TMR2901 MULTIDIMENSION | Alldatasheet

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Technical content

Datasheet V1.0a TMR2901 Ultra High Sensitivity TMR linear sensor General Description The TMR2901 linear sensor utilizes a unique push -pull Wheatstone bridge composed of four TMR sensor elements. The TMR2901 is available in a 3 mm X 3 mm X 0.75 mm DFN8 package and 6mm X 5mm X 1.5mm SOP8 package. Features and Benefits  Tunneling Magneto resistance (TMR) Technology  High Sensitivity (25mV/V/Oe)  Very Low Noise Spectral Density (2nT/√Hz @1Hz)  Low Power Consumption  Excellent Thermal Stability  Very Low Hysteresis  Compatible with wide Range of Supply Voltages  NO need for set/reset calibration

Applications

 Weak Magnetic Field Sensing  Current Sensors  Position and Displacement Sensing TMR2901 Transfer Curve The following figure shows the response of the TMR2901 to an applied magnetic field in the range of ±5 Oe and ±30 Oe when the TMR2901 is biased at 1V.

Datasheet V1.0a Pin Configuration (Arrow indicates direction of applied field that generates a positive output voltage.) (SOP8 top view) (DFN bottom view) Pin No. Pin Name Pin Function 1,2,7,8 N/A Not Connected

3 GND Ground

4 V- Analog Differential Output 2

5 V+ Analog Differential Output 1

6 Vcc Supply Voltage

Parameter Symbol Limit Unit Supply Voltage VCC 7 V Reverse Supply Voltage VRCC 7 V Max Exposed Field HE 4000 Oe(1) ESD Voltage VESD 4000 V Operating Temperature TA -40~125 °C Storage Temperature Tstg -50 ~150 °C Specification (VCC=1.0V, TA=25° C,Differential Output) Parameter Symbol Conditions Min Typ Max Unit Supply Voltage VCC Operating 1 7 V Supply Current ICC Output Open 0.1(2) mA Resistance R 7 45，9 10 KOhm Sensitivity SEN Fit @±1 Oe 20 25 27 mV/V/Oe Saturation Field Hsat ±20 Oe Non-Linearity NONL Fit @±1 Oe 0.3 %FS Offset Voltage Voffset -10 10 mV/V Hysteresis Hys Fit @±1 Oe 0.2 Oe Temperature Coefficient of Resistance TCR H = 0 Oe -500 PPM/°C Temperature Coefficient of Sensitivity TCS -1100 PPM/°C Self Noise Ni @1Hz 2 nT/√Hz Notes:

Datasheet V1.0a (1) 1 Oe (Oersted) = 1 Gauss in air = 0.1 millitesla = 79.8 A/m. (2) Custom resistance may be available upon request.

Package Information

SOP8 package drawing: DFN package drawing:

Datasheet V1.0a TMR Sensor Position Top view and side view (unit:mm)

Datasheet V1.0a MultiDimension Technology Co., Ltd. Address:No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, China Web: www.dowaytech.com/en Email: info@dowaytech.com 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. MultiDi mension 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.