GO 20-SMS current transducer
GO 20-SMS current transducer

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Manufacturer: LEM

GO 20-SMS current transducer

  • GO 20-SMS
  • Accuracy 1.3
  • Rated Current [A] 20
  • Primary signal [AC / AC+DC / DC] AC+DC
  • Supply voltage [V] 5
  • Mounting [THT / SMD / DIN / Panel / On primary rail] SMD
  • App Renewable energy/Drives/Automotive batteries/Automotive drive
  • Output signal type [current/voltage] voltage
  • Minimum operating temperature [°C] -40
  • Maximum operating temperature [°C] 125
  • Frequency response (-3dB) [kHz] 300
  • Feedback loop [open / closed] // Eta technology open

Technical Specifications

Description

The GO-SMS series is an integrated current transducer from LEM designed for measuring AC and DC current in industrial and automotive applications. Differential sensing technology allows the transducer to reject external fields from disturbing environments. Patented strain and temperature compensation algorithms are used to achieve excellent accuracy over a wide temperature range. The primary conductor (pins 1 to 8) has a very low electrical resistance of 0.75 mΩ (typical), ensuring excellent performance with low power dissipation. The GO-SMS can measure continuous currents from 30 to 75 A over a wide temperature range. Internal and external overcurrent detection circuits provide fast, reliable, and flexible protection solutions. Galvanic isolation between primary and secondary eliminates the need for any additional isolation, reducing overall system footprint and cost.

Key Features
  • Multi-range open-loop current transducer: 75 A
  • Low electrical resistance of 0.75 mΩ
  • Dual supply voltage: 5 V or 3.3 V
  • Dual overcurrent detection
  • Wide bandwidth: 300 kHz
  • No magnetic hysteresis
  • 1% total error with temperature
  • Galvanic isolation between primary and secondary with 7.4 mm dCl and 7.4 mm dCp
  • Isolated test voltage of 4800 V RMS (UL) 62368)
  • AEC-Q-100 Grade 1
Applications
  • Small Drives
  • HVAC Inverters
  • Appliances
  • Solar Inverters
  • Automotive and Industrial
Technical Data
Parameter Value
Maximum Current Measurement Range (RMS) ±50A
Rated Current (RMS) ±20A
Supply Voltage 5V
Operating Temperature -40÷125°C
Storage Temperature -40÷150°C
Maximum Junction Temperature 165°C
Maximum Output Sinking Current 50mA
Maximum Output Current Source 25mA
Maximum Supply Voltage 8V
Maximum Supply Voltage on Other Pins 6.5V
Electrostatic Discharge Voltage (HBM) 2kV
Electrostatic Discharge Voltage (CDM) 500V
Thermal Resistance Between Junction and Board 9 K/W
Constant Time 1s
Weight 0.4g
Rated Primary Current RMS 20A
Primary Current Measuring Range -50÷50A
Internal Reference Voltage (at primary current Ip=0) 2.5V
Rated Sensitivity 40 mV/A
Error sensitivity -1÷1%
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  • Accuracy 1.3
  • Rated Current [A] 20
  • Primary signal [AC / AC+DC / DC] AC+DC
  • Supply voltage [V] 5
  • Mounting [THT / SMD / DIN / Panel / On primary rail] SMD
  • App Renewable energy/Drives/Automotive batteries/Automotive drive
  • Output signal type [current/voltage] voltage
  • Minimum operating temperature [°C] -40
  • Maximum operating temperature [°C] 125
  • Frequency response (-3dB) [kHz] 300
  • Feedback loop [open / closed] // Eta technology open

Technical Specifications

Description

The GO-SMS series is an integrated current transducer from LEM designed for measuring AC and DC current in industrial and automotive applications. Differential sensing technology allows the transducer to reject external fields from disturbing environments. Patented strain and temperature compensation algorithms are used to achieve excellent accuracy over a wide temperature range. The primary conductor (pins 1 to 8) has a very low electrical resistance of 0.75 mΩ (typical), ensuring excellent performance with low power dissipation. The GO-SMS can measure continuous currents from 30 to 75 A over a wide temperature range. Internal and external overcurrent detection circuits provide fast, reliable, and flexible protection solutions. Galvanic isolation between primary and secondary eliminates the need for any additional isolation, reducing overall system footprint and cost.

Key Features
  • Multi-range open-loop current transducer: 75 A
  • Low electrical resistance of 0.75 mΩ
  • Dual supply voltage: 5 V or 3.3 V
  • Dual overcurrent detection
  • Wide bandwidth: 300 kHz
  • No magnetic hysteresis
  • 1% total error with temperature
  • Galvanic isolation between primary and secondary with 7.4 mm dCl and 7.4 mm dCp
  • Isolated test voltage of 4800 V RMS (UL) 62368)
  • AEC-Q-100 Grade 1
Applications
  • Small Drives
  • HVAC Inverters
  • Appliances
  • Solar Inverters
  • Automotive and Industrial
Technical Data
Parameter Value
Maximum Current Measurement Range (RMS) ±50A
Rated Current (RMS) ±20A
Supply Voltage 5V
Operating Temperature -40÷125°C
Storage Temperature -40÷150°C
Maximum Junction Temperature 165°C
Maximum Output Sinking Current 50mA
Maximum Output Current Source 25mA
Maximum Supply Voltage 8V
Maximum Supply Voltage on Other Pins 6.5V
Electrostatic Discharge Voltage (HBM) 2kV
Electrostatic Discharge Voltage (CDM) 500V
Thermal Resistance Between Junction and Board 9 K/W
Constant Time 1s
Weight 0.4g
Rated Primary Current RMS 20A
Primary Current Measuring Range -50÷50A
Internal Reference Voltage (at primary current Ip=0) 2.5V
Rated Sensitivity 40 mV/A
Error sensitivity -1÷1%
Less
Read more
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