Allegro MicroSystems CT220 XtremeSense TMR Contactless Current Sensors

Allegro MicroSystems CT220 XtremeSense™ TMR Contactless Current Sensors high-linearity and high-resolution contactless modules with patented XtremeSense TMR technology. These sensors measure the magnetic field of the current flowing through a busbar or printed circuit board (PCB) trace and convert it to an analog output voltage that represents the field and current. These contactless current sensors provide a typical total output error of ±0.5% while the sensing field (current) is as low as 5mA. The series offers a 2.7V to 5.5V supply voltage range and a 1.2mA supply current rating in a five-lead SOT23 package. Allegro MicroSystems CT220 XtremeSense TMR Contactless Current Sensors feature inherently high isolation, making them an ideal solution for applications requiring product safety compliance.

Features

  • High-linearity and high-resolution contactless current sensor
  • Patented XtremeSense TMR technology
  • 2.7V to 5.5V supply voltage range
  • 1.2mA supply current
  • Up to 1000A AC or DC contactless current sensing range
  • 5-lead SOT23 package
  • Inherently high isolation
  • -40°C to +85°C industrial operating temperature range

Applications

  • Contactless current sensing measurements
  • Motor controls
  • Solar inverters
  • Power distribution units (PDUs)
  • UPS, SMPS, and telecom power supplies
  • Smart appliances
  • IoT smart plugs / energy devices
  • Battery management systems
  • Battery chargers
  • PC and servers
Published: 2021-01-12 | Updated: 2024-08-20