TMR1212 Bi-stable TMR Bipolar Magnetic Switch with Passive Memory Effect Datasheet

PublishTime：2020-10-31

The TMR1212 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, TMR1212 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 TMR1212 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.It is available in two packaging form factors:SOT23-3 (P/N TMR1212S), or TO-92S(P/N TMR1212T).
Features and Benefits:
●Tunneling Magnetoresistance (TMR) Technology
●Ultra Low Power Consumption at 1.5uA
●Passive Operation with Magnetic Memory Effect
●High Frequency Response at 1KHz
●Bipolar Latching Operation
●Compatible with a Wide Range of Supply Voltages
●Excellent Thermal Stability
●High Tolerance to External Magnetic Field Interference

Brand of Product：	MDT
Part#：	TMR1212 、 TMR1212S 、 TMR1212T More Part#
Product Category：	bi-stable digital bipolar magnetic switch 、 Bi-stable TMR Bipolar Magnetic Switch More
Application：	[ Utility Meters ][ Water Meters ][ Gas Meters ][ Heat Meters ][ Bi-stable Level Switches in Elevator Doors ][ Magnetic Flip Level Gauges ][ Solid State Switches ][ Speed Sensing ][ Rotary Position Sensing ][ Linear Position Sensing ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOT23-3;TO-92S
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2020/09/08
Version Number：	V1.0
Data Encoding：
Data Size：	728 KB

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