Angular Sensor Applications Eknobs Power Tools Appliances Industrial

Angular Sensor Applications E-knobs Power Tools Appliances Industrial Automation Machining Interface Devices Servo Motors Gimbals Robotics Encoders Drones Automotive Medical Elevator

General Angular Sensors Overview Optical Encoder Magnetic Encoder Resolver Generator VS. Potentiometer ü Small size & Easy design ü High immunity to dust/oil/optical/ vibration ü Medium/high precision ü Low cost ü Extremely long lifetime ü Side-of-shaft ability

Advantages of MPS Magnetic Angular Sensors Ø Side-Shaft Mounting Possible Ø High Sampling Frequency Up to 1 MHz Ø Ultra-short Latency 3~10µs Ø Smallest Package QFN 2 x 2/3 x 3 Ø Ultra-low Power Consumption 2 u. A~10 m. A

MPS Magnetic Angular Sensors Flexible mechanism design with the same device!~ ü End-of-shaft or side-shaft mounting ü Cylinder magnet or ring magnet ü 1 pole-pair magnet or Multi-pp magnet End-of-shaft Side-shaft

Principle of Traditional Solutions • Latency • Non-linearity • Latency • MCU loading & Cost

Principle of MPS Angular Sensors MPS unique solution: Instead of using ADC+arc-tan method, we measure the angle by phase detection. B α t Phase Detect α

Principle of MPS Angular Sensors i V V B

Principle of MPS Angular Sensors a a

Principle of MPS Angular Sensors a COMP HALL REF COMP REF PWM

Interface of MPS Angular Sensors MA(Q)xxx

MA 7 xx Diagram and Interface SPI & SSI 8 -14 bit absolute output Read/Write register PWM Abs. Output 12 -14 bit resolution ABZ Incremental Output 10 -12 bit resolution Prog. 1 -1024 pulses per turn Prog. 4 -4096 edges per turn Field Strength Detection Programmable high/low thresholds

Key Features of MA 7 xx Series MA 7 xx Family for Encoders Features by Part MA 702 MA 710 MA 732 MA 780 12 12 14 9~14 8~12 Fast Medium Fast 30 15 40 40 30 Zero setting ✔ ✔ ✔ Side-shaft compensation ✔ ✔ ✔ 8~12 Effective angle resolution bit Dynamic response Minimum magnetic field m. T Absolute angle on SPI bit 12 12 14 9~14 Absolute angle on SSI bit 12 12 14 9~14 ABZ resolution PPR 1~256 1~1024 Adjustable Z pulse ✔ ✔ PWM output ✔ ✔ 12 12 14 14 ✔ ✔ PWM resolution Magnetic field detection bit ✔

Key Features of MA 1 xx/MA 3 xx Series MA 1 xx & MA 3 xx Family for Motor Applications Features by Part 1 Absolute angle on SPI Dynamic response Minimum magnetic field Zero setting bit m. T Side-shaft compensation ABZ resolution Adjustable Z pulse UVW output UVW pp per rev. Differential UVW Magnetic field monitoring MA 102 MA 310 MA 330 8 Fast 30 ✔ 12 Medium 15 ✔ 9~14 Fast 30 ✔ ✔ ✔ 1~256 1~1024 ✔ ✔ 1~8 ✔ ✔ 1 ~8 ✔ ✔ ✔ PPR ✔ 1~8 ✔ ✔

Key Features of MA 8 xx Series MA 8 xx Family for Turning Knobs Features by Part MA 800 MA 820 MA 850 Effective angle resolution bit 8 8 8 Magnetic field range m. T 30~150 30 ~150 Zero setting ✔ ✔ ✔ SPI register configuration ✔ ✔ ✔ Absolute angle on SPI bit 8 8 8 Absolute angle on SSI bit 8 -- -- ABZ incremental ABZ resolution ✔ PPR 1. . 64 PWM output PWM resolution Magnetic field detection ✔ bit 8 ✔ ✔ ✔

Key Features of MAQ 4 xx Series for Automotive MAQ 4 xx Family for Automotive Features by Part MAQ 430 12 Fast 30 ✔ ✔ Effective angle resolution Dynamic response Minimum magnetic field Zero setting Side-shaft compensation m. T 12 Fast 30 ✔ ✔ Absolute angle on SPI bit 12 12 Absolute angle on SSI bit 12 12 ABZ resolution PPR 1~256 ✔ bit ✔ 12 Adjustable Z pulse PWM resolution UVW pp per rev. Magnetic field detection bit MAQ 470 ✔ 1~8 ✔

Application Example: MA 730 for Gimbals MA 730 Sensor output without BCT trimming Sensor output with BCT trimming

Application Example: MA 730 for Side-shaft Gimbals Simulation results of magnetic field: Bmin (m. T) Bmax (m. T) k 34 90 2. 6 MA 730 BCT register setting: BCT=235

Application Example: MA 3 xx using Multi-pole Magnet Radial magnet Results with 5 -pp magnet: MA 3 xx

Application Example: MA 102 for 3 Hall Replacement Benefits: 3 Hall Switches MA 102 Ø Ø Easy for design Smaller size Higher accuracy Better consistency

Application Example : MA 102 for Direct Rotor Sensing

Application Example: MA 302 for Mini-motor OD=6 mm MA 302 4 mm magnet

Application Example: MA 850 for E-Knobs Alum housing MA 850 encode r 4 mm diameter magnet • MA 850 for potentiometer/low-end rotate encoder replacement • Low cost, longer life, better performance, higher reliability

Design Assistant: Demo Board and GUI Rotary Knob Demo kit & GUI Test boards for direct embedded via SPI

Design Assistant: Off-line Magnet Design Tool Magnetic field evaluation tool for end-of-shaft applications Higher than Bmin

Design Assistant: MPS On-line Magnet Simulation App https: //sensors. monolithicpower. com/ End-of-shaft Side-shaft Orthogonal Side-shaft

Design Assistant: MPS On-line Magnet Simulation App https: //sensors. monolithicpower. com/

Thanks~ http: //www. monolithicpower. com/