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NM485D6S5MC-R13

NM485D6S5MC-R13

  • 厂商:

    MURATA-PS(村田)

  • 封装:

    -

  • 描述:

    DIGITALISOLATOR3KVRS485

  • 数据手册
  • 价格&库存
NM485D6S5MC-R13 数据手册
NM485D6S5MC www.murata.com Isolated RS485 Driver DC-DC 6V 5V Regulator 6V Isolated DC-DC Power Supply 0V 5V regulated 0V 0V -6V -6V Isolation Vcc 0V FEATURES „ Patent pending 3.3V Regulator Isolated 485 Transceiver input lines output lines input lines output lines „ ANSI/AAMI ES60601-1, 2 MOOP/1 MOPP recognised SELECTION GUIDE „ UL60950 recognised for 250Vrms reinforced insulation Order Code1 „ SMD compatible MODULE CHARACTERISTICS „ +6V, -6V unregulated and +5V regulated isolated outputs DRIVER Parameter Test conditions Min. „ Differential driver and receiver Differential Output Voltages Short Circuit Output Current Complementary Output States Common-mode Output Voltages Complementary Output States Loaded RL = 100Ω (RS-422), See Figure 1 Loaded RL = 54Ω (RS-485) 2.0 1.5 „ 500kbps data rate „ Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E) „ Industrial temperature range -40°C to +85°C „ Tested at 3000Vac rms ‘Hi Pot Test’ NM485D6S5MC Max. Units Symbol 3.6 3.6 V VOD 250 mA IOS RL = 54Ω or 100Ω, see figure 1 0.2 V Δ |VOD| RL = 54Ω or 100Ω, see figure 1 3.0 V VOC PRODUCT OVERVIEW Input Threshold High The NM485D6S5MC is a low power electrically isolated differential driver and receiver designed for bi-directional data communication or multipoint bus transmission. The device combines a tri-state differential line driver and a differential input line receiver. The driver and receiver have active high and active low enables, respectively, which can be connected together to function as direction control. No external components are needed as a single 5V supply powers all functions either side of the isolation boundary. NM485D655MC also provides a regulated 5V, unregulated 6V and -6V isolated supply’s for system use. Input Current Typ. 0.2 V Δ |VOC| V VIL 0.7 x VCC V VIH +0.01 +10 μA II RL = 54Ω or 100Ω, see figure 1 0.25 x Vcc Input Threshold Low -10 2 RECEIVER Parameter Differential Input Threshold Voltages Input Voltages Hysteresis Input Current (A, B) Line Input Resistance Tristate Leakage Current Output Voltage Low Test conditions Min. Typ. Max. Units Symbol -7V < VCM < +12V -200 -125 -30 mV VTH VOC = 0V -7V < VCM < +12V 15 -100 96 Vcc 0.3 Output Voltage High Short-Circuit Current Common-Mode Transient Immunity For full details go to https://www.murata.com/englobal/products/power/rohs 5V VCM = 1 kV, transient magnitude = 800V 0.2 Vcc 0.2 mV VHYS +125 μA kΩ II RIN ±1 μA IOZR 0.4 V VOLRxD V VOHRxD 100 mA 25 KV/μS 1. Components are supplied in tape and reel packaging, please refer to tape and reel specification section. Orderable part numbers are NM485D6S5MC-R7 (80 pieces per reel), or NM485D6S5MC-R13 (350 pieces per reel). 2. VCM is the common-mode potential difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. www.murata.com KDC_NM485D6S5MC.D01 Page 1 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC TIMING SPECIFICATIONS Parameter Driver Test conditions Min. Propagation Delay Differential Driver Output Skew Rise Time/Fall Time Enable Time Disable Time RL = 54Ω, CL1 = CL2 = 100 pF see figure 2 & 6 RL = 54Ω, CL1 = CL2 = 100 pF see figure 2 & 6 RL = 54Ω, CL1 = CL2 = 100 pF see figure 2 & 6 RL = 110Ω, CL1 = 50 pF see figure 4 & 7 RL = 110Ω, CL1 = 50 pF see figure 4 & 7 250 200 Typ. Max. Units Symbol 450 700 100 1100 1.5 200 ns ns ns μs ns tDPLH, tDPHL TDSKEW TDR, TDF TZL, TZH TLZ, THZ 200 30 13 13 ns ns ns