Overview
The DRV5055A2QLPG is a linear Hall effect sensor produced by Texas Instruments. This device responds proportionally to magnetic flux density, making it suitable for accurate position sensing in a wide range of applications. It operates from either 3.3-V or 5-V power supplies and provides an analog output that changes linearly with the applied magnetic flux density. The sensor features a ratiometric architecture, which helps eliminate errors due to VCC tolerance when used with an external analog-to-digital converter (ADC) that uses the same VCC for its reference. Additionally, the device includes magnet temperature compensation to ensure linear performance across a wide temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Texas Instruments | Type | Ratiometric Linear Hall Effect Magnetic Sensor |
| Operating Supply Current | 6 mA | Maximum Output Current | 1 mA |
| Operating Supply Voltage | 3.3 V to 5.5 V | Sensing Bandwidth | 20 kHz |
| Package Type | TO-92 (3 pins) | Operating Temperature Range | –40°C to 125°C |
| Magnetic Sensitivity Options (at VCC= 5 V) | A1/Z1: 100 mV/mT, ±21-mT Range; A2/Z2: 50 mV/mT, ±42-mT Range; A3/Z3: 25 mV/mT, ±85-mT Range; A4/Z4: 12.5 mV/mT, ±169-mT Range | Propagation Delay Time | 10 µs |
| Input-Referred RMS Noise Density (VCC= 5 V) | 130 nT/√Hz | Output-Referred Noise | 12 mVPP (for DRV5055A1/Z1) |
Key Features
- Ratiometric Linear Hall Effect Magnetic Sensor
- Operates from 3.3-V and 5-V power supplies
- Analog output with VCC/2 quiescent offset
- Four magnetic sensitivity options to enable maximal output voltage swing based on the required sensing range
- Fast 20-kHz sensing bandwidth
- Low-noise output with ±1-mA drive
- Compensation for magnet temperature drift (for A1/A2/A3/A4 versions) and no temperature compensation options (for Z1/Z2/Z3/Z4 versions)
- Standard industry packages: Surface-Mount SOT-23 and Through-Hole TO-92
Applications
- Magnetic field detection in industrial automation systems
- Position sensing in robotics and mechatronics
- Proximity detection in consumer electronics
- Fluid flow rate measurement
- Medical devices
- Absolute angle encoding
- Current sensing
- Automotive anti-lock braking systems
Q & A
- What is the operating voltage range of the DRV5055A2QLPG? The DRV5055A2QLPG operates from 3.3-V to 5.5-V power supplies.
- What are the magnetic sensitivity options for the DRV5055A2QLPG? The device offers four sensitivity options: A1/Z1: 100 mV/mT, ±21-mT Range; A2/Z2: 50 mV/mT, ±42-mT Range; A3/Z3: 25 mV/mT, ±85-mT Range; A4/Z4: 12.5 mV/mT, ±169-mT Range.
- What is the sensing bandwidth of the DRV5055A2QLPG? The sensing bandwidth is 20 kHz.
- What is the operating temperature range of the DRV5055A2QLPG? The operating temperature range is –40°C to 125°C.
- Does the DRV5055A2QLPG have temperature compensation for magnet drift? Yes, the device features magnet temperature compensation for A1/A2/A3/A4 versions, and options without temperature compensation are also available (Z1/Z2/Z3/Z4 versions).
- What are the common applications of the DRV5055A2QLPG? Common applications include magnetic field detection in industrial automation, position sensing in robotics and mechatronics, proximity detection in consumer electronics, and more.
- What package types are available for the DRV5055A2QLPG? The device is