Technology

MDT TMR1228D magnetic switch supports always-on sensing

MDT TMR1228D magnetic switch supports always-on sensing

Key Takeaways

  • The MDT TMR1228D magnetic switch supports always-on sensing with high sensitivity and low power consumption
  • It features dual-axis bipolar latch magnetic switch IC with ±5 Gauss operating and release points
  • The TMR1228D is designed for smart utility metering, industrial position sensing, speed detection, and motion control applications
  • It offers independent X- and Y-axis sensing channels with separate outputs, supporting industry-standard quadrature A/B signals
  • The device enables the use of smaller magnets, wider air-gaps, and greater mechanical design flexibility

Introduction to the MDT TMR1228D

The MDT TMR1228D is a dual-axis bipolar latch magnetic switch IC that combines always-on magnetic field detection, high sensitivity, and low power consumption. This device is designed for various applications, including smart utility metering, industrial position sensing, speed detection, and motion control.

Features and Benefits

The TMR1228D integrates high-sensitivity TMR sensing elements with CMOS signal-conditioning circuitry to convert changing magnetic fields into accurate digital output signals. Unlike conventional Hall-effect switches, the TMR1228D leverages TMR's inherent low-power characteristics to achieve continuous magnetic field detection while consuming as little as 1.5μA per axis. This eliminates missed detection events caused by intermittent sampling, delivering faster response and higher reliability for always-on sensing applications.

Comparison of MDT TMR1228D and TMR1222D

Feature MDT TMR1228D MDT TMR1222D
Operating Threshold ±5 Gauss ±17 Gauss
Power Consumption 1.5μA per axis 1.5μA per axis
Sensing Channels Independent X- and Y-axis Independent X- and Y-axis
Output Signals Industry-standard quadrature A/B signals Industry-standard quadrature A/B signals

Applications and Uses

The TMR1228D is ideal for electronic water, gas, and heat meters, quadrature encoder systems, rotary and linear position and speed sensing, and other battery-powered or always-on sensing applications. Its high sensitivity and low power consumption make it an attractive solution for applications that require accurate and reliable magnetic field detection.

Conclusion

The MDT TMR1228D is a highly sensitive and low-power magnetic switch that supports always-on sensing applications. With its dual-axis bipolar latch magnetic switch IC and independent X- and Y-axis sensing channels, this device offers greater flexibility and reliability for various applications.

Bottom Line

The MDT TMR1228D is a reliable and efficient solution for applications that require accurate and continuous magnetic field detection. Its high sensitivity, low power consumption, and independent sensing channels make it an ideal choice for smart utility metering, industrial position sensing, and motion control applications. With its compact design and low power requirements, the TMR1228D is poised to become a leading solution for always-on sensing applications.

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