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Littelfuse’s TMR is a magnetically-triggered digital switch with high sensitivity and ultra-low power consumption
Littelfuse’s TMR switch is a digital magnetic switch that integrates tunneling magnetoresistance (TMR) and CMOS technology to provide a magnetically-triggered digital switch with high sensitivity and ultra-low power consumption. The TMR switch contains a magnetic sensor and CMOS signal processing circuitry with an on-chip TMR voltage generator for precise magnetic sensing. A TMR voltage amplifier and comparator plus a Schmitt trigger provide switching hysteresis for noise rejection and a bandgap regulator is used to provide a temperature compensated supply voltage for internal circuits.
- TMR technology supports operating point thresholds from 4 Gauss to 35 Gauss
- Ultra-low power consumption: 200 nA
- Operation with north and south pole / X-axis or Z-axis sensing direction
- Available in uni-polar, omni-polar, and bi-polar (latching) operating modes
- Output type: push-pull or open-drain
- Proximity detection
- Utility meters including gas, water, and heat meters
- Position and speed sensing
- Rotary sensing
- Motor and fan control
- Solid-state switches
more information: https://www.littelfuse.com/products/magnetic-sensors-and-reed-switches/tmr-magnetic-ic/tmr-switch/lf11115tmr.aspx
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