Product Overview
The MagnTek MT6816 is a zero-latency magnetic angle position sensor IC utilizing advanced AMR technology for 0-360 full-range angle sensing. It offers high resolution, a maximum rotation speed of 25,000 RPM, and a propagation delay of less than 2 s. Designed for industrial operating temperatures (-40 to 125C), the MT6816 supports multiple output interfaces including ABZ, UVW, PWM, and SPI. Its robustness against magnet variations, stray fields, air gap changes, and off-axis misalignment makes it an ideal replacement for optical encoders in applications such as BLDC motor control, servo motor control, stepping motor control, and general absolute angle position sensing.
Product Attributes
- Brand: MagnTek
- Technology: Advanced AMR (Anisotropic Magnetoresistance)
- Certifications: AECQ-100 Qualified
- Package Type: SOP-8
Technical Specifications
| Specification | Value | Unit | Notes |
|---|---|---|---|
| Core Resolution | 14 | - | - |
| Maximum Rotation Speed | 25,000 | RPM | - |
| Output Propagation Delay | < 2 | s | - |
| Operating Temperature Range | -40 to 125 | - | |
| Incremental ABZ Resolution | 1 to 1024 | Pulses per Revolution | User Programmable |
| UVW Output Resolution | 1 to 16 | Pole-Pairs per Revolution | User Programmable |
| VDD Supply Voltage | 3.0 to 5.5 | V | - |
| HVPP Supply Voltage (if used) | 7.0 to 7.2 | V | - |
| Supply Current (Idd) | 5 (Typ.) | mA | - |
| Integral Non-Linearity (INL) | 0.75 (Typ.), 1.5 (Max.) | - | |
| Differential Non-Linearity (DNL) (ABZ Mode) | 0.01 | @1000 PPR | |
| Transition Noise (TN) (ABZ Mode) | 0.01 | rms | 25, HYST=4 |
| Hysteresis (Hyst) (ABZ Mode) | 0.022 | 1 LSB = 360/214 | |
| Power-Up Time (TPwrUp) | 16 | ms | VDD Ramp<10s |
| PWM Frequency | 971.1 / 485.6 | Hz | Programmable |
| PWM Clock Period Duration | 250 (Typ.) | ns | Programmable to 500ns |
| SPI Mode | 3-Wire or 4-Wire | - | Configurable via Register |
| SPI Clock Period (TSCK) | 64 | ns | - |
| Magnetic Flux Density Range | 30 to 1,000 | mT | - |
| Recommended Air Gap (AG) | - to 2.0 (Typ.), 3.0 (Max.) | mm | - |
| Recommended Magnet Diameter (Dmag) | 10 | mm | - |
| Recommended Magnet Thickness (Tmag) | 2.5 | mm | - |
| Off-Axis Misalignment (DISP) | - to 0.3 | mm | - |
| Package Dimensions (SOP-8) | Refer to Section 11 | - | - |
2410010403_Magn-Tek-MT6816CT-STD-R_C2991083.pdf
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