CRL2 MURATA-PS | Alldatasheet

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Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 1 of 8 www.murata-ps.com www.murata.com For full details go to www.murata-ps.com/rohs SELECTION GUIDE Order Code Nominal Input Voltage Output Voltage Output Current Input Current at Rated Load Load Regulation (Typ) Load Regulation (Max) Ripple & Noise (Typ)1 Ripple & Noise (Max)1 Efficiency (Min) Efficiency (Typ) Isolation Capacitance MTTF2 V V mA % mVp-p % pF MIL. Tel. kHrs CRL2S0505SC 5 5 400 513 6 8 96 200 75 78 19 2327 CRL2S1205SC 12 5 400 207 4 5 76 200 77 81 28 716 INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range Continuous operation, 5V input types 4.5 5 5.5 VContinuous operation, 12V input types 10.8 12 13.2 Reflected ripple current 5V input types 33 mA p-p12V input types 38 OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated Power TA=-40°C to 85°C 2.0 W Voltage Set Point Accuracy See tolerance envelope Line regulation High V IN to low VIN 1.1 1.2 %/% ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 second 1000 VDC Resistance Viso= 1000VDC 10 GΩ GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency All input types 90 kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types, (see safety approval sec- tion for limitations) -40 85 °CStorage -50 130 Case Temperature above ambient 45 Cooling Free air convection ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds 260°C Wave Solder Wave Solder profile not to exceed the profile recom- mended in IEC 61760-1 Section 6.1.3. Please refer to application notes for further information. Input volta ge VIN, 5V input 7V Input voltage VIN, 12V input 15V 1. See Ripple & Noise characterisa tion 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. PRODUCT OVERVIEW The CRL2 series of DC-DC Converters is particular- ly suited to isolating and/or converting DC power rails. The galvanic isolation allows the device to be configured to provide an isolated negative rail in systems where only positive rails exist. The wide temperature range guarantees startup from –40°C and full 2 watt output at 85°C. Pin compatibility with the NME and LME ensures ease of upgrade- ability.jj

FEATURES

„UL 60950 recognised „Wide temperature performance at full

2 Watt load, –40°C to 85°C

„UL 94V-0 package material „Single isolated output „Industry standard pinout „1kVDC isolation ‘Hi Pot Test’ „5V & 12V inputs „5V output „Fully encapsulated with toroidal magnetics „No external components required „Pin compatible with CME, CRE1, LME, „MEE1, MEE3, NKE, NME & NML series „No electrolytic or tantalum capacitors

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 2 of 8 www.murata.com 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 CRL2 series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The CRL2 has been recognised 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 CRL2 series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled 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 CRL2 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum still air ambient temperature of 100°C as measured at any point on the case of the unit (hotspot). The CRL2 Series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used with ratings as defined below. CRL2x05xxxSC: 0.8A CRL2x12xxxSC: 0.315A All fuses should be UL recognised, 125V rated. File number E151252 applies. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. Please refer to application notes for further information. The pin termination finish on this product series is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 3 of 8 www.murata.com NXJ 2 S XX XX M C -RXX Series name Power rating Output type S - Single D - Dual RoHS compliant Package type S - SIP D - DIP M - Surface mount Z - ZIP Output voltage Input voltage Packaging code 7 - 7 inch reel 13 - 13 inch reel PART NUMBER STRUCTURE CRL 2 S XX XX S C Series name Power rating Output type S - Single D - Dual RoHS compliant Package type S - SIP D - DIP M - Surface mount Z - ZIP Output voltageInput voltage CHARACTERISATION TEST METHODS Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC-DC converter C2 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. Differential Mode Noise Test Schematic OSCILLOSCOPE Y INPUT SUPPLY C1 C2 C3 R1 T1 R2 Input Output DC/DC Converter R LOAD + + - -

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 4 of 8 www.murata.com 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. 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. Typical Start-Up Wave Form Start-up time μs CRL2S0505SC 790 CRL2S1205SC 396 DC DC L C LoadPower Source Inductor Capacitor L, μH SMD Through Hole C, μF CRL2S0505SC 22 82223C 11R223C 2.2 CRL2S1205SC 22 82223C 11R223C 2.2

