TMR12020 pages
TMR BIPOLAR SWITCH
TMR1202
TMR1202 Ultra-Low Power TMR Bipolar Switch
Features and Benefits
Applications
Tunneling Magnetoresistance (TMR) Technology
Ultra Low Power Consumption at 1.5μA
High Frequency Response at 1kHz
Bipolar Latching Operation
Low Operate Points for High Sensitivity
Compatible with a Wide Range of Supply Voltages
Excellent Thermal Stability
High Tolerance to External Magnetic Field Interference
Utility Meters including
Water, Gas, and Heat Meters
Solid State Switches
Speed Sensing
Rotary and Linear Position
Sensing
General Description
The TMR1202 is a 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. 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 TMR1202 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 TMR1202S), or TO-92S (P/N TMR1202T).
Block Diagram
MultiDimension Technology Co., Ltd.
Ver. 1.1
Web: www.dowaytech.com/en, Email: info@dowaytech.com
No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R. China
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MDT TMR1202