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

CT433

CT433: XtremeSense® TMR Current Sensor with High dV/dt Immunity, 5kV Isolation and Common-Mode Field Rejection Product Image

CT433 ECAD Model
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Description

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Typical Applications

Packaging

The CT433 is a high bandwidth and ultra-low noise integrated contact current sensor that uses Allegro MicroSystems’ 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 CT433 was optimized for high dV/dt applications which minimizes capacitive coupling to VOUT allowing CT433 to be used in switching applications.

The CT433 is offered in an industry standard 16-lead SOIC- Wide package that is “green” and RoHS compliant. Also available in 5.0 V version as CT432.

  • Optimized for high dV/dt applications
  • Total Error Output: ±0.5% FS
  • 300 ns Response Time, 1 MHz Bandwidth
  • Noise as Low as 9.5 mARMS
  • Integrated 0.5 mΩ Conductor
  • VCC = 3.3 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

The CT433 is offered in an industry standard 16-lead SOIC- Wide package that is “green” and RoHS compliant.

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Part Number Specifications and Availability

Documentation and Resources

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Documents Found: 32
Document Type Document Name
Application Note
Fuse Time vs. Current for the CT43X Contact Current Sensors
Application Note
CT430 Power Measurement Module
Application Note
CT43X Design Recommendation
Application Note
CT43X Performance Overview
Application Note
Using the CT43X TMR Current Sensor in Power Distribution Units (PDUS)
Application Note
Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Brochure
DC Fast Charging: Faster and Farther
Brochure
Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation
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Documents Found: 32
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Webpage
Current Sensor Evaluation Boards Page