Description
The TMR1213 is a bi-stable digital bipolar magnetic switch that integrates TMR and CMOS technology in order to provide a magnetically triggered digital switch with high sensitivity, high speed, and ultra-low power consumption. It integrates a push-pull half-bridge TMR magnetic sensor and CMOS signal processing circuitry within the same package. Compared with conventional magnetic switch sensors, TMR1213 can detect and store the ON/OFF state triggered by magnetic polarity without power supply, and the latest state can be retrieved immediately after power supply is resumed. Designed for use in applications that are power-critical, performance-demandin
g, and failsafe, this device includes an on-chip TMR voltage generator for precise magnetic sensing, TMR voltage amplifier and comparator, a Schmitt trigger to provide switching hysteresis for noise rejection, and CMOS push-pull output. An internal band gap regulator is used to provide temperature compensated supply voltage for internal circuits, and it allows a wide range of operating supply voltages. The TMR1213 draws only 1.5μA resulting in ultra-low power operation, additionally it has fast response, accurate switching points, excellent thermal stability, and immunity to stray field interference. TMR1213 is available in two compact SOT23-3 and TO92S packages.
SOT23-3 TO92S
Features and Benefits
Tunneling magnetoresistance (TMR) technology Ultra low power consumption at 1.5 μA Compatible with a wide range of supply voltages Bipolar latching operation Passive operation with magnetic memory effect High frequency response at 1 kHz High tolerance to external magnetic field interference Excellent temperature stability RoHS & REACH compliant
Applications
Utility meters: water, gas, and heat meters Solid state switches Bi-stable level switches in elevator doors Magnetic flip level gauges Speed sensing Rotary and linear position sensing
Description
The TMR1213 is a bi-stable digital bipolar magnetic switch that integrates TMR and CMOS technology in order to provide a magnetically triggered digital switch with high sensitivity, high speed, and ultra-low power consumption. It integrates a push-pull half-bridge TMR magnetic sensor and CMOS signal processing circuitry within the same package. Compared with conventional magnetic switch sensors, TMR1213 can detect and store the ON/OFF state triggered by magnetic polarity without power supply, and the latest state can be retrieved immediately after power supply is resumed. Designed for use in applications that are power-critical, performance-demanding, and failsafe, this device includes an on-chip TMR voltage generator for precise magnetic sensing, TMR voltage amplifier and comparator, a Schmitt trigger to provide switching hysteresis for noise rejection, and CMOS push-pull output. An internal band gap regulator is used to provide temperature compensated supply voltage for internal circuits, and it allows a wide range of operating supply voltages. The TMR1213 draws only 1.5μA resulting in ultra-low power operation, additionally it has fast response, accurate switching points, excellent thermal stability, and immunity to stray field interference. TMR1213 is available in two compact SOT23-3 and TO92S packages.
SOT23-3 TO92S
Features and Benefits
Tunneling magnetoresistance (TMR) technology Ultra low power consumption at 1.5 μA
Compatible with a wide range of supply voltages Bipolar latching operation
Passive operation with magnetic memory effect High frequency response at 1 kHz
High tolerance to external magnetic field interference Excellent temperature stability
RoHS & REACH compliant
Applications
Utility meters: water, gas, and heat meters Solid state switches
Bi-stable level switches in elevator doors Magnetic flip level gauges
Speed sensing Rotary and linear position sensing
