Honeywell Nanopower Magnetoresistive Sensor ICs

Honeywell Nanopower Series Magnetoresistive Sensor Integrated Circuits (ICs) require a low average current consumption and a push-pull output that eliminates the need for a pull-up resistor. These sensor ICs promote energy efficiency and can operate from a low supply voltage of 1.65V. The SM351LT Nanopower series are ultra-high magnetic devices that typically operate at 7G, maximum operate at 11G, and a shallow current draw of 360nA. These SM353LT Nanopower series are highly magnetic sensitive devices that typically operate at 14G, maximum operate at 20G, and a shallow current draw of 310nA. Typical applications include industrial equipment, medical equipment, white goods, and battery-optimization position sensors.

Features

  • High sensitivity
  • Non-chopper stabilized design
  • Omnipolar sensing
  • Push-pull output
  • RoHS compliant materials

Applications

  • Industrial:
    • Building access control
    • Industrial smoke detectors
    • Mobile equipment
    • Water, electric, and gas utility meters
  • Medical:
    • Drawer position sensing
    • Exercise equipment
    • Hospital beds
    • Infusion pumps
  • Medium-sized consumer electronics:
    • Battery-optimization position sensor
  • White goods:
    • Fluid flow
    • Lid, door, and drawer position detection

Technical Specifications

Parameters Values
SM351LT SM353LT
Supply Voltage Range 1.65V to 5.5V
Typical Awake Current 1mA 0.8mA
Typical Awake Time 15µs
Typical Average Current 360nA 310nA
Operating Temperature Range -40°C to +85°C
Maximum Output Voltage  0.15V
Maximum Output (Load) Current 5mA