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TDK-Micronas CUR 4000 Flexible Hall-Array Sensors

TDK-Micronas CUR 4000 Flexible Hall-Array Sensors are designed for high-precision current sensing, making them ideal for high-voltage battery monitoring systems of hybrid and electric vehicles (xEVs). These single-axis, contactless, magnetic-field sensors are designed for galvanically isolated DC and AC current measurements. A flexible multi-Hall array enables linear or differential magnetic-field sensing for contactless and precise current sensing up to ≥2000A. These modules can be used for different module concepts such as core-based or coreless. TDK-Micronas CUR 4000 Flexible Hall-Array Sensors are available in a small eight-pin SOIC8 SMD package. Applications include battery monitoring, battery disconnect units, and stationary battery management.

Features

  • Non-intrusive, galvanically isolated contactless current measurement
  • High-precision, linear magnetic field sensing with flexible Hall plates array for core-based current sensing
  • Differential magnetic-field (stray-field compensated) coreless current sensing without shields
  • Programmable linearization with 33 equidistant or 17 variable setpoints
  • Programmable adjustment and temperature compensation for gain and offset
  • Low-power mode with wake-up functionality
  • SPI interface for calibration, test, and debugging via microcontroller
  • Programmable clamping threshold
  • Overvoltage / undervoltage detection on the voltage supply (VSUP)
  • Overtemperature supervision
  • Reverse- / overvoltage protection at VSUP
  • Magnetic-field-out-of-range detection
  • ASIL-B ready (Safety Element out of Context [SEooC]) according to ISO 26262)
  • Qualified according to AEC-Q100-Rev-H

Applications

  • Battery monitoring
  • Battery disconnect units
  • Stationary battery management

Specifications

  • SOIC8 SMD package
  • Product versions
    • CUR4000DJ0000 – multi-Hall plates and linear measurements
    • CUR4000DJ0001 – dual Hall plates and differential or linear measurements
  • Digital 16-bit readout of magnetic-field information via SPI (up to 5MHz)
  • Up to 8kHz signal bandwidth
  • ±100 mT magnetic-field range
  • 3V to 5.5V operating voltage
  • -40°C to +150°C ambient temperature range

Block Diagram

TDK-Micronas CUR 4000 Flexible Hall-Array Sensors

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TDK-Micronas CUR 4000 Flexible Hall-Array Sensors