Overview
The Honeywell HMC5883L-TR is a surface-mount, multi-chip module designed for low-field magnetic sensing. It features a digital interface and is particularly suited for applications such as low-cost compassing and magnetometry. The module includes high-resolution HMC118X series magneto-resistive sensors and an application-specific integrated circuit (ASIC) that handles tasks like signal amplification, automatic degaussing, and offset cancellation. This combination enables the HMC5883L to provide accurate compass headings with a precision of 1° to 2°. The device communicates via an I2C serial bus, making it easy to integrate into various systems.
Key Specifications
| Characteristics | Min | Max | Units | |
|---|---|---|---|---|
| Supply Voltage VDD | 2.16 | 1.71 | 3.6 | Volts |
| Supply Voltage VDDIO | 1.8 | - | 3.6 | Volts |
| Average Current Draw (Idle Mode) | - | - | 0.2*VDDIO | Volts |
| Average Current Draw (Measurement Mode) | - | - | 0.8*VDDIO | Volts |
| Magnetic Field Range | -8 | - | 8 | Gauss |
| Resolution | - | - | 0.005G | Gauss |
| Output Rate | - | - | 160 Hz | Hz |
| Operating Temperature | -30 | - | 85 | °C |
| Storage Temperature | -40 | - | 125 | °C |
| Package Size | 2.85 x 3.00 x 0.8 | 3.00 x 3.00 x 0.9 | 3.15 x 3.15 x 1.0 | mm |
Key Features
- Three-axis magnetoresistive sensors and ASIC in a 3.0x3.0x0.9mm LCC surface mount package, ideal for highly integrated products.
- Utilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology, providing precision in-axis sensitivity and linearity.
- Sensors can be used in strong magnetic field environments with 1° to 2° compass heading accuracy.
- Software and algorithm support available, including libraries for compassing heading, hard iron, soft iron, and auto calibration.
- Fast 160 Hz maximum output rate, enabling pedestrian navigation and location-based services (LBS) applications.
- Easy to assemble and compatible with high-speed surface mount technology (SMT) assembly.
- RoHS compliant and supports a wide operating temperature range from -30°C to 85°C.
Applications
- Mobile phones and netbooks for navigation and orientation.
- Consumer electronics, such as personal navigation devices and GPS systems.
- Auto navigation systems and automotive components, enhancing directional accuracy and safety features.
- Robots and unmanned aerial vehicles (UAVs) for precise location and orientation.
- Scientific instruments and outdoor navigation tools where geomagnetic field detection is crucial.
Q & A
- What is the primary function of the HMC5883L?
The HMC5883L is a 3-axis digital compass IC designed for low-field magnetic sensing and magnetometry, providing accurate compass headings and magnetic field measurements.
- What technology does the HMC5883L use?
The HMC5883L utilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology, which offers precision in-axis sensitivity and linearity.
- What is the magnetic field range of the HMC5883L?
The HMC5883L measures magnetic fields from -8 to +8 gauss with a resolution of 0.005 gauss.
- What is the maximum output rate of the HMC5883L?
The HMC5883L can output data at a maximum rate of 160 Hz.
- What communication protocol does the HMC5883L use?
The HMC5883L uses the I2C serial bus for communication.
- What are the power supply requirements for the HMC5883L?
The HMC5883L operates with a supply voltage of 2.16V to 3.6V for VDD and 1.8V to 3.6V for VDDIO.
- What is the operating temperature range of the HMC5883L?
The HMC5883L operates within a temperature range of -30°C to 85°C.
- Is the HMC5883L RoHS compliant?
- What are some common applications of the HMC5883L?
- How does the HMC5883L handle strong magnetic fields?
