MMS201H MULTIDIMENSION | Alldatasheet

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Technical content

MultiDimension Technology Co., Ltd. Page 1 of 5 Web: www.dowaytech.com/en, Email: info@dowaytech.com MDT MMS201H No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R. China Ver. 1.1 TMR OMNIPOLAR SWITCH MMS201H MMS201H TMR Omnipolar Switch General Description The MMS 201H is a digital omnipolar magnetic s witch that integrates TMR and CMOS technology in order to provide a magnetically triggered digital switch with high sensitivi ty, high speed, and 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 high accuracy applications, this device includes an on -chip TMR voltage g enerator 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 MMS201H features accurate switching points, fast response, a wide operating temperature range, and excellent ESD immunity. It is available in two packaging form factors: SOT23-3 (P/N MMS201HS), or TO-92S (P/N MMS201HT). Block Diagram Features and Benefits  Tunneling Magnetoresistance (TMR) Technology  Operation with North or South Pole  Low Operate Points for High Sensitivity  V ery Low Power Consumption  Compatible with a Wide Range of Supply V oltages  Excellent Thermal Stability  High-Speed Detection and High Frequency Response  High ESD Tolerance

Applications

 Utility Meters including Water, Gas, and Heat Meters  Solid State Switching  Speed Sensing  Rotary Position Sensing  Linear Displacement Sensing

MultiDimension Technology Co., Ltd. Page 2 of 5 Web: www.dowaytech.com/en, Email: info@dowaytech.com MDT MMS201H No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R. China Ver. 1.1 Pin Configuration Pin Name Pin No. Pin Function TO-92S SOT23-3 VOUT 1 2 Output GND 2 3 Ground VCC 3 1 Supply V oltage Absolute Maximum Ratings Parameter Symbol Limit Unit Supply V oltage VCC 7 V Reverse Supply V oltage VRCC 0.4 V Output Current IOUTSINK 10 mA Magnetic Flux Density B 1200 G ESD level(HBM) VESD 5.5 kV Operating Ambient Temperature TA -40 ~125 °C Storage Temperature Tstg -50 ~ 150 °C Electrical Characteristics (VCC = 3.0V, TA = 25°C) Parameter Symbol Conditions Min Typ. Max Unit Supply V oltage VCC Operating 1.8 3.0 5.5 V Output High V oltage VOH 2.7 3 V Output Low V oltage VOL 0 0.2 V Supply Current ICC Output Open 4.5 5.5 μA Response Frequency F 1 kHz Power-On Time tPO 200 μs Note: a 100nF capacitor is connected between VCC and GND during all tests in the above table. TO-92S Top View SOT23-3 Top View

MultiDimension Technology Co., Ltd. Page 3 of 5 Web: www.dowaytech.com/en, Email: info@dowaytech.com MDT MMS201H No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R. China Ver. 1.1 Magnetic Characteristics (VCC = 3.0V, TA = 25°C) Parameters Symbol Min Typ. Max Units Operate Point BOPS 10 15 20 G BOPN -20 -15 -10 G Release Point BRPS 5 10 15 G BRPN -15 -10 -5 G Hysteresis BH 5 G Voltage and Temperature Characteristics Output Behavior vs. Magnetic Pole Parameter Test Conditions Output South Pole B > BOPS Low (On) 0 < B < BRPS High (Off) North Pole B < BOPN Low (On) 0 > B > BRPN High (Off) Note: when power is turned on under zero magnetic field, the output is “High”. Sensing Direction of Magnetic Field Magnetic Flux

MultiDimension Technology Co., Ltd. Page 4 of 5 Web: www.dowaytech.com/en, Email: info@dowaytech.com MDT MMS201H No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R. China Ver. 1.1

Application Information

Package Information

SOT23-3 package drawing: The output of the MMS201H switches low (turns on) when a magnetic field parallel to the TMR sensor exceeds the operate point threshold, B OP. When the magnetic field is reduced below the release point, B RP, the device output goes high (turns off). The differences between the magnetic operate point and release point is the hysteresis BH of the device. It is strongly recommended that an external bypass capacitor be connected in close proximity to the device between the supply and ground to reduce noise. The typical value of the external capacitor is 0.1μF.

MultiDimension Technology Co., Ltd. Page 5 of 5 Web: www.dowaytech.com/en, Email: info@dowaytech.com MDT MMS201H No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, P.R. China Ver. 1.1 TO-92S package drawing: TMR Sensor Position Unit: mm The information provided herein by MultiDimension Technology Co. , Ltd. (hereinafter MultiDimension) is beli eved 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, r eliability, and functionality. MultiDimension does not assume any liability arising out of the applic ation 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.