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 5 of 8 www.murata.com EFFICIENCY VS LOAD CRL2S0505SC CRL2S1205SC 0 1 02 03 04 05 06 07 08 09 0 1 0 0 1 1 0 Efficiency (%) Load (%) 0 1 02 03 04 05 06 07 08 09 0 1 0 0 1 1 0 Efficiency (%) Load (%) TEMPERATURE DERATING GRAPH 150100500-40 Safe Operating Area 85°C Ambient Temperature (°C) Output Power (W) 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. CRL2S0505SC CRL2S1205SC Output Load Current (%) Output Load Current (%) Output Voltage Output Voltage -3% -2% 100 10075 7550 5025 2510 10

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 6 of 8 www.murata.com 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 recom- mended input capacitor to use for this circuit is 50V 16V X7R ceramic capacitor. Inductor Capacitor Part Number L, μH SMD Through Hole C, μF CRL2S0505SC 10 82223C 13R103C 2.2 CRL2S1205SC 10 82223C 13R103C 4.7 CRL2S0505SC CRL2S1205SC 1.00E+05 1.00E+06 1.00E+07 1.00E+08 dBuV Frequency (Hz) 1.00E+05 1.00E+06 1.00E+07 1.00E+08 dBuV Frequency (Hz) DC DC C L

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 7 of 8 www.murata.com PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS Pin Function 1 -Vin 2 +Vin 3 -Vout 4 +Vout TUBE OUTLINE DIMENSIONS RECOMMENDED FOOTRPINT DETAILS 0.40 [0.016] MIN (1.13 [0.044]) (3.44 [0.135]) 1234 S 5.0 [0.197] 12.43 [0.489] 18.0 [0.709] 9.3 [0.366] Tube quantity: 35 Unless otherwise specified all dimensions in mm [inches] ±0.55mm Tube Length : 520mm [20.472] ±2.0 [0.079]. All dimensions in mm (inches) controlling dimension is mm. 2.54 [0.100] 2.54 [0.100] x4 HOLES Ø1.15 1.00 [Ø 0.045 0.039 ]

Isolated 2W Single Output DC-DC Converters KDC_CRL2.C01 Page 8 of 8 www.murata.com Murata Power Solutions (Milton Keynes) Ltd. 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. © 2021 Murata Power Solutions (Milton Keynes) Ltd. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: https://www.murata.com/en-eu/products/power/requirements DISCLAIMER Unless otherwise stated in the datasheet, all products are designed for standard commercial and industrial applications and NOT for safety-critical and/or life-critical applications. Particularly for safety-critical and/or life-critical applications, i.e. applications that may directly endanger or cause the loss of life, inflict bodily harm and/or loss or severe damage to equipment/property, and severely harm the environment, a prior explicit written approval from Murata is strictly required. Any use of Murata standard prod- ucts for any safety-critical, life-critical or any related applications without any prior explicit written approval from Murata shall be deemed unauthorised use. These applications include but are not limited to:

  • Aircraft equipment
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  • Data Processing equipment Murata makes no express or implied warranty, representation, or guarantee of suitability, fitness for any particular use/purpose and/or compatibility with any applica- tion or device of the buyer, nor does Murata assume any liability whatsoever arising out of unauthorised use of any Murata product for the application of the buyer. The suitability, fitness for any particular use/purpose and/or compatibility of Murata product with any application or device of the buyer remain to be the responsibility and liability of the buyer. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards that anticipate dangerous consequences of failures, moni- tor failures and their consequences, lessen the likelihood of failures that might cause harm, and take appropriate remedial actions. Buyer will fully indemnify and hold Murata, its affiliated companies, and its representatives harmless against any damages arising out of unauthorised use of any Murata products in any safety-critical and/ or life-critical applications. Remark: Murata in this section refers to Murata Manufacturing Company and its affiliated companies worldwide including, but not limited to, Murata Power Solutions.