Description
The TMR1302B is a digital omnipolar 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. Designed for use in applications that are both power-critical and performance-demandin
g, 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 TMR1302B 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. TMR1302B 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 High frequency response at 1 kHz Operation with north or south pole Compatible with a wide range of supply voltages Low operate points for high sensitivity High tolerance to external magnetic field interference Excellent temperature stability RoHS & REACH compliant
Applications
Utility meters: water, gas, and heat meters Proximity switches Speed sensing Linear and rotation position sensing
Description
The TMR1302B is a digital omnipolar 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. Designed for use in applications that are both power-critical and performance-demanding, 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 TMR1302B 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. TMR1302B 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
High frequency response at 1 kHz Operation with north or south pole
Compatible with a wide range of supply voltages Low operate points for high sensitivity
High tolerance to external magnetic field interference Excellent temperature stability
RoHS & REACH compliant
Applications
Utility meters: water, gas, and heat meters Proximity switches
Speed sensing Linear and rotation position sensing
