XtremeSense® TMR Sensor

XtremeSense® TMR Current Sensor with High dV/dt Immunity, 5kV Isolation and Common-Mode Field Rejection

Data Sheets

Crocus Chip CT432

The CT432 is a high bandwidth and ultra-low noise integrated contact current sensor that uses Crocus Technology’s patented XtremeSense® TMR technology to enable high accuracy current measurements for many consumer, enterprise, and industrial applications. It supports multiple current ranges where the integrated current carrying conductor (CCC) will handle up to 70 A of current and generates a current measurement as a linear analog output voltage. It achieves a total output error of less than ±1.0% full-scale (FS) over supply voltage and the full temperature range.

It has about a 300 ns output response time while the current consumption is about 6.0 mA and is immune to common mode fields. The CT432 was optimized for high dV/dt applications which minimizes capacitive coupling to VOUT allowing CT432 to be used in switching applications.

The CT432 is offered in an industry-standard 16-lead SOIC- Wide package that is “green” and RoHS compliant.

Also available in 3.3 V version as CT433.

Product features and performance​

  • Optimized for high dV/dt applications
  • Total Error Output: ±0.5% FS
  • 300 ns Response Time, 1 MHz Bandwidth
  • Noise as Low as 9.0 mARMS
  • Integrated 0.5 mΩ Conductor
  • VCC = 5.0 V
  • Common Mode Field Rejection: -54 dB
  • Rated Isolation Voltage: >5 kVRMS
  • UL/IEC 62368-1 and UL1577 Certification
  • IEC 61000-4-5 Certified
  • AC or DC Current Range:
    • +20.0 ADC / ±20.0 APK
    • +30.0 ADC / ±30.0 APK
    • +50.0 ADC / ±50.0 APK
    • +65.0 ADC / ±65.0 APK
    • +70.0 ADC / ±70.0 APK
  • 16-lead SOIC-Wide package
  • 8mm creepage package

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