Product Overview
The Magntek MT6620 is a next-generation integrated Hall array sensor IC designed for high-precision off-axis magnetic linear position and angle detection. It leverages a 2mm fixed pitch Hall induction array to enable off-axis angle and displacement detection. The MT6620 offers a convenient client-side self-calibration mode, eliminating data interaction and automating compensation for non-linearities caused by imperfect magnets or installation deviations. It operates reliably within a wide temperature range of -40 to 125 and supports multiple output formats including incremental ABZ, incremental UVW, PWM absolute, and 3-wire SPI bus. Ideal for applications such as brushless DC motor control, linear motor control, robot joint control, and as a replacement for optical gratings.
Product Attributes
- Brand: Magntek
- Origin: China
- Model: MT6620GA
- Package Type: TSSOP-24
Technical Specifications
| Parameter | Description | Min | Typical | Max | Unit | |
|---|---|---|---|---|---|---|
| General Electrical Characteristics | ||||||
| VDD | Supply Voltage | 3.0 | 3.3~5.0 | 5.5 | V | |
| VTH_UV | Undervoltage Alarm Threshold Voltage | 2.45 | - | 2.65 | V | |
| VHYS_UV | Undervoltage Alarm Threshold Hysteresis | - | 100 | - | mV | |
| Idd | Quiescent Current | - | - | 25 | mA | |
| INL (Factory Calibrated) | Integral Non-Linearity | - | 0.5 | - | ||
| INL (Client Self-Calibrated) | Integral Non-Linearity | - | 0.2 | - | ||
| DNL | Differential Non-Linearity (ABZ 2500 pulse mode) | - | 0.05 | - | ||
| TN | Transient Noise (ABZ mode @ 25, 100Gs, BW=3) | - | 0.01 | - | rms | |
| TPwrUp | Power-Up Ready Time | - | 70 | - | ms | |
| TDelay | System Delay (Constant Speed) | - | 5 | - | us | |
| ABZ Output Parameters | ||||||
| ABRES | AB Resolution (Programmable) | 1 | - | 2,500 | pulse/pole pair | |
| ABFreq | A or B Frequency | - | - | 8 | MHz | |
| PWM Output Parameters | ||||||
| FPWM | PWM Frequency (Programmable) | 125 ~ 2,000 | - | - | Hz | |
| TRise | Rise Time (CL=1nF) | - | - | 1 | us | |
| TFall | Fall Time (CL=1nF) | - | - | 1 | us | |
| EEPROM Parameters | ||||||
| VDD | Supply Voltage for Erase/Read | 3.0 | - | 5.5 | V | |
| Endurance | Erase/Write Cycles | 100,000 | - | - | cycles | |
| Data Retention | Data Retention @ 150 | 10 | - | - | years | |
| External Magnetic Field Parameters | ||||||
| Dmag | Magnet Pole Pitch | 2.0 | - | - | mm | |
| Bpk | Input Magnetic Field Strength (Perpendicular to chip surface) | 5 | - | 50 | mT | |
| TCmag1 | Magnet Temperature Coefficient (NdFeB) | - | -0.12 | - | %/ | |
| TCmag2 | Magnet Temperature Coefficient (SmCo) | - | -0.035 | - | %/ | |
| Models | ||||||
| Model | Description | Unit | ||||
| MT6620GA-STD | TSSOP-24 package, Tube (38 pcs/tube) | - | ||||
| MT6620GA-STD-R | TSSOP-24 package, Reel (1,000 pcs/reel) | - | ||||
2409241026_Magn-Tek-MT6620GA-STD_C41413529.pdf
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