ns TPLH, TTPHL TPWD TZL, TZH TLZ, THZ Receiver Propagation Delay Pulse Width Distortion Enable Time Disable Time CL1 = 15 pF see figure 3 & 8 CL1 = 15 pF see figure 3 & 8 RL = 1kΩ, CL1 = 15 pF see figure 5 & 9 RL = 1kΩ, CL1 = 15 pF see figure 5 & 9 ABSOLUTE MAXIMUM RATINGS Supply voltage VCC with respect to pin 11 Bus Terminal Voltages Logic Terminal Voltage Data transmission rate 6V -9V to +14V -0.5V to Vcc +0.5V 500Kbps www.murata.com KDC_NM485D6S5MC.D01 Page 2 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC FIGURE 1 FIGURE 2 FIGURE 3 DRIVER TEST CIRCUIT DRIVER TEST CIRCUIT RECEIVER TEST CIRCUIT (For output voltage levels) (For timing characteristics) (For timing characteristics) A RL 2 CL1 Y VOD vout RL CL B Z RL CL2 2 FIGURE 4 FIGURE 5 FIGURE 6 DATA ENABLE TEST CIRCUIT READ ENABLE TEST CIRCUIT DRIVER TIMING (For signal propagation) VDD1 VDD1/2 VDD1/2 +1.5v VOUT VCC VCC 0V S1 Y RL 0V or 3V S1 Z tDPLH tDPLH -1.5v RL S2 RE S2 Z CL vout CL 1/2VO VO DE Y RE IN +VO 90% POINT VDIFF=V(Y)-V(Z) 90% POINT VDIFF 10% POINT -VO 10% POINT tDR FIGURE 7 DATA ENABLE TIMING SPECIFICATION tDF FIGURE 8 FIGURE 9 RECEIVER TIMING READ ENABLE TIMING SPECIFICATION vDD1 vDD1 RE DE 0.5VDD1 0V tZL Y, Z 0.5VDD1 0.5VDD1 0.5VDD1 A, B 0V 0V 0V tPLH tPHL tZL tLZ tLZ RxD 1.5V VOH 2.3V VOL +0.5V RXD VOL 1.5V VOL +0.5V tZH tZH VOH -0.5V Y, Z tHZ VOL tHZ VOH VOL 1.5V VOH -0.5V RxD VOH 1.5V 2.3V 0V 0V 0V www.murata.com KDC_NM485D6S5MC.D01 Page 3 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC DC-DC CHARACTERISTICS INPUT CHARACTERISTICS Parameter Test conditions Min. Typ. Max. Units Voltage range Input reflected ripple current Continuous operation 5V Input 4.5 5 6 5.5 V mA pk-pk Test conditions Min. Typ. Max. Units 5V Output regulated (0mA to 80mA) +6V Unregulated (16mA to 160mA) -6V Unregulated (16mA to 160mA) 4.92 5.4 -6.6 5 6 -6 1.1 5 25 5.08 6.6 -5.4 1.2 8 50 0.4 0.8 OUTPUT CHARACTERISTICS Parameter Output voltage spec (The maximum current share across all outputs is 160mA.) Line regulation Load regulation Ripple and noise Power 5V Regulated Total available power across all outputs V %% % mV W TEMPERATURE CHARACTERISTICS Parameter Test conditions Min. Operation Storage Product temperature rise above ambient See derating graph -40 -50 Measured in the isolation barrier Typ. Max. 20 85 125 30 Typ. Max. Units o C ISOLATION CHARACTERISTICS Parameter Test conditions Min. Isolation test voltage Production tested for 1 Second Qualification tested for 1 minute 3000 3000 Isolation capacitance Resistance 5 Viso = 1kVDC Units VACrms VACrms pF GΩ 10 GENERAL CHARACTERISTICS Parameter Test conditions MTTF - nominal input voltage at full load MIL-HDBK-217 FN2 Telcordia SR-332 Switching frequency Min. Typ. 800 10000 95 Max. Units kHrs kHrs kHz www.murata.com KDC_NM485D6S5MC.D01 Page 4 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC 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 NM485D6S5MC is 100% production tested at 3kVAC rms for 1 second and have been qualification tested at 3kVAC rms for 1 minute. The NM485D6S5MC has been recognised by Underwriters Laboratory to 250Vrms reinforced insulation. 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 NM485D6S5MC 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 recognised 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 ANSI/AAMI ES60601-1 The NM485D6S5MC has been recognised to ANSI/AAMI ES60601-1 and provides 1 MOPP (Means Of Patient Protection) and 2 MOOP (Means Of Operator Protection) based upon a working voltage of 250Vrms max, between Primary and Secondary. UL 60950 The NM485D6S5MC has been recognised by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 250Vrms. Creepage is 5mm and clearance is 4mm. FUSING The NM485D6S5MC is not internally fused so to meet the requirements of UL an anti-surge input line fuse should always be used with ratings as defined below. NM485D6S5MC - 1A All fuses should be UL recognised and rated to at least the maximum allowable DC input voltage. RoHS COMPLIANCE, MSL AND PSL INFORMATION The NM485D6S5MC is compatible with Pb-Free soldering systems and is also backward compatible with Sn/Pb soldering systems. The NM485D6S5MC has a process, moisture, and reflow sensitivity classification of MSL2 PSL R7F as defined in J-STD-020 and J-STD-075. This translates to: MSL2 = 1 year floor life, PSL R7F = Peak reflow temperature 245°C with a limitation on the time above liquidus (217°C) which for this series is 90sec max. Please refer to application notes for further information. The pin termination finish on this product series is Gold with Nickel Pre-plate. www.murata.com KDC_NM485D6S5MC.D01 Page 5 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC APPLICATION NOTES The increased use of balanced data transmission lines, (distributing data to several system components and peripherals over relatively long lines) has brought about the need for multiple driver/receiver combinations on a single twisted pair line. This resulted in an upgraded version of EIA RS-422, named EIA-485. EIA-485 takes into account EIA RS-422 requirements for balanced line data transmission, and allows for multiple drivers and receivers. The NM485D6S5MC is a low power isolated differential interface providing EIA-485 compatibility. The use of a differential communications interface such as the NM485D6S5MC allows data transmission at high rates and over long distances to be accomplished. This is because effects of external noise sources and cross talk are much less pronounced on the data signal. Any external noise source coupling onto the differential lines will appear as an extra common mode voltage which the receiver is insensitive to. The difference between the signal levels on the two lines will therefore remain the same. Similarly a change in the local ground potential at one end of the line will appear as just another change in the common mode voltage level of the signals. Twisted pair cable is commonly used for differential communications since its twisted nature tends to cause cancellation of the magnetic fields generated by the current flowing through each wire, thus reducing the effective inductance of the pair. Computer and industrial serial interfacing are areas where noise can seriously affect the integrity of data transfer, and a proven route to improve noise performance for any interface system is galvanic isolation. Galvanic isolation removes the ground loop currents from data lines and hence the impressed noise voltage which affects the signal is also eliminated. The isolation feature of the NM485D6S5MC also means that common mode noise effects are removed and many forms of radiated noise are reduced to negligible limits. NM485 Truth table for NM485 functionality DE RE RXD Y Z 5Vin 0V O O ≈A Hi Z Hi Z O I Hi Z Hi Z Hi Z I O ≈A ≈Txd ≈Txd I I Hi Z ≈Txd ≈Txd +5V Isolated Power supply +6V -6V 0V A RxD R B RE DE Z TxD D Y Hi Z = High impedance tri state Figure 10 demonstrates how the differential lines of the NM485D6S5MC can be connected to form a transceiver. Data direction is controlled by the driver enable and receiver enable pins. This means the device can receive when the receiver enable is low and transmit when the driver enable is high. As the driver is active high, to reduce the power dissipation even further, it is advisable to disable the driver when not transmitting data. Configuring the NM485D6S5MC as a transceiver The NM485D6S5MC is configured as a transceiver simply by connecting B to Z, A to Y and D ENABLE to R ENABLE. The system then writes data to the bus when XEN1 is high ( with read disabled) and reads data from bus when XEN1 is low ( with write disabled). FIGURE 10 MC68195 NM485D6S5MC +5Vin 1 VCC RDATA1 28 A 11 B 10 3 RxD XEN1 27 5 D ENABLE XDATA1 25 6 TxD 4 R ENABLE 2 GND OV Z 8 7 Y ISO GND 12 Isolation Barrier 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%. www.murata.com KDC_NM485D6S5MC.D01 Page 6 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC APPLICATION NOTES (Continued) Short Circuit Performance The NM485D6S5MC offers short circuit protection at low ambient temperatures from -40°C to the temperatures shown in the below graph, when the output power lines are shorted together or to GND. For datalines the device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention causes excessive power dissipation. 1000 Time (seconds) 100 Nominal Vin High Vin 10 1 25 35 45 55 65 75 85 dĞŵƉĞƌĂƚƵƌĞ;ȗͿ Capacitive Loading & 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 of 4.6ms Typical Start-Up Wave Form NM485D6S5MC Start-up time ms 1.6 www.murata.com KDC_NM485D6S5MC.D01 Page 7 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC APPLICATION NOTES (Continued) Typical applications Figure 11 and Figure 12 show typical applications of half-duplex and full-duplex RS-485 network configurations. Up to 256 transceivers can be connected to the RS-485 bus. To minimize reflections, the line must be terminated at the receiving end in its characteristic impedance and stub lengths off the main line must be kept as short as possible. For half-duplex operation, this means that both ends of the line must be terminated as either end can be the receiving end. The NM485D6S5MC series offers a triple supply (+5V, +6V, -6V) which can be used to power system circuitry. NM485 NM485 5Vin Isolated Power supply 0V +5V +5V +6V +6V -6V -6V 0V 0V 0V A A R RxD 5Vin Isolated Power supply R B B RxD RE RE RT RT DE DE RxD RE DE 5Vin D R 0V 5Vin NM485 0V -6V Y Z A B Isolated Power supply B TxD TxD D Y Z D R RxD 0V A +6V Y +5V Z Y 0V -6V +6V Z Isolated Power supply +5V D NM485 TxD RE DE TxD Figure 11. Typical Half-Duplex RS-485 Network NM485 5Vin 0V NM485 Isolated Power supply +5V +5V +6V +6V -6V -6V 0V 0V R B RT Z D 0V TxD DE RE DE RE Z D B RT RE DE TxD -6V 0V +6V Isolated Power supply D 0V RxD Y Z R +5V B 5Vin A NM485 -6V 0V Isolated Power supply 0V 5Vin NM485 +6V Y +5V TxD 5Vin Y A RxD Isolated Power supply A B A Z R RxD R RxD Y D RE DE TxD Figure 12. Typical Full-Duplex RS-485 Network www.murata.com KDC_NM485D6S5MC.D01 Page 8 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC Load (%) DERATING GRAPHS NM485D6S5MC 100 90 80 70 60 50 40 Figure 11. Typical Full-Duplex RS-485 Network 30 20 10 0 25 35 45 55 65 75 Temperature (°C) Still Air 85 EFFICIENCY VS LOAD GRAPH NM485D6S5MC 70 60 Efficiency (%) 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) TOLERANCE ENVELOPE The voltage tolerance envelope show typical load regulation characteristics for the NM485D6S5MC. The tolerance envelope is the maximum output voltage variation due to changes in output loading and set point accuracy. NM485D6S5MC 9% Output Voltage 6% 2% -3% 10 25 50 75 100 Output Load Current (%) www.murata.com KDC_NM485D6S5MC.D01 Page 9 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC EMC FILTERING AND SPECTRA FILTERING The following filter circuit and table shows the input capacitor and input inductor typically required to meet EN55022 Curve A and B, Quasi-Peak EMC limit, as shown in the following plot. The following plot shows positive and negative quasi peak and CISPR22 Average Limit A (pink line) and CISPR22 Average Limit B (blue line) adherence limits. L1 ISOLATOR C2 C1 63V Polycarbonate capacitor C1 R1 485 Part Number NM485D6S5MC L1 22μH Inductor Murata Part Number 23220C Capacitor C1 2.2μF NM485D6S5MC 80 70 60 dBuV 50 40 30 20 10 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) www.murata.com KDC_NM485D6S5MC.D01 Page 10 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS Pin Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 5VIN GND RXD RE DE TXD Y Z -6V B A GND +6V 5V REG RECOMMENDED FOOTPRINT DETAILS 9.27 [0.365] 10.92 [0.430] 7.62 [0.300] 1.65 [0.065] x14 PLACES 1.91 [0.075] 4.95 [0.195] 6.60 [0.260] 12.57 [0.495] 3.30 [0.130] RECOMMENDED ISOLATION BARRIER 0.89 [0.035] x14 PLACES 1.37 [0.054] 4.00 [0.157] 4.00 [0.157] 15.87 [0.625] All dimensions in mm (inches), Controlling dimensions is mm. All dimensions in mm (inches), Controlling dimensions is mm. Component layout is shown for reference only. Weight: 2.88g www.murata.com KDC_NM485D6S5MC.D01 Page 11 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC TAPE & REEL SPECIFICATIONS REEL OUTLINE DIMENSIONS REEL PACKAGING DETAILS Ø330 [13.000] OR Ø178 [7.000] Ø 13.5 12.5 0.531 [Ø 0.492 ] LEADER SECTION 400 [15.748] MIN 38.4 [1.512] MAX # 100 [3.937] MIN 1.5 [0.059] MIN ## GOODS ENCLOSURE SECTION TRAILER SECTION 160 [6.299] MIN Ø20.2 [Ø0.795] MIN Carrier tape pockets shown are illustrative only - Refer to carrier tape diagram for actual pocket details. Tape & Reel specifications shall conform with current EIA-481 standard Unless otherwise stated all dimensions in mm(inches) Controlling dimension is mm # Measured at hub ## Six equi-spaced slots on 180mm/7” reel Reel Quantity: 7” - 80 or 13” - 350 TAPE OUTLINE DIMENSIONS Ø2.0 [Ø0.079] MIN 2.0 [0.079] 4.0 [0.157] Ø1.5 +0.1 -0.0 -0.000 ] [Ø0.059 +0.004 19.5 [0.769]# 14.2 [0.56] 28.4 [1.118] 32.0±0.3 [1 .260±0.012] 3° MAX 1.75 [0.069] COVER TAPE 15.0 [0.592]# 0.5 [0.020] Tape & Reel specifications shall conform with current EIA-481 standard Unless otherwise stated all dimensions in mm(inches) ±0.1mm (±0.004 Inches) Controlling dimension is mm Components shall be orientated within the carrier tape as indicated # Measured on a plane 0.3mm above the bottom pocket 24.0 [0.945] 0.2±0.05 [0 .008±0.002] 8.2 [0.323] 3° MAX DIRECTION OF UNREELING www.murata.com KDC_NM485D6S5MC.D01 Page 12 of 13 NM485D6S5MC Isolated RS485 Driver DC-DC 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 products 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 • Aerospace equipment • Undersea equipment • Power plant control equipment • Medical equipment • Transportation equipment ( automobiles, trains, ships, etc.) • Traffic signal equipment • Disaster prevention / crime prevention equipment • 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 application 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, monitor 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. 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 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. © 2022 Murata Power Solutions (Milton Keynes) Ltd. www.murata.com KDC_NM485D6S5MC.D01 Page 13 of 13
NM485D6S5MC-R13 价格&库存

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