CT42x XtremeSense® TMR Sensor

CT42x XtremeSense® TMR Sensor

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CT42x : 1 MHz, High Precision XtremeSense® TMR Isolated Current Sensor in SOIC-8 Package

The CT42x family is a high bandwidth, fast response and ultra-low noise integrated contact current sensors that use Crocus Technology’s patented XtremeSense® TMR technology to enable high accuracy current measurements for many consumer, enterprise, and industrial applications. It supports eight (8) current ranges where the integrated current carrying conductor (CCC) will handle up to 65 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 voltage and the full temperature range.

The CT42x family is offered in an industry standard 8-lead SOIC package that is “green” and RoHS compliant.

Product features and performance:

  • CT425 & CT428 (5.0 V version), CT426 & CT427 (3.3 V version)
  • Integrated 0.5 mΩ Conductor
  • Total Error Output: ±0.5% FS (typ.)
  • 300 ns Response Time, 1 MHz Bandwidth
  • Noise as Low as 9 mARMS
  • Immunity to Common Mode Field: -54 dB
  • Rated Isolation Voltage: >4 kVRMS
  • UL/IEC 62387 and UL1577 Certified
  • 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
  • Pin #6 Functionality
    • CT427 & CT248: Over-Current Detection Output Pin
    • CT425 & CT426: Enhanced Filter to Lower Noise

DATASHEETS

PRODUCT BRIEF

APPLICATION NOTES

SAMPLES & EVALUATION BOARDS

Part Order Number Current Range Sensitivity (mV/V/mT) VOQ
(V)		 VCC
(V)		 Polarity Typ. Total Error Max. Total Error VREF Output Filter Fault# for OCD CMFRR (dB) Response Time (ns) Auto Grade Operating Temperature Range Package
CT425-ESN820DR 0 A to +20 A 200.0 0.50 5.0 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN820DR 0 A to +20 A 200.0 0.50 5.0 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN820DR 0 A to +20 A 200.0 0.50 5.0 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN820MR -20 A to +20 A 100.0 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN820MR -20 A to +20 A 100.0 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN820MR -20 A to +20 A 100.0 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN830DR 0 A to +30 A 133.3 0.50 5.0 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN830DR 0 A to +30 A 133.3 0.50 5.0 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN830DR 0 A to +30 A 133.3 0.50 5.0 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN830MR -30 A to +30 A 66.7 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN830MR -30 A to +30 A 66.7 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN830MR -30 A to +30 A 66.7 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN850DR 0 A to +50 A 80.0 0.50 5.0 Unipolar ±0.7% FS <±1.5% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN850DR 0 A to +50 A 80.0 0.50 5.0 Unipolar ±0.7% FS <±1.5% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN850DR 0 A to +50 A 80.0 0.50 5.0 Unipolar ±0.7% FS <±1.5% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN850MR -50 A to +50 A 40.0 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN850MR -50 A to +50 A 40.0 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN850MR -50 A to +50 A 40.0 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN865DR 0 A to +65 A 61.5 0.50 5.0 Unipolar ±0.7% FS <±1.5% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN865DR 0 A to +65 A 61.5 0.50 5.0 Unipolar ±0.7% FS <±1.5% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN865DR 0 A to +65 A 61.5 0.50 5.0 Unipolar ±0.7% FS <±1.5% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT425-ESN865MR -65 A to +65 A 30.8 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT425-HSN865MR -65 A to +65 A 30.8 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT425-ASN865MR -65 A to +65 A 30.8 2.50 5.0 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT426-ESN820DR 0 A to +20 A 100.0 0.65 3.3 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT426-HSN820DR 0 A to +20 A 100.0 0.65 3.3 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT426-ASN820DR 0 A to +20 A 100.0 0.65 3.3 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT426-ESN820MR -20 A to +20 A 50.0 1.65 3.3 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT426-HSN820MR -20 A to +20 A 50.0 1.65 3.3 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT426-ASN820MR -20 A to +20 A 50.0 1.65 3.3 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT426-ESN830DR 0 A to +30 A 66.7 0.65 3.3 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT426-HSN830DR 0 A to +30 A 66.7 0.65 3.3 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT426-ASN830DR 0 A to +30 A 66.7 0.65 3.3 Unipolar ±0.7% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8
CT426-ESN830MR -30 A to +30 A 33.3 1.65 3.3 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +85°C SOIC-8
CT426-HSN830MR -30 A to +30 A 33.3 1.65 3.3 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 – -40°C to +125°C SOIC-8
CT426-ASN830MR -30 A to +30 A 33.3 1.65 3.3 Bipolar ±0.5% FS <±1.0% FS No Yes No -54 300 AEC-Q100 Grade 1 -40°C to +125°C SOIC-8