Traductor de curent HMSR 30-SMS
Traductor de curent HMSR 30-SMS

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Producător: LEM

Traductor de curent HMSR 30-SMS

  • HMSR 30-SMS
  • Precizie
  • Curent nominal (A)







  • Buclă de feedback [deschisă / închisă] // tehnologia Eta

HMSR is a next-generation, high-isolation integrated current sensor from LEM. This product family offers a robust, compact, and exceptionally precise solution for measuring both direct (DC) and alternating (AC) currents in demanding switched-mode power applications used in commercial and industrial sectors.

HMSR is an open-loop sensor based on a micro magnetic core, featuring reinforced insulation and an overcurrent detection function (configurable by the user or factory-set). These characteristics make it suitable for high-voltage applications requiring high precision and strong resistance to external interference fields. The primary conductor (pins 1 and 8) is designed with ultra-low electrical resistance and specially engineered pads that withstand high-amplitude current surges, such as lightning strikes.

HMSR measures the magnetic field generated by the current flowing through the copper track of the primary conductor. Thanks to the micro magnetic core, the sensor exhibits high immunity to external interference fields, making it ideal for power electronics applications exposed to strong electromagnetic disturbances. The reinforced insulation between the primary circuit (pins 1 and 8) and the secondary circuit (pins 9 to 15) makes HMSR a compact and cost-effective high-side current measurement solution compared to resistive solutions requiring galvanic isolation.

Main features

  • Multi-range open-loop current transducer
  • Voltage output
  • Dual overcurrent detection
  • Single +5V power supply
  • Galvanic isolation between primary and secondary circuits
  • Low power consumption
  • Compact design for SMT mounting
  • Factory-calibrated
  • Wide bandwidth, ultra-low-loss magnetic core
  • Low profile: h=6mm
  • Small footprint
  • Low electrical resistance 0.76mΩ
  • Reinforced insulation
  • High resolution
  • High resistance to external interference
  • Lightning surge current ≤ 20kA

Applications

  • Small drives
  • HVAC inverters
  • Appliances
  • Solar inverters

Technical data

Parameter Value
Maximum supply voltage 8V
Maximum supply voltage (operating; -40÷125°C) 6.5V
Electrostatic discharge voltage (HBM) 2kV
Electrostatic discharge voltage (CDM) 500V
Maximum output source current 25mA
Maximum input current consumption 50mA
Maximum junction temperature 150°C
Operating temperature -40÷125°C
Storage temperature -55÷165°C
Mass 1.4g
Rated primary current Ip 20A
Primary current measurement range ±50A
Internal reference voltage for Ip=0 2.5V
DC supply voltage 5V
DC current consumption 20mA
Nominal sensitivity 40 mV/A (for nominal current 800mV)
Sensitivity error ±0.75%
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  • Precizie
  • Curent nominal (A)







  • Buclă de feedback [deschisă / închisă] // tehnologia Eta

HMSR is a next-generation, high-isolation integrated current sensor from LEM. This product family offers a robust, compact, and exceptionally precise solution for measuring both direct (DC) and alternating (AC) currents in demanding switched-mode power applications used in commercial and industrial sectors.

HMSR is an open-loop sensor based on a micro magnetic core, featuring reinforced insulation and an overcurrent detection function (configurable by the user or factory-set). These characteristics make it suitable for high-voltage applications requiring high precision and strong resistance to external interference fields. The primary conductor (pins 1 and 8) is designed with ultra-low electrical resistance and specially engineered pads that withstand high-amplitude current surges, such as lightning strikes.

HMSR measures the magnetic field generated by the current flowing through the copper track of the primary conductor. Thanks to the micro magnetic core, the sensor exhibits high immunity to external interference fields, making it ideal for power electronics applications exposed to strong electromagnetic disturbances. The reinforced insulation between the primary circuit (pins 1 and 8) and the secondary circuit (pins 9 to 15) makes HMSR a compact and cost-effective high-side current measurement solution compared to resistive solutions requiring galvanic isolation.

Main features

  • Multi-range open-loop current transducer
  • Voltage output
  • Dual overcurrent detection
  • Single +5V power supply
  • Galvanic isolation between primary and secondary circuits
  • Low power consumption
  • Compact design for SMT mounting
  • Factory-calibrated
  • Wide bandwidth, ultra-low-loss magnetic core
  • Low profile: h=6mm
  • Small footprint
  • Low electrical resistance 0.76mΩ
  • Reinforced insulation
  • High resolution
  • High resistance to external interference
  • Lightning surge current ≤ 20kA

Applications

  • Small drives
  • HVAC inverters
  • Appliances
  • Solar inverters

Technical data

Parameter Value
Maximum supply voltage 8V
Maximum supply voltage (operating; -40÷125°C) 6.5V
Electrostatic discharge voltage (HBM) 2kV
Electrostatic discharge voltage (CDM) 500V
Maximum output source current 25mA
Maximum input current consumption 50mA
Maximum junction temperature 150°C
Operating temperature -40÷125°C
Storage temperature -55÷165°C
Mass 1.4g
Rated primary current Ip 20A
Primary current measurement range ±50A
Internal reference voltage for Ip=0 2.5V
DC supply voltage 5V
DC current consumption 20mA
Nominal sensitivity 40 mV/A (for nominal current 800mV)
Sensitivity error ±0.75%
mai puțin
Citeste mai mult
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