TMR2905P

Datasheet V1.0a TMR2905 Ultra High Sensitivity TMR linear sensor General Description The TMR2905 linear sensor utilizes a unique push-pull Wheatstone bridge composed of four unshielded TMR sensor elements. The unique bridge design provides a high sensitivity differential output that is linearly proportional to a magnetic field applied parallel to the surface of the sensor package, and it provides superior temperature compensation of the output. The TMR2905 is packaged in 6mm X 5mm X 1.5mm SOP8 named TMR2905P, and packaged in3mmX3mmX0.75mm DFN8 named TMR2905D. Features and Benefits  Tunneling Magneto resistance (TMR) Technology  Ultra High Sensitivity (50~60mV/V/Oe)  Large Dynamic Range  Very Low Power Consumption  Excellent Thermal Stability  Very Low Hysteresis  Compatible with wide Range of Supply Voltages TMR2905  Ultra Low Noise Spectral Density(＜2nT/sqrt(Hz)@1Hz) PN series Resistance Package TMR2905SP 5kOhm SOP8 TMR2905BP 45kOhm SOP8  Weak Magnetic Field Sensing TMR2905SD 5kOhm DFN8  Current Sensors TMR2905BD 45kOhm DFN8 Applications  Position and Displacement Sensing Transfer Curve The following figure shows the response of the TMR2905 to an applied magnetic field in the range of ±15 Oe and ±30 Oe when the TMR2905 is biased at 1V. 1/5 Datasheet V1.0a Pin Configuration SOP8 Top view DFN8 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 Absolute Maximum Ratings Parameter Symbol Limit Unit Supply Voltage VCC 7 V Reverse Supply Voltage VRCC 7 V Max Exposed Field HE 4000 Oe ESD Voltage VESD 4000 V Operating Temperature TA -40~125 °C Storage Temperature Tstg -50 ~150 °C (1) Specification (VCC=1.0V, TA=25°C,Differential Output) Parameter Symbol Conditions Supply Voltage VCC Operating Supply Current ICC Output Open R Between Vcc and GND Sensitivity SEN Fit @±5 Oe Saturation Field Hsat Non-Linearity NONL Offset Voltage Voffset Hysteresis Hys Fit @±30 Oe TCR H = 0 Oe Resistance (3) TMR2905S TMR2905B Temperature Coefficient of Resistance Temperature Coefficient of Sensitivity Min Typ 1 0.2，0.02 7 V (2) mA 5 8 KOhm 35 45 55 KOhm 65 mV/V/Oe 45 ±10 Oe 2 %FS -30 2/5 Unit 2 Fit @±5 Oe TCS Max 30 mV/V 1 Oe -500 PPM/°C -1100 PPM/°C Datasheet V1.0a Notes: (1) 1 Oe (Oersted) = 1 Gauss in air = 0.1 millitesla = 79.8 A/m. (2) ICC = VCC/R (3)45Kohm be defined TMR2905B，5Kohm be defined TMR2905S，Custom resistance may be available upon request. Package Information SOP8 封装图 DFN8 package drawing 3/5 Datasheet V1.0a TMR Sensor Position SOP8 package DFN8 package Top view and side view (unit:mm) 4/5 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. 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. 5/5