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Allegro MicroSystems CT455 XtremeSense™ TMR Contactless Current Sensors

Allegro MicroSystems CT455 XtremeSense™ TMR Contactless Current Sensors are high-bandwidth and low-noise sensors that enable high-accuracy current measurements for consumer, enterprise, and industrial applications. After calibration, these current sensors achieve a total error output of less than ±1% over supply voltage and temperature. The CT455 contactless current sensors are also offered in a user-programmable variant, which allows end-of-line calibration of offset and gain. These current sensors are compact, feature a simple design, and are equipped with a filter function to reduce the noise on the output pin.

The CT455 contactless current sensors feature more than -50dB effective common-mode rejection, 1MHz bandwidth, <300ns response time, and a 3.3V or 5V supply voltage range. These current sensors are assembled in an 8-lead SOIC package and a low-profile, industry-standard 8-lead TSSOP package that is green and RoHS-compliant. Typical applications include solar/power inverters, battery management systems, industrial equipment, power utility meters, power conditioners, and DC/DC converters.

Features

  • User-programmable field range:
    • 6mT to 8mT
    • 12mT to 48mT
  • Preset magnetic field ranges:
    • 0mT to 6mT
    • ±6mT
    • 0mT to 12mT
    • ±12mT
    • 0mT to 24mT
    • ±24mT
    • ±48mT
  • Optimized for high dV/dt applications
  • Linear analog output voltage
  • 1MHz bandwidth
  • <300ns response time
  • 3.3V or 5V supply voltage range
  • Low noise performance
  • Package options:
    • 8-lead TSSOP
    • 8-lead SOIC

Applications

  • Solar/power inverters
  • Battery management systems
  • Industrial equipment
  • Power utility meters
  • Power conditioners
  • DC/DC converters

Functional Block Diagrams

Block Diagram - Allegro MicroSystems CT455 XtremeSense™ TMR Contactless Current Sensors

Videos

Application Diagrams

Application Circuit Diagram - Allegro MicroSystems CT455 XtremeSense™ TMR Contactless Current Sensors

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N.º de artículo Régimen de corriente Voltaje de alimentación operativo Tiempo de respuesta Altura Longitud Voltaje de salida Ancho Subcategoría Voltaje de alimentación - Máx. Voltaje de alimentación - Mín.
CT455-H00B5-TS08 6 mA 5 V 300 ns 1 mm 4.4 mm 5.5 V 3.05 mm Sensors 5.5 V 4.75 V
CT455-H48B5-TS08 6 mA 5 V 300 ns 1 mm 4.4 mm 5.5 V 3.05 mm Sensors 5.5 V 4.75 V
CT455-H00B3-TS08 6 mA 3.3 V 300 ns 1 mm 4.4 mm 3.6 V 3.05 mm Sensors 3.6 V 3 V
CT455-H00B5-SN08 6 mA 5 V 300 ns 1.47 mm 4.89 mm 5.5 V 3.9 mm Sensors 5.5 V 4.75 V
CT455-H00U5-TS08 6 mA 5 V 300 ns 1 mm 4.4 mm 5.5 V 3.05 mm Sensors 5.5 V 4.75 V
CT455-H06B5-TS08 6 mA 5 V 300 ns 1 mm 4.4 mm 5.5 V 3.05 mm Sensors 5.5 V 4.75 V
Publicado: 2024-07-31 | Actualizado: 2024-10-29