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Integrated Omnipolar TMR Analog Sensor

CT8150, CT8152

Digital TMR Latch/Analog TMR Sensor, Omnipolar/Bipolar/Unipolar Digital Latch - CT81xx

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Description

Top Features

Typical Applications

Packaging

The CT815x series of Tunnel Magnetoresistance (TMR) analog sensors (with option for digital latch output) are designed for consumer and industrial applications. It is based on Allegro MicroSystems’ patented Magnetic Logic Unit™ (MLU™) technology with integrated CMOS process to provide a monolithic solution for superior sensing performance. Also, the CT815x analog sensors with XtremeSense™ performance where it offers stable magnetic operation over temperature.

For applications that require a very small form factor and low profile, the CT815x sensors are assembled in a 4-lead LGA package. The CT8150 is also available in an industry standard 3-lead SOT-23 package while CT8152 is offered in a 5-lead SOT23 package to support high volume manufacturing.

  • Analog Output Mode, Current Consumption: ~3.0 µA
  • Current Consumption in Digital Output Mode: ~120 nA @ VDD = 1.8 V and fS = 12.5 Hz
  • Supply Voltage Range: 1.7 V to 5.5 V
  • Sensor Polarity: Omnipolar
  • Sample and Hold Analog Output @ fS = 100 Hz
  • Dual Analog and Digital Output Operation Capability
  • Digital Output is Push-pull
  • Under-Voltage Lockout (UVLO)
  • Package Options
    • 3 and 5-lead SOT23
    • 4-lead LGA, 1.45 x 1.45 x 0.44 mm
  • IoT Devices
  • Smartphones, Tablets and Laptops
  • Door or Lid Closure
  • Reed Switch Replacement
  • Tamper-proofing for Utility Smart Meters
  • Fluid Level Sensing/Detection
  • Proximity Detection
  • Motor Controllers
  • Gimbals for Camera Systems in Drones/UAVs
  • Industrial Machinery/Robots
  • Medical Devices

For applications that require a very small form factor and low profile, the CT815x sensors are assembled in a 4-lead LGA package. The CT8150 is also available in an industry standard 3-lead SOT-23 package while CT8152 is offered in a 5-lead SOT23 package to support high volume manufacturing.

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Part Number Specifications and Availability

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.

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Documentation and Resources

Documentation

Third Party Design Tools

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Documents Found: 32
Document Type Document Name
Application Note
What is XtremeSense TMR
Application Note
From Hall Effect to TMR
Brochure
The Future of Sensing: XtremeSense™ TMR Technology
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Documents Found: 32
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LiveBench
TMR Position Sensor