MT8111A

MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 1 Product Description The MT811X family is produced by BCD technology with both high performance and high reliability. The Hall IC internally includes an on-chip Hall voltage generator, a voltage regulator for operation with supply voltage of 2.8V to 24V, a small-signal amplifier, Hall sensors with dynamic offset cancellation, a schmitt trigger and an open-drain output with overcurrent protection. It features temperature compensation technique to make the magnetic switching points stable over a wide temperature range. Other key features such as reverse supply voltage protection, output over-current protection and ESD level exceeding ±5.5KV (HBM) make the IC extremely robust and fault tolerant, which is important in demanding application environment such as automotive. Its extremely low operating supply voltage 2.8V also makes it possible to add external resistance in series with the supply pin for even greater protection against high voltage transients from the power supply. 4 Applications ￭ ￭ ￭ ￭ When the magnetic flux density (B) is greater than the operating point (BOP), the output turns on (Low). The output is held steady till the magnetic flux density (B) is less than the releasing point (BRP), at which point it turns off (High). 5. Pin Configuration and Functions 2 Features ￭ ￭ ￭ ￭ ￭ ￭ Out GND SOT-23 1 2 3 SOT-23 1 2 3 Flat TO-92 1 3 2 Description Power Output Ground Thin Outline Description MT8111A Flat TO-92, bulk packaging (1000pcs/bag) MT8111AT SOT-23, tape & reel (3000pcs/bag) MT8111ET SOT-23 (thin outline), tape & reel (3000pcs/bag) magntek.com.cn | Magnetic Tech Makes Magic Change SOT-23 Thin Outline Top-View SOT-23 Top-View 22 GND 33 OUT GND 11 3 3 Vcc 22 OUT 11 Vcc TO-92 Top-View 3 Product Overview of MT811X Part No. Open-Drain 按钮 BCD Technology Uni-polar Switch 2.8~24V Operating Vcc Range -40℃~150℃ Operating Temperature Package Option: Flat TO-92 SOT-23 SOT-23 (Thin Outline) Magnetic Sensitivity Option: BOP=110Gs, BRP=80Gs Open-Drain Output -27V Reversed Power Supply Protection Output Limiting Current Protection RoHS Compliant: (EU)2015/863 VCC 按钮 ￭ ￭ ￭ ￭ Home appliances Industrial Position Detection Proximity Switch Figure.1 1 OUT 3 GND 2 Vcc 1 Pin Configuration & Functions Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor Table of Contents 1 Product Description………….……………….……...…...…………………………………….…….………1 2 Features……………………………….……..……………………………………………………………….…….1 3 Product Overview of MT811X ..…………………………………………………………………………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 Package Material Information……………………………………………………………………………8 12.1 SOT-23 Package Information……………………………...………………………………………………8 12.2 SOT-23 Thin Outline Package Information………………………………………………………….9 12.3 Flat TO-92 Package Information……………………………………………………………………….10 13 Copy Rights and Disclaimer…………….……….………………………………………………………11 1 2 3 Originally Version 1.1 Version 1.2 Version 4 1.3 Version Reversion History magntek.com.cn| Magnetic Tech Makes Magic Change Update Magnetic Characteristics Update Electrical Specifications Update Copy Rights and Disclaimer Update the marking spec of SOT-23 & SOT23 (Thin Outline) 2 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 6 Definition of Switching Function Figure.2 & Figure.3 shows the device functionality and hysteresis Vcc Vcc North Figure.2 Bop South Brp Switching Function Uni-polar (North) North Bop South Switching Function Uni-polar (South) Figure.3 SOT-23 Brp Flat TO-92 / SOT-23 (Thin Outline) 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| Devices that have a lower magnetic threshold (VOUT=High) detect magnets at a farther distance. Higher thresholds (VOUT=Low) generally require a closer distance or larger magnet. 8 Feature Description S N N N S S SOT-23 Flat TO-92 Figure.4 Motion The MT811X device is sensitive to the magnetic field component that is perpendicular to the top of the package SOT-23 Thin Outline S N N N S S SOT-23 Flat TO-92 SOT-23 PCB PCB VOUT = Low VOUT= High Thin Outline Flux Direction Polarity magntek.com.cn| Magnetic Tech Makes Magic Change 3 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 9 Functional Block Diagram Vcc Reference Dynamic Offset Cancelation Regulator Limiting Current Protection Out ESD ESD Hall Plate ITA COMP Output Driver GND Figure.5 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 - 27 V VRCC Reverse Battery Voltage -27 - V VOUT Output Voltage - 27 V IOUT Continuous Output Current - 50 mA TA Operating Ambient Temperature -40 150 ℃ TS Storage Temperature -50 150 ℃ TJ Junction Temperature - 165 ℃ B Magnetic Flux Density magntek.com.cn| Magnetic Tech Makes Magic Change No Limit 4 Gs Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 10.2 Electrical Specifications At TA=-40~150 ℃, VCC=2.8V~24V (unless otherwise specified) Symbol Parameters Test Condition Min Typ Max Unit VCC Supply Voltage Operating 2.8 - 24 V ICC Supply Current BBOP, VOUT=VCC - 50 - mA VDSON Output Saturation Voltage IOUT=20mA, B>BOP - - 0.4 V IOFF Output Leakage Current VOUT=24V - - 10 uA TR Output Rise Time RL=1KOhm, CL=20pF - - 1.0 us TF Output Fall Time RL=1KOhm, CL=20pF - - 1.0 us TPO Power on Time dVcc/dt>5V/uS B>BOP(MAX) - - 25 us FC Chopping Frequency - 200 - KHz FS Sampling Frequency - 100 - KHz Thermal Resistance of SOT-23 - 301 - ℃/W Thermal Resistance of SOT-23 (Thin Outline) - 301 - ℃/W Thermal Resistance of TO-92 - 230 - ℃/W RTH 10.3 Magnetic Characteristics At VCC=2.8V~24V (unless otherwise specified) Part No. Symbol MT8111 Series Min Typ Max Unit BOP, TA =25℃ 60 110 160 Gs BRP, TA =25℃ 30 80 130 Gs BHYST, TA =25℃ 10 30 50 Gs 10.4 ESD Ratings Symbol VESD Reference Values Unit Human-body model (HBM) AEC-Q100-002 ±5500 V Charged-device model (CDM) AEC-Q100-011 ±1000 V magntek.com.cn| Magnetic Tech Makes Magic Change 5 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 10.5 Characteristic Performance Supply Current (mA) At VCC=5V 3.5 3 2.5 2 1.5 1 0.5 0 -40 Magnetic Field Intensity (Gs) Figure.6 Magnetic Field Intensity (Gs) 85 Temperature ℃ 125 150 Average Supply Current vs. Temperature 120 100 80 60 40 Bop 20 Brp 0 -40 Figure.7 25 0 25 85 Temperature ℃ 125 150 125 150 Magnetic Characteristics vs. Temperature (BOP & BRP) 60 50 40 30 20 10 0 -40 0 25 85 Temperature ℃ Figure.8 Magnetic Characteristics vs. Temperature (BHYST) magntek.com.cn| Magnetic Tech Makes Magic Change 6 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 10.6 Typical Output Waveform MT8111A as example B BOP BRP T V High Low Figure.9 T Digital Output vs. Magnetic Flux Density 11 Typical Application Circuit MT8111AT as example Note: Recommended value for RL is 1KOhms to 10KOhms C1=100nF Vcc 1 RL 按钮 Vcc OUT 3 GND GND 2 Out C2=1nF Figure.10 Typical Application Circuit magntek.com.cn| Magnetic Tech Makes Magic Change 7 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 12 Package Material Information （For Reference Only – Not for Tooling Use） 12.1 SOT-23 Package Information GND XXXX YW 按钮 Product ID 按钮 2 1 OUT Vcc Figure.11 YW 3 XXXX DateCode: Y: Year W: Week SOT-23 Chip Marking Spec Sensing Center Figure.12 SOT-23 Package Drawing Symbol Dimensions in Millimeters Dimensions in Inches Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950 TYP 0.037 TYP e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0︒ 8︒ 0︒ 8︒ x 1.460 TYP 0.057 TYP y 0.800 TYP 0.032 TYP z 0.600 TYP 0.024 TYP magntek.com.cn| Magnetic Tech Makes Magic Change 8 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 12.2 SOT-23 (Thin Outline) Package Information GND XXXX YW 3 Product ID 22 11 OUT Vcc Figure.13 YW 3 XXXX 按钮 DateCode: Y: Year W: Week SOT-23 (Thin Outline) Chip Marking Spec Sensing Center Figure.14 SOT-23 (Thin Outline) Package Drawing Symbol Dimensions in Millimeters Dimensions in Inches Min Max Min Max A 0.900 1.150 0.035 0.045 A1 0.000 0.100 0.000 0.004 A2 0.900 1.050 0.035 0.041 b 0.300 0.500 0.012 0.020 c 0.080 0.150 0.003 0.006 D 2.800 3.000 0.110 0.118 E 1.200 1.400 0.047 0.055 E1 2.250 2.550 0.089 0.100 e e1 0.950 TYP 1.800 L 0.037 TYP 2.000 0.071 0.550 REF 0.079 0.022 REF L1 0.300 0.500 0.012 0.020 θ 0︒ 8︒ 0︒ 8︒ x 1.460 TYP 0.057 TYP y 0.650 TYP 0.026 TYP z 0.500 TYP 0.020 TYP magntek.com.cn| Magnetic Tech Makes Magic Change 9 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 12.3 Flat TO-92 Package Information XXXX XXXX YWW Product ID YWW DateCode: week (01~55) DateCode: year (0~9) 3 OUT 2 GND 1 Vcc Figure.15 Flat TO-92 Chip Marking Spec Sensing Center Figure.16 Flat TO-92 Package Drawing Symbol Dimensions in Millimeters Dimensions in Inches Min Max Min Max A 1.420 1.620 0.056 0.064 A1 0.660 0.860 0.026 0.034 b 0.350 0.480 0.013 0.019 b1 0.400 0.510 0.016 0.020 c 0.330 0.510 0.013 0.020 D 3.900 4.100 0.154 0.161 D1 2.280 2.680 0.090 0.106 E 3.050 3.250 0.120 0.128 e 1.270 TYP 0.050 TYP e1 2.440 2.640 0.096 0.104 L 14.350 14.750 0.565 0.581 θ 45︒ TYP 45︒ TYP x 2.025 TYP 0.080 TYP y 1.545 TYP 0.061 TYP z 0.500 TYP 0.020 TYP magntek.com.cn| Magnetic Tech Makes Magic Change 10 Rev 1.3 MT811X Uni-polar, Hall-Effect Magnetic Position Sensor 13 Copy Rights and Disclaimer 1. This document may not be reproduced or duplicated, in any form, in whole or in part without prior written consent of MagnTek . Copyrights © 2019, MagnTek Incorporated. 2. MagnTek reserves the right to make changes to the information published in this document at anytime without notice. 3. MagnTek’s products are limited for use in normal commercial applications. MagnTek’s products are not to be used in any device or system, including but not limited to medical life support equipment and system. For the latest version of this document, please visit our website: www.magntek.com.cn magntek.com.cn| Magnetic Tech Makes Magic Change 11 Rev 1.3