. Both types in this series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs TEMPERATURE DERATING GRAPH Output Power (W) 1.5 1.0 0.5 85°C Safe Operating Area 120°C 0 -40 100 50 0 Ambient Temperature (°C) 150 www.murata-ps.com/support KDC_CRV1.A01 Page 2 of 7 CRV1 Series 3kVDC Isolated 1W Single & Dual Output DC/DC Converters EFFICIENCY VS LOAD 5V Inputs 12V Inputs 90 90 80 80 70 70 60 CRV1D0512SC 50 40 CRV1S0505SC Efficiency (%) Efficiency (%) 60 40 30 30 20 20 10 10 0 CRV1D1212SC 50 CRV1S1215SC 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 Load (%) 40 50 60 70 80 90 100 Load (%) TOLERANCE ENVELOPES The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to changes in output loading. CRV1S0505SC CRV1S1215SC +10% +7% -1% Output Voltage Output Voltage +3% +1% 0% -3% -5% 10 25 50 75 100 75 50 25 10 100 Output Load Current (%) Output Load Current (%) CRV1D0512SC CRV1D1212SC +6% +4% +1% -2% Output Voltage Output Voltage +3% +1% -1% -3% 10 25 50 Output Load Current (%) 75 100 10 25 50 75 100 Output Load Current (%) www.murata-ps.com/support KDC_CRV1.A01 Page 3 of 7 CRV1 Series 3kVDC Isolated 1W Single & Dual Output DC/DC Converters APPLICATION NOTES Minimum load The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%. Capacitive loading and start up Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product series will start into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF. Typical Start-Up Wave Form CRV1S0505SC CRV1D0512SC CRV1D1212SC CRV1S1215SC Start-up time μs 1966 11180 8650 11171 Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter 10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less than 100mΩ at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450Ω resistor, carbon film, ±1% tolerance R2 50Ω BNC termination T1 3T of the coax cable through a ferrite toroid RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires Measured values are multiplied by 10 to obtain the specified values. C2 Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD www.murata-ps.com/support KDC_CRV1.A01 Page 4 of 7 CRV1 Series 3kVDC Isolated 1W Single & Dual Output DC/DC Converters APPLICATION NOTES (continued) Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter. Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz. L DC Power Source CRV1S0505SC CRV1D0512SC CRV1D1212SC CRV1S1215SC L, μH 22 150 150 220 Inductor SMD 82223C 82154C 82154C 82224C C Load DC Through Hole 11R223C 11R154C 11R154C 11R224C Capacitor C, μF 1 0.33 0.33 0.22 www.murata-ps.com/support KDC_CRV1.A01 Page 5 of 7 CRV1 Series 3kVDC Isolated 1W Single & Dual Output DC/DC Converters EMC FILTERING AND SPECTRA FILTERING The following table shows the additional input capacitor and input inductor typically required to meet EN 55022 Curve B Quasi-Peak EMC limit, as shown in the following plots. The following plots show positive and negative quasi peak and CISPR22 Average Limit B (pink line) and Quasi Peak Limit B (green line) adherence limits. The recommended input capacitor to use for this circuit is 50V 16V X7R ceramic capacitor. L DC C DC Inductor Part Number L, μH CRV1D0512SC CRV1S0505SC CRV1D1212SC CRV1S1215SC 10uH 10uH 10uH 4.7uH SMD Capacitor Through Hole C, μF 13R103C 13R103C 13R103C 13R472C 1uF 1uF 1uF 1uF CRV1D1212SC 80 80 70 70 60 60 50 50 dBuV dBuV CRV1D0512SC 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 Frequency (Hz) 70 60 60 50 50 dBuV dBuV 80 70 40 40 30 30 20 20 10 10 1.00E+07 Frequency (Hz) 1.00E+08 CRV1S1215SC 80 1.00E+06 1.00E+07 Frequency (Hz) CRV1S0505SC 0 1.00E+05 1.00E+06 1.00E+08 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) www.murata-ps.com/support KDC_CRV1.A01 Page 6 of 7 CRV1 Series 3kVDC Isolated 1W Single & Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS 19.50±0.25 [0.768±0.010] 6.00±0.25 [0.236±0.010] 2.54 [0.100] x5 HOLES Ø 0.045 0.039 Ø 1.15 1.00 [ ] 2.54 [0.100] * 0.4 [0.016] MIN 10.00±0.25 [0.394±0.010] S 4.10±0.5 [0.161±0.020] 0.50±0.05 [0.020±0.002] *Hole not required for single output variants. 2.54 [0.100] 5.08 [0.200] 0.25±0.05 [0.010±0.002] TUBE OUTLINE DIMENSIONS 1 1.25±0.3 [0.049±0.012] 2 5 6* 7 2.54 [0.100] S 2.10±1 [0.083±0.035] 9.3 [0.366] 15.24 [0.600] S * Pin not fitted on single output variants. All dimensions in mm (inches) Controlling dimension is mm.All pins on a 2.54 (0.100) pitch and within ±0.1 (0.004) of true position from pin 1 at seating plane ‘S’position. Weight: 2.1g 12.43 [0.489] PIN CONNECTIONS Single output variants 18.0 [0.709] Dual output variants Pin Function Pin Function 1 2 5 7 VIN GND -Vout +Vout 1 2 5 6 7 VIN GND -Vout OV +Vout 5.0 [0.197] Unless otherwise specified all dimensions in mm [inches] ±0.55mm. Tube length : 20.47 (520mm ±2mm). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Tube Quantity : 35 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. © 2016 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_CRV1.A01 Page 7 of 7