HAB, HABT

Cost efficient insulated current sensor for battery management system +/-400A

HAB, HABT - Automotive current sensors

The HAB, HABT Series is designed for DC, AC, or pulsed-current measurements in high-power, low-voltage automotive systems. 

Featuring galvanic isolation between primary (high-power) and secondary (electronic) circuits, these current transducers offer multiple measuring ranges in a single housing (up to ±400 A). 

Mounted on a vehicle's battery cable or busbar, they provide the ECU with current values via a voltage signal and ambient temperature via an NTC thermistor, using a waterproof connector. 

The output voltage is fully ratiometric with the supply voltage. 

Built on open loop Hall effect technology, the HAB, HABT current sensors are suited for diverse automotive applications.

HAB, HABT – Features and benefits

HAB HABT automotive current sensors

Features

  • Open Loop transducer using the Hall effect
  • Unipolar +5 V DC power supply
  • Primary current measuring range up to ±400 A
  • Maximum RMS primary admissible current: limited by the cable, the magnetic core or the ASIC temperature T < +150 °C
  • Operating temperature range: −30 °C < T < + 90 °C
  • Output voltage: fully ratio-metric (in sensitivity and offset)
  • Temperature measurement by embedded NTC.
  • Low voltage application

Main characteristics

  • Excellent accuracy for high and low current range
  • Very good linearity
  • Very low thermal offset drift
  • Very low thermal sensitivity drift
  • Current & Temperature measurement
  • No insertion losses

Typical applications

The HAB and HABT automotive sensors are designed for high-power, low-voltage automotive systems.

Applications include:

  • Battery Pack Monitoring
  • Hybrid Vehicles
  • EV and Utility Vehicles

LEM HAB, HABT – Download & Technical Characteristic

ProductDocumentPrimary nominal RMS voltageSupply Voltage rangeAccuracyBandwidthSensitivityOp. TemperatureMounting
HAB 60-S/SP5Datasheet
3D
60 A5 to 51%0 to 80 Hz--40 to 105 °COn primary fastening
HAB 80-SDatasheet
3D
80 A5 to 51%0 to 80 Hz--40 to 105 °COn primary fastening
HAB 100-S/SP1Datasheet
3D
100 A5 to 52.9%0 to 80 Hz--40 to 105 °COn primary fastening
HABT 100-V/SP10Datasheet
3D
100 A5 to 50.7%0 to 80 Hz20 mV/A-40 to 105 °COn primary fastening
HABT 100-V/SP20Datasheet
3D
100 A5 to 53.75%0 to 80 Hz20 mV/A-40 to 105 °COn primary fastening

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