MT8571AT

MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 1 Product Description The MT857X 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 3.0V to 24V, temperature compensation circuitry, small-signal amplifier, Hall IC with dynamic offset cancellation system, Schmitt trigger and 10K internal pull-up resistor. It also includes an clamp diode at output and reversed power supply protection enhances the robustness of Hall IC. The product responds to either North pole or South pole magnetic fields. The output will be turned on (Low) when the magnetic flux density (B) is larger than the operating point (BOP), and be turned off (High) when the magnetic flux density (B) is lower than the releasing point (BRP). The MT857X 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 ￭ ￭ ￭ ￭ ￭ ￭ ￭ ￭ ￭ BCD Technology Omni-polar Switch 3.0~24V Operating Vcc Range -40℃~125℃ Operating Temperature Package Option: Flat TO-92 SOT-23 Magnetic Sensitivity Option: MT8571 (BOP=±32Gs, BRP=±27Gs) MT8572 (BOP=±80Gs, BRP=±60Gs) MT8573 (BOP=±60Gs, BRP=±45Gs) Internal 10K pull-up resistor -16V Reversed Power Supply Protection Output Limiting Current Protection RoHS Compliant: (EU)2015/863 4 Applications ￭ ￭ ￭ ￭ Home appliances, Industrial Position Detection Magnetic Encoder Proximity Switch 5. Pin Configuration and Functions VCC Out GND SOT-23 1 2 3 Flat TO-92 1 3 2 Description Power Internal Pull-up Resistor Ground 3 Product Overview of MT857X Part No. Description MT857XA Flat TO-92, bulk packaging (1000pcs/bag) MT857XAT SOT-23, tape & reel (3000pcs/bag) Figure.1 magntek.com.cn | Magnetic Tech Makes Magic Change 1 Pin Configuration & Functions Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC Table of Contents 1 Product Description………...…….……………….……...…………………………………….…….………1 2 Features……………………………….……..……………………………………………………………….…….1 3 Product Overview of MT857X ..…………………………………………………………………………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 Flat TO-92 Package Information………………………………………………………………………9 13 Copy Rights and Disclaimer……………………………………………………………………………..10 1 2 3 4 5 Originally Version 1.1 Version 1.2 Version 1.3 Version 1.4 Version 6 7 1.5 Version 1.6 Version Reversion History Update Pin Configuration and Functions for SOT-23 Update Copy Rights and Disclaimer Update Electrical Specifications Update MT8572 & MT8573 Series Update the marking spec of SOT-23 Update the Magnetic Spec of MT8571 Update the Magnetic Spec of MT8573 magntek.com.cn | Magnetic Tech Makes Magic Change 2 Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect 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 BOP S South 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| 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 The MT857X device is sensitive to the magnetic field component that is perpendicular to the top of the package or or or S N S N N S N S SOT-23 Figure.3 Motion or S N S N N S N S Flat TO-92 SOT-23 Flat TO-92 PCB PCB VOUT = Low VOUT= High Flux Direction Polarity magntek.com.cn | Magnetic Tech Makes Magic Change 3 Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 9 Functional Block Diagram Vcc Dynamic Offset Cancelation Regulator Limiting Current Protection 10KΩ Reference ESD Out Hall Plate ITA COMP Output Driver ESD 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 - 30 V VRCC Reverse Battery Voltage -16 - V VOUT Output Voltage - 30 V IOUT Continuous Output Current - 55 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 No Limit 4 Gs Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 10.2 Electrical Specifications At TA=-40~150 ℃, Vcc=3.0V~24V (unless otherwise specified) Symbol Parameters Test Condition Min Typ Max Unit VCC Supply Voltage Operating 3.0 - 24 V ICC Supply Current ∣B∣∣BOP∣, VOUT=Vcc - 50 - mA VDSON Output Saturation Voltage IOUT=20mA, ∣B∣>∣BOP∣ - - 0.4 V IOFF Output Leakage Current VOUT=24V, ∣B∣5V/uS ∣B∣>∣BOP∣ (MAX) - - 15 us FC Chopping Frequency - 400 - KHz FS Sampling Frequency - 25 - KHz Thermal Resistance of SOT-23 - 301 - ℃/W Thermal Resistance of TO-92 - 230 - ℃/W RTH 10.3 Magnetic Characteristics At VCC=3.0V~24V (unless otherwise specified) Part No. Symbol Min Typ Max Unit BOP, TA =25℃ 23 ±32 41 Gs MT8571 Series BRP, TA =25℃ 18 ±27 36 Gs - 5 - Gs BOP, TA =25℃ ±55 ±80 ±105 Gs MT8572 Series BRP, TA =25℃ ±35 ±60 ±85 Gs 10 20 30 Gs BOP, TA =25℃ ±35 ±60 ±85 Gs MT8573 Series BRP, TA =25℃ ±20 ±45 ±70 Gs 5 15 25 Gs BHYST, TA =25℃ BHYST, TA =25℃ BHYST, TA =25℃ 10.4 ESD Ratings Symbol VESD Reference Level Unit Human-body model (HBM) AEC-Q100-002 Class H2 Grade Charged-device model (CDM) AEC-Q100-011 Class C3 Grade magntek.com.cn | Magnetic Tech Makes Magic Change 5 Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 10.5 Characteristic Performance MT8571 At VCC=5V Supply Current (mA) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -40 25 0 85 125 Temperature ℃ Supply Current vs. Temperature Bop S Brp S 5 Bop N Brp N -5 -15 -40 0 25 85 125 -25 -35 Temperature ℃ MT8571 Magnetic Field Intensity (Gs) Figure.6 10 8 6 4 2 0 -2 -4 -6 -8 -10 -40 MT8571 Figure.7 100 80 60 40 20 0 -20 -40 -60 -80 -100 80 -40 Bop S Brp S Bop N Brp N 0 25 85 125 Magnetic Field Intensity (Gs) 15 Magnetic Field Intensity (Gs) 25 60 40 20 0 -20 -40 Bop S Brp S Bop N Brp N 0 25 85 125 -40 -60 -80 Temperature ℃ Temperature ℃ MT8573 MT8572 Magnetic Characteristics vs. Temperature (BOP & BRP) 0 Bhyst S 25 85 125 Bhyst N Temperature ℃ Magnetic Field Intensity (Gs) Magnetic Field Intensity (Gs) 35 25 20 15 10 5 0 -5 -10 -15 -20 -25 20 Bhyst S -40 0 Bhyst N 25 85 Temperature ℃ 125 Magnetic Field Intensity (Gs) Figure.5 15 10 5 Bhyst S 0 -5 -40 0 Bhyst N 25 85 -10 -15 -20 Temperature ℃ MT8573 MT8572 Magnetic Characteristics vs. Temperature (BHYST) magntek.com.cn | Magnetic Tech Makes Magic Change 6 Rev 1.6 125 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 10.6 Typical Output Waveform MT8571A as example B BOP S BRP S T BRP N BOP N V High Low Figure.8 T Digital Output vs. Magnetic Flux Density 11 Typical Application Circuit MT8571AT as example C1=100nF Vcc 1 按钮 Vcc OUT 3 GND GND 2 Out C2=1nF Figure.9 Typical Application Circuit magntek.com.cn | Magnetic Tech Makes Magic Change 7 Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 12 Package Material Information （For Reference Only – Not for Tooling Use） 12.1 SOT-23 Package Information 3 XXXX 按钮 Product ID 按钮 2 1 OUT Vcc Figure.10 DateCode: Y: Year W: Week YW GND XXXX YW SOT-23 Chip Marking Spec Sensing Center Figure.11 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 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 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.14 Flat TO-92 Chip Marking Spec Sensing Center Figure.15 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 9 Rev 1.6 MT857X Omni-polar, High Voltage & Low Power Consumption Hall-Effect Switch IC 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 10 Rev 1..4