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Compact PCB mount current sensor LEM LPSR 15-NP with galvanic isolation and extended measuring range

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Compact PCB mount current sensor LEM LPSR 15-NP with galvanic isolation and extended measuring range

working temperature : -40℃~+105℃

Current Range : 15A

Voltage - Supply : 4.75V~5.25V

Sensitivity : 41.67mV/A

Description : 15A 41.67mV/A Current Sensors RoHS

Mfr. Part # : LPSR 15-NP

Model Number : LPSR 15-NP

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Product Overview

The LEM LPSR series are closed-loop, multi-range current transducers designed for the electronic measurement of DC, AC, and pulsed currents with galvanic separation between primary and secondary circuits. These transducers offer a voltage output, unipolar supply voltage, and a compact design for PCB mounting. They feature very low offset drift, excellent dv/dt immunity, and an extended measuring range for unipolar measurements, making them suitable for various industrial applications including motor drives, UPS, SMPS, and solar inverters.

Product Attributes

  • Brand: LEM
  • Origin: Not specified
  • Material: Not specified
  • Color: Not specified
  • Certifications: IEC 61800-1, IEC 61800-2, IEC 61800-3, IEC 61800-5-1, IEC 62109-1, IEC 62477-1, UL 508, CSA C22.2 NO. 14-10

Technical Specifications

ParameterSymbolUnitLPSR 6-NPLPSR 15-NPLPSR 25-NPComment
Primary nominal RMS currentIP NA61525Apply derating according to fig.
Primary current, measuring rangeIP MA-20 to 20-51 to 51-85 to 85
Number of primary turnsNP1, 2, 3, 41, 2, 3, 41, 2, 3, 4
Supply voltageUCV4.75 to 5.254.75 to 5.254.75 to 5.25
Current consumptionICmA17 + 20*NP17 + 20*NP17 + 20*NPNS = 2000 turns
Reference voltage @ IP = 0 A (Internal)VrefV2.485 to 2.5152.485 to 2.5152.485 to 2.515
Output voltage @ IP = 0 AVoutVVrefVrefVref
Electrical offset voltageVO EmV-5 to 100-1.75 to 1.75-1 to 1100 % tested
Temperature coefficient of VrefTCVrefppm/K707070Internal reference
Temperature coefficient of Vout @ IP = 0 ATCVoutppm/K14 ppm/K of 2.5 V6 ppm/K of 2.5 V-40 C 105 C
Theoretical sensitivityGthmV/A104.241.67625 mVIP N
Sensitivity errorG%-0.2 to 0.2-0.2 to 0.2100 % tested
Temperature coefficient of GTCGppm/K4040-40 C 105 C
Linearity errorL% of IP N-0.1 to 0.1-0.1 to 0.1
Magnetic offset current (10 IP N)IO MmA-25 to 25-45 to 45
Output RMS voltage noise spectral density (100 100 kHz)enoV/Hz73.5referred to primary
Primary current, detection thresholdIP ThA4.02 IP N to 4.17 IP N4.02 IP N to 4.17 IP N4.02 IP N to 4.17 IP N
Overcurrent detection response timetr Ths1.4 to 2.21.4 to 2.2
Overcurrent detection hold timethold Thms11
Reaction time @ 10 % of IP Ntras0.30.3RL = 1 k, di/dt = 50 A/s
Step response time to 90 % of IP Ntrs0.40.4RL = 1 k, di/dt = 50 A/s
Frequency bandwidth (1 dB)BWkHz300RL = 1 k
Frequency bandwidth (3 dB)BWkHz300RL = 1 k
Overall accuracyXG% of IP N1.250.75
AccuracyX% of IP N0.50.5
Absolute maximum ratings: Maximum supply voltageUC maxV777
Absolute maximum ratings: Maximum primary conductor temperatureTB maxC110110110
Absolute maximum ratings: Maximum primary currentIP maxA20 IP N20 IP N20 IP N
Insulation coordination: RMS voltage for AC insulation test, 50 Hz, 1 minUdkV4.34.34.3
Insulation coordination: Impulse withstand voltage 1.2/50 sWkV888
Insulation coordination: Insulation resistanceRINSG181818measured at 500 V DC
Insulation coordination: Clearance (pri. - sec.)dCImmSee dimensions drawing on page 19See dimensions drawing on page 19See dimensions drawing on page 19
Insulation coordination: Creepage distance (pri. - sec.)dCpmm
Insulation coordination: Comparative tracking indexCTI600600600
Environmental: Ambient operating temperatureTAC-40 to 105-40 to 105-40 to 105
Environmental: Ambient storage temperatureTSC-55 to 125-55 to 125-55 to 125
Environmental: Massmg101010

2411272245_LEM-LPSR-15-NP_C7295701.pdf


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