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1 MHz Bandwidth Contactless Current Sensor Optimized for High dV/dt Applications

CT455

1 MHz Bandwidth Contactless Current Sensor Optimized for High dV/dt Applications Product Image

CT455 ECAD Model
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Description

Top Features

Typical Applications

Packaging

The CT455 is a high bandwidth and low noise integrated contactless 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 two (2) standard field ranges where the CT455 senses and translates the magnetic field into a linear analog output voltage.

CT455 is also available in a user-programmable variant, which enables end-of-line calibration of gain and offset. While the sensor is pre-programmed to compensate for gain and offset temperature drift, the ability to adjust offset and gain relaxes mechanical tolerances during sensor mounting.

It has less than 300 ns output response time while the current consumption is about 6.0 mA. The CT455 is housed in an 8-lead SOIC package and a very low profile, industry standard 8-lead TSSOP package that are both “green” and RoHS compliant.

  • Optimized for high dV/dt applications
  • Integrated Contactless Current/Field Sensor
  • Linear Analog Output Voltage
  • 1 MHz Bandwidth
  • Response Time < 300 ns
  • Supply Voltage: 3.3 V to 5.0 V
  • Low Noise Performance
  • AEC-Q100 Grade 1
  • Package Options:
    • 8-lead SOIC
    • 8-lead TSSOP

The CT455 is housed in an 8-lead SOIC package and a very low profile, industry standard 8-lead TSSOP package that are both "green" and RoHS compliant.

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Part Number Specifications and Availability

Discover the next generation of magnetic sensing

Efficient Power Conversion

Accurately measures the full dynamic range and provides a cleaner signal.

Adoption of Wide Bandgap Transistors

Wide bandgap transistors such as GAN and SiC require high bandwidth current sensors which XtremeSense TMR achieves without sacrificing accuracy and resolution.

Reduce the Energy Footprint

Delivers the lowest power consumption in any magnetic sensing product category.

Allegro's XtremeSense™ TMR technology

Superior magnetic sensitivity, low power consumption, and compact size compared to other technologies, driving innovation in applications like renewable energy, electric vehicles, and consumer electronics.

Learn More

Documentation and Resources

Documentation

Design Tools

Third Party Design Tools

Filter Document Type:
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All Types Application Note Brochure Guide
Documents Found: 32
Document Type Document Name
Application Note
What is XtremeSense TMR
Application Note
Calibrating CT455 and CT456 in LabVIEW
Brochure
The Future of Sensing: XtremeSense™ TMR Technology
Brochure
DC Fast Charging: Faster and Farther
Guide
CTD455-BB-06B5 Evaluation Board User Guide
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All Types Software
Documents Found: 32
Document Type Document Name
Software
CT455 Programming Software
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All Types Third Party Tool
Documents Found: 32
Document Type Document Name
Third Party Tool
Suncall Magnetic Sensor Module featuring the CT455
Third Party Tool
Mikroe Current 10 Clickboard