www.magntek.com.cn| Magnetic Tech Makes Magic Change
Rev
Zero Latency Magnetic Angle Position Sensor IC
MT6825
Features and Benefits
￭ Based on advanced AMR Technology with
0~360° Full Range Angle Sensing
￭ 18 bit Core Resolution
￭ Maximum Rotation Speed 25,000 RPM
￭ Output Propagation Delay <2 us
￭ -40~125℃ Industry Operating Temperature
Range
￭ Independent Output Interface: ABZ, UVW，
PWM and SPI
￭ Incremental ABZ Resolution 1~4096 Pulses
per Revolution User Programmable
￭ UVW Output Resolution 1~16 Pole-Pairs
per Revolution User Programmable
￭ TSSOP-16 Package
0.1 2019.04
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General Description
The MagnTek rotary position sensor
MT6825 is an IC based on advanced AMR
technology. A rotating magnetic field in the
x-y sensor plane delivers two sinusoidal
output signals which indicating the angle
(α) between the sensor and the magnetic
field direction.
The sensor is only sensitive to the magnetic
field direction in x-y plane as the sensing
element output is specially designed to be
independent from the magnet field strength.
This allows the device to be less sensitive to
magnet variations, stray magnetic fields, air
gap changes and off-axis misalignment.
The incremental ABZ output mode is
available in this sensor series, making the
chip suitable to replace various optical
encoders. The maximum resolution is 16384
steps or 4096 pulses per revolution
A standard SPI (3-Wire or 4-Wrie) interface
allows a host microcontroller to read out
the 18-bit absolute angle position data
from MT6825. The absolute angle position
is also provided as a 12bit PWM output.
Applications
￭ Absolute Angle Position Sensor
￭ BLDC Motor Control
￭ Servo Motor Control
￭ Stepping Motor Control
￭ Optical Encoder Replacement
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