Allegro MicroSystems CT41x XtremeSense® TMR Current Sensors

Allegro MicroSystems CT41x XtremeSense® TMR Current Sensors are high bandwidth and ultra-low-noise integrated contact current sensors utilizing the patented XtremeSense® TMR technology. The technology enables high-accuracy current measurements for many consumer, enterprise, and industrial applications. These components support eight current ranges where the integrated current carrying conductor (CCC) will handle up to 65A of current and generates a current measurement as a linear analog output voltage. The 8-lead SOIC packaged CT41x sensors achieve a total output error of about ±1.0% full-scale (FS), a 300ns output response time, and a 6.0mA current consumption. A filter function reduces the noise on the output pin.

Features

  • Integrated contact sensing for low-to-medium current ranges
    • 0 to +20A
    • -20A to +20A
    • 0 to +30A
    • -30A to +30A
    • 0 to +50A
    • -50A to +50A
    • 0 to +65A
    • -65A to +65A
  • Integrated current-carrying conductor (CCC)
  • Linear analog output voltage
  • ±1.0% FS total error output
  • 1MHz bandwidth
  • 300ns response time
  • -40°C to +125°C operating temperature range
  • UL/IEC 62387 certification
    • >2.5kVRMS rated isolation voltage
    • >701VRMS working voltage for basic isolation
    • >344VRMS working voltage for reinforced isolation
  • IEC 61000-4-5 certification
  • Low 9.0mARMS to 19.0mARMS noise at fBW = 100kHz
  • Supply voltages
    • 4.75V to 5.50V for the CT415 and CT418
    • 3.0V to 3.6V for the CT416 and CT417
  • Filter function to reduce noise on the output pin
  • -40dB immunity to common-mode fields
  • AEC-Q100 Grade 1 (under qualification)
  • 8-lead SOIC package
  • RoHS compliant

Applications

  • Solar/power inverters
  • UPS, SMPS, and telecom power supplies
  • Battery management systms
  • Motor control
  • White goods
  • Consumer and enterprise electronics
  • Over-current fault protection

Datasheets

  • CT415
  • CT417
  • CT416
  • CT418

Package Outline

Mechanical Drawing - Allegro MicroSystems CT41x XtremeSense® TMR Current Sensors

Allegro MicroSystems CT41x XtremeSense® TMR Current Sensors