TMR4004

TMR40XX GEARTOOTH SENSOR TMR geartooth sensor with high sensitivity to magnetic field Technical Information Ver.2018-06 General  The TMR40XX magnetic geartooth sensors utilize a unique push-pull Wheatstone bridge design, including one or two Wheatstone full bridges, with four or eight unshielded high sensitivity TMR sensing elements. The Wheatstone bridge creates a differential voltage output with respect to the magnetic field gradient along the sensor’s sensitive direction. In the dual-bridge configuration, the two orthogonal Wheatstone full bridges provide sine and cosine voltage signals that can be used to LGA6L(3×3×0.9) measure both the gear tooth position and the direction of motion. The TMR40XX magnetic geartooth sensors offer superior performance with high sensitivity to the magnetic field gradient. They can detect very small changes in magnetic field, along with good temperature stability of the output signal .   The TMR40XX magnetic gear tooth sensors are available in 14 different standard spacings of 0.25mm、0.4mm、0.50mm、0.6mm、0.75mm、0.8mm、1.0mm、1.2mm、 1.4mm、1.6mm、1.8mm、2.0mm、3.0mm and 4.0mm. LGA6L(3×6×0.9) Two types of small form factor LGA packages are available. The package dimensions are 3mm × 3mm × 0.9mm and 3mm × 6mm × 0.9mm. Features and Benefits  Tunneling Magnetoresistance (TMR) Technology  High Saturation Point Allowing Operation under Large DC Magnetic Field  Wide Air-Gap Tolerance  High Sensitivity to Magnetic Field Gradient  Capable of Small-Pitch Gear Tooth Detection  DC(Zero-Speed) Operation  Sine/Cosine Signal Outputs with Precise Phase Shift  Excellent Thermal Stability  Good Immunity to Environmental Magnetic Field  Compact Ultra-Thin Package Typical Applications  Gear Tooth Motion, Speed, and Direction Sensing  Linear and Rotary Speed Sensing  Linear and Rotary position Sensing  Linear Magnetic Scales  Magnetic Encoders MultiDimension Technology(MDT®) Phone：0512-56366222 Address : No. 7 Guangdong Road Zhangjiagang Free Trade Zone Jiangsu, China Postcode : 215634 Fax：0512-56366200 1|5 Internet：www.dowaytech.com E-Mail：sales@dowaytech.com TMR40XX GEARTOOTH SENSOR TMR geartooth sensor with high sensitivity to magnetic field Absolute Maximum Ratings PARAMETER SYMBOL LIMIT UNIT Supply Voltage VCC 7 V Reverse Supply Voltage HRCC 7 V Magnetic Field He 1500 Oe ESD Voltage VESD 4000 V Operating Temperature TA -40~125 °C Storage Temperature Tstg -50~150 °C ⑴ Electrical & Magnetic Characteristics (VCC=1.0V, TA=25 °C, Differential Output) PARAMETER SYMBOL CONDITION Supply Voltage VCC Operating Supply Current MIN Output Open ICC TYPICAL MAX UNIT 1 7 V 67 ⑵ μA ⑶ kOhm Bridge Resistance R 15 Single Resistor Sensitivity SEN 0.46 ±70 %△R/Oe ⑷ Saturation Field Hsat Linear Range 1 LIN1 LIN≥98% ±20 Oe Linear Range 2 LIN2 LIN≥95% ±40 Oe Offset Voltage Voffset Hysteresis Hys Maximun Differential Voltage Output VoutMax Temperature Coefficient of Resistance TCR Temperature Coefficient of Sensitivity TCS -20 Fit@±20Oe H=0 Oe Oe 20 mV/V 1 %FS 650 mV/V -985 PPM/°C -1800 PPM/°C Note: (1) 1 Oe (Oersted) = 1 Gauss in air = 0.1 millitesla = 79.8 A/m. (2) Supply current is determined by the resistance of the sensor. (3) Custom sensor resistance may be available upon request. (4) The sensors may saturate if the magnetic field exceeds this range. Saturation field can be custom designed to meet special requirements. Usage Method P p p=P/2 Direction of Sensitivity MultiDimension Technology(MDT®) Phone：0512-56366222 Address : No. 7 Guangdong Road Zhangjiagang Free Trade Zone Jiangsu, China Postcode : 215634 Fax：0512-56366200 2|5 Internet：www.dowaytech.com E-Mail：sales@dowaytech.com TMR40XX GEARTOOTH SENSOR TMR geartooth sensor with high sensitivity to magnetic field Wheatstone Bridge Connection Single-Bridge Configuration Dual-Bridge Configuration TMR Sensing Elements Layout Dual-Bridge Single-Bridge PART SINGLE/DUAL TMR ELEMENT SPACING GEAR TOOTH PITCH PACKAGE NUMBER BRIDGE p(mm) P(mm) FORMAT TMR4001 SINGLE 0.25 About 0.5 LGA6L(3×3×0.9) TMR4002 SINGLE 0.5 About 1.0 LGA6L(3×3×0.9) TMR4003 SINGLE 0.75 About 1.5 LGA6L(3×3×0.9) TMR4004 DUAL 0.5 About 1.0 LGA6L(3×3×0.9) TMR4005 DUAL 1 About 2.0 LGA6L(3×3×0.9) TMR4006 DUAL 2 About 4.0 LGA6L(3×6×0.9) TMR4007 DUAL 3 About 6.0 LGA6L(3×6×0.9) TMR4008 DUAL 4 About 8.0 LGA6L(3×6×0.9) TMR4011 DUAL 0.4 About 0.8 LGA6L(3×3×0.9) TMR4012 DUAL 0.6 About 1.2 LGA6L(3×3×0.9) TMR4013 DUAL 0.8 About 1.6 LGA6L(3×3×0.9) TMR4014 DUAL 1 About 2.0 LGA6L(3×6×0.9) TMR4015 DUAL 1.2 About 2.4 LGA6L(3×6×0.9) TMR4016 DUAL 1.4 About 2.8 LGA6L(3×6×0.9) TMR4017 DUAL 1.6 About 3.2 LGA6L(3×6×0.9) TMR4018 DUAL 1.8 About 3.6 LGA6L(3×6×0.9) MultiDimension Technology(MDT®) Phone：0512-56366222 Address : No. 7 Guangdong Road Zhangjiagang Free Trade Zone Jiangsu, China Postcode : 215634 Fax：0512-56366200 3|5 Internet：www.dowaytech.com E-Mail：sales@dowaytech.com TMR40XX GEARTOOTH SENSOR TMR geartooth sensor with high sensitivity to magnetic field Pin Configuration MultiDimension Technology(MDT®) Phone：0512-56366222 Address : No. 7 Guangdong Road Zhangjiagang Free Trade Zone Jiangsu, China Postcode : 215634 Fax：0512-56366200 4|5 Internet：www.dowaytech.com E-Mail：sales@dowaytech.com TMR40XX GEARTOOTH SENSOR TMR geartooth sensor with high sensitivity to magnetic field Package Information (Unit: mm) and TMR Sensor Position (Blue shadow) LGA6L(3×3×0.9) Package Drawing 40XX LGA6L(3×6×0.9) Package Drawing 40XX MultiDimension Technology(MDT®) Phone：0512-56366222 Address : No. 7 Guangdong Road Zhangjiagang Free Trade Zone Jiangsu, China Postcode : 215634 Fax：0512-56366200 5|5 Internet：www.dowaytech.com E-Mail：sales@dowaytech.com