MV300 MagVectorTM MV300 3D Magnetic Sensor TSOT23

MV300 MagVectorTM MV300 3D Magnetic Sensor TSOT23

The MV300 is a magnetic sensor that detects the direction and strength of the 3D magnetic field (BX, BY, and BZ).

Key Specifications

Features

• 3D (X, Y, and Z) Magnetic Sensing
• ±150mT Magnetic Field Range
• 12-Bit Data Length
• 0.2mT RMS Noise (X, Y) and 0.1mT RMS Noise (Z) at 20kHz Refresh Rate
• On-Chip Temperature Sensor
• 40µs Conversion Time per Channel
• Data Updates upon User Request in Host- Controlled Mode
• Selectable Update Rate in Auto Sampling Cycle (ASC) Mode
• I2C Interface or Serial Peripheral Interface (SPI) for Digital Readout and Chip Configuration
• 3.3V Supply, 2.5mA Current Consumption in Measuring State

Typical Application Circuit

Applications

• DC or AC Magnetic Field Detection
• Magnetic Field Mapping
• 3D Magnetic Joysticks

Design Notes

• Mechanical tolerance between the magnet and the sensing element translates directly into angle error; budget it before choosing the resolution.
• Match the output interface (SPI, ABZ, PWM or analog) to the MCU timing, including the latency the control loop can tolerate.
• Offset and sensitivity drift over temperature are systematic — a single-point calibration at room temperature will not hold over the operating range.
• Differential or digital outputs survive electrically noisy motor environments far better than single-ended analog ones.

Common Questions