MT6343A

MT6343 Omni-polar, Low Power AMR Switch IC 1 Product Description The MT6343 family is produced with monolithic technology. Which built AMR sensor & ASIC on one chip. The IC internally includes a Wheatstone bridge with magnetic film, a voltage regulator for operating with supply voltage from 1.8V to 5.5V, a sleep/awake logic for low power consumption requirement, small signal amplifier and Schmitt trigger comparator with dynamic offset cancellation, and an output driver with push-pull output. When combined with a magnet, it becomes a noncontact switch with low power consumption, high sensitivity and high reliability. A horizontal magnetic field parallel to the electrode of the package can be detected by an arbitrary polarity. 4 Application The MT6343 family provides a variety of packages to customers: SOT-23 for surface mount and flat TO-92 for through-hole mount. All packages are RoHS compliant. ￭ ￭ ￭ ￭ ￭ ￭ ￭ 2 Features ￭ ￭ ￭ ￭ ￭ ￭ ￭ ￭ ￭ 5. Pin Configuration and Functions VCC Out GND SOT-23 1 2 3 Flat TO-92 1 3 2 Description Power Output Ground Push-Pull SOT-23 Top-View GND ￭ Monolithic Technology AMR (Anisotropic Magneto Resistance) Omni-polar Switch 1.8～5.5V Operating Vcc Range -40℃~125℃ Operating Temperature Package Option: SOT-23 Flat TO-92 Magnetic Sensitivity Option: BOP=±18Gs, BRP=±15Gs Pull-push Output Low Power Consumption: Average Supply Current =1.3uA (Typ) RoHS Compliant: (EU)2015/863 Home appliances, Industrial Position Detection Proximity Switch Smart Meter Speed Detection Handheld Device Consumer Device 3 按钮 3 Product Overview of MT6343 Flat TO-92, bulk packaging (1000pcs/bag) MT6343AT-1 SOT-23, tape & reel (3000pcs/bag) TO-92 Top-View Note: The chip mark of MT6343AT-1 is C431+Date Code, C431 represents the product name Figure.1 magntek.com.cn | Magnetic Tech Makes Magic Change OUT MT6343A Vcc Description 2 1 Part No. 1 OUT 3 GND 2 Vcc 1 Pin Configuration & Functions Rev 3.1 MT6343 Omni-polar, Low Power AMR Switch IC Table of Contents 1 Production Description………….……………….……...…………………………………….…….………1 2 Features……………………………….……..……………………………………………………………….…….1 3 Product Overview of MT6343 ..…………………………………………………………………………1 4 Applications……………………………………………………………………………………………………….1 5 Pin Configuration and Functions…………………………………………………….………………….1 6 Definition of Switching Function……………………………………………………………………….3 7 Function Description…......…………………………………………………………………………………..3 8 Feature Description……………………………………………………………………………………………3 9 Functional Block Diagram…………………………………………………………………………………..4 10 Electrical and Magnetic Characteristics………………………………………………………………4 10.1 Absolute Maximum Ratings……………………………………………………………………………….4 10.2 Electrical Specifications………………………………….………………………………………………..5 10.3 Magnetic Characteristics……………………………………………………………………………………5 10.4 ESD Ratings………………………………………………………………………………………………………..5 10.5 Characteristic Performance………………………………………………………………….…………….6 10.6 Typical Output Waveform…………………………………………………………………………………..7 11 Typical Application Circuit………………………………………………………………………………….7 12 Power on Output Waveform………………………………………………………………………………8 13 Package Material Information……………………………………………………………………………9 13.1 SOT-23 Package Information……………………………...………………………………………………9 13.2 Flat TO-92 Package Information……………..………………………………………………………10 14 1 Copy Rights and Disclaimer……………………………………………………………………………..11 3.1Version Reversion History Update format Update the marking spec of SOT-23 magntek.com.cn | Magnetic Tech Makes Magic Change 2 Rev 3.1 MT6343 Omni-polar, Low Power AMR Switch IC 6 Definition of Switching Function Figure.2 shows the device functionality and hysteresis Vcc North Figure.2 BOP N BRP N BRP S South BOP S Omni-polar Switching Function 7 Function Description BOP: Operating Point, Magnetic flux density applied on the branded side of the package which turns the output driver ON (VOUT=Low) BRP: Releasing Point, Magnetic flux density applied on the branded side of the package which turns the output driver OFF (VOUT=High) BHYST: Hysteresis Window, |BOP - BRP| 8 Feature Description The MT6343 device is sensitive to the magnetic field that is parallel to the package Flat TO-92 Motion 25° 3 N or S 按钮 1 2 Vcc OUT 25° 3 3 OUT magntek.com.cn | Magnetic Tech Makes Magic Change 2 GND 1 Vcc Flux Direction Polarity 25° Top View 25° Figure.3 N or S S or N Motion GND S or N SOT-23 Rev 3.1 MT6343 Omni-polar, Low Power AMR Switch IC 9 Functional Block Diagram Vcc Sleep/Awake Logic Regulator Dynamic Offset Cancellation Out ESD AMR AMP COMP Output Driver GND Figure.4 Functional Block Diagram 10 Electrical and Magnetic Characteristics 10.1 Absolute Maximum Ratings Absolute maximum ratings are limited values to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating conditions for an extended period of time may affect device reliability. Symbol Parameters Min Max Units VCC Supply Voltage - 7 V VRCC Reverse Battery Voltage -0.5 - V VOUT Output Voltage -0.5 7 V IOUT Continuous Output Current - 10 mA TA Operating Ambient Temperature -40 125 ℃ TS Storage Temperature -50 150 ℃ TJ Junction Temperature - 165 ℃ B Magnetic Flux Density magntek.com.cn | Magnetic Tech Makes Magic Change 3000 4 Gs Rev 3.1 MT6343 Omni-polar, Low Power AMR Switch IC 10.2 Electrical Specifications At TA=-40~125℃, VCC=1.8V~5.5V (unless otherwise specified) Symbol Parameters Test Condition Min Typ Max Unit VCC Supply Voltage Operating 1.8 - 5.5 V ICC Supply Current VCC=3.6V - 1.3 2.0 uA VOL Output Low Voltage Vcc=3.6V, IOUT=15mA, ∣B∣>∣BOP∣ - - 0.2 V VOH Output High Voltage Vcc=3.6V, IOUT=15mA, ∣B∣BOP(MAX) - - 100 us FSW Switching Frequency VCC=3.6V - 20 - Hz TAW Awake Time VCC=3.6V - 12 - Us TSL Sleep Time VCC=3.6V - 50 - ms D.C. Duty Cycle VCC=3.6V - 0.02 - % Thermal Resistance of SOT-23 - 301 - ℃/W Thermal Resistance of Flat TO-92 - 230 - ℃/W RTH 10.3 Magnetic Characteristics At VCC=1.8V~5.5V (unless otherwise specified) Part No. Symbol MT6343 Series Min Typ Max Unit BOP, TA =25℃ - ±18 - Gs BRP, TA =25℃ - ±15 - Gs BHYST, TA =25℃ - 3 - Gs 10.4 ESD Ratings Symbol VESD Reference Values Unit Human-body model (HBM) AEC-Q100-002 ±8000 V Charged-device model (CDM) AEC-Q100-011 ±1000 V magntek.com.cn | Magnetic Tech Makes Magic Change 5 Rev 3.1 MT6343 Omni-polar, Low Power AMR Switch IC 10.5 Characteristic Performance Supply Current (uA) At VCC=3.6V, B∣BOP∣ ∣B∣