Part No.:TMR1157
Previous Part No.:
Supply Voltage(V):3~40 V
Power Consumption(μA):0.6mA
Operating Modes:

continuous power, no duty cycling

Sensing Direction:Z-axis
Bop (Gs,25°C)(Gs):140
Brp (Gs,25°C)(Gs):110
Output Interface:Open Drain
Package:SOT23-3 TO92S
Lead Time:3 months
  • TMR1157

General DescriptionTMR1157 is a digital unipolar 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 is designed for use in applications that are both power-critical and performance-demanding. It contains a push-pull full-bridge TMR magnetic sensor and CMOS signal processing circuitry within the same package, including an on-chip TMR voltage generator for precise magnetic sensing, a TMR voltage amplifier and comparator plus a Schmitt trigger to provide switching hysteresis for noise rejection, and CMOS push-pull output. An internal band gap regulator is used to provide a temperature compensated supply voltage for internal circuits, permitting a wide range of supply voltages up to 40V. The TMR1157 draws only 0.6mA resulting in low power operation. It has fast response, accurate switching points, excellent thermal stability, and immunity to stray field interference. It is available in the SOT23-3 package (P/N TMR1157S) or the TO-92S package (P/N TMR1157T).

Features and Benefits:(1Tunneling Magnetoresistance (TMR) Technology2Low Power Consumption < 0.6mA3High Frequency Response ≥ 100kHz4Unipolar Latching Operation5Z-axis sensing direction compatible with Hall Effect6High Supply Voltage of 40V and 30V Reverse Voltage7Open Drain Output8Excellent Thermal Stability9High Tolerance to External Magnetic Field Interference

Applications:(1Utility Meters including Water, Gas, and Heat Meters2Solid State Switches3Position and Speed Sensing4Motor and Fan Control5Power Window

sot23-3 to92s(4x3x1.5)


The information provided herein by MultiDimension Technology Co., Ltd. (hereinafter MultiDimension) is believed to be accurate and reliable. Publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. MultiDimension reserves the right to make changes to product specifications for the purpose of improving product quality, reliability, and functionality. MultiDimension does not assume any liability arising out of the application and use of its products. MultiDimension’s customers using or selling this product for use in appliances, devices, or systems where malfunction can reasonably be expected to result in personal injury do so at their own risk and agree to fully indemnify MultiDimension for any damages resulting from such applications.

“MultiDimension”, “MultiDimension Sensing the Future”, and “MDT” are registered trademarks of MultiDimension Technology Co., Ltd.

  • 在线客服