Thermal MEMS Accelerometers


  • Overview
  • Specifications
  • Features and Benefits
  • Applications

The MXD6240/6241AU is an inclination sensor with 8 built-in, pin-programmable angle thresholds. If the device orientation with respect to vertical exceeds the programmed threshold angle, the digital output changes state to alert the system to a tip-over or fall-down event. An internal anti-vibration filter provides >45dB attenuation above 25Hz, and >60dB attenuation above 50Hz.

The MXD6240/6241AU is designed to run autonomously, making it ideal for systems where there is no uC available. One of eight threshold angles (40, 42.5, 45, 50, 55, 60, 65, and 70 degrees) is selected by connecting each of three programming pins to Vdd or Gnd. The threshold accuracy is guaranteed to meet +/-5 degrees (max) over a temperature range of -20C to +80C (Operation is guaranteed over -40C to +125C).

Axes Roll
Range 0 +/- 90
Output 1-Wire
BW 3.125
Supply Voltage 3 - 5
Size 3 x 3
Auto Qual'd Call
Temp Comp Yes
Price (1k) $4.20
  • 8 Pin-programmable angle thresholds
  • Single-wire digital output
  • Fully autonomous- no uC required
  • Built-in self-test functionality
  • Small, 6-pin 3 x 3mm LCC package
  • Operates from 2.7V to 5.5V Supply
  • No sensor resonance
  • Vibration filter: tolerates 20 g p-p @ 50Hz vibration with < 1º incremental angle error
  • High reliability automotive process
  • RoHS compliant
  • Operates from -40 C to +125 C
  • Motorycle Fall-Down Detection
  • Off-Road Vehicle Tip Over Detection
  • Jet Ski / Watercraft
  • General Tip-Over Detection (Space Heaters, Irons, etc...)