MT6826S: 15-Bit High-Resolution, High-Accuracy Magnetic Angle Encoder IC
Product Overview
The MT6826S is a next-generation high-speed, high-accuracy angle encoder IC from Magntek, leveraging advanced Anisotropic Magnetoresistance (AMR) technology. It offers 0-360 absolute angle position detection with 15-bit resolution and high precision. The IC integrates two pairs of AMR Wheatstone bridges and a dedicated high-performance signal processing circuit. It supports multiple output modes including absolute SPI, PWM, and incremental ABZ/UVW, making it suitable for a wide range of applications such as absolute angle position sensing, brushless DC motor control, servo motor control, and closed-loop stepper motor control. Its key advantage lies in the client-side automatic non-linear calibration mode, which compensates for magnetic and installation deviations, achieving an Integral Non-Linearity (INL) of <0.07.
Product Attributes
- Brand: Magntek
- Technology: Anisotropic Magnetoresistance (AMR)
- Certifications: AEC-Q100-004, AEC-Q100-002, AEC-Q100-011 (for specific tests)
Technical Specifications
| Feature | Specification | Details |
|---|---|---|
| Resolution | 15-bit Absolute Angle Output | SPI interface readable |
| Maximum Speed | 120,000 RPM | |
| Angle Output Delay | 2 s - 10 s | |
| Integral Non-Linearity (INL) | < 0.07 | With client-side automatic non-linear calibration |
| Operating Temperature | -40C to 125C | |
| Supported Output Modes | Incremental ABZ, Incremental UVW, PWM Absolute, 4-Wire SPI | |
| Incremental ABZ Output | 1 to 4,096 pulses/revolution | Customer programmable resolution |
| Incremental UVW Output | 1 to 16 pole pairs/revolution | Customer programmable pole pairs |
| EEPROM | Built-in 3.3V ~ 5.0V programmable | |
| Power Supply Voltage (Operating) | 3.0V to 5.5V | |
| Magnetic Field Strength (Operating) | 30 to 1,000 mT | Measured at chip surface |
| Chip Operating Current | 15 mA (typ.) | |
| System Power-Up Ready Time | 3 ms (typ.) | Power-up < 100 s |
| System Delay | 10 s (typ.) | Under constant velocity |
| Step Response Time | 100 s (typ.) | Register 'BW'=5 |
| PWM Frequency | 497 Hz or 994 Hz (programmable) | |
| ABZ Output Frequency | Up to 2.048 MHz | |
| EEPROM Endurance | 100,000 cycles | |
| EEPROM Data Retention | 10 years @ 150C | |
| SPI Clock Speed | Up to 16 MHz | |
| Magnet Diameter (Recommended) | 10 mm | For 1-pair pole radial magnet |
| Magnet Thickness (Recommended) | 2.5 mm | |
| Air Gap (AG) | 1.0 mm to 3.0 mm | Between chip surface and magnet |
| Eccentricity (DISP) | - to 0.3 mm | Deviation of magnet center from chip sensing center |
| Package Types | TSSOP-16, QFN4x4-16L | |
| Model: MT6826SGT-STD-R | TSSOP-16, Tape & Reel | AB=1 pulse/rev, Z=1 LSB; PWM=994 Hz; CCW angle increases (Basic model) |
| Model: MT6826SGT-AKD-R | TSSOP-16, Tape & Reel | AB=1,000 pulses/rev, Z=4 LSB; PWM=994 Hz; CCW angle increases |
| Model: MT6826SJT-STD | QFN4x4-16L, Tape & Reel | AB=1 pulse/rev, Z=1 LSB; PWM=994 Hz; CCW angle increases (Basic model) |
2504101957_Magn-Tek-MT6826SGT-STD_C27636731.pdf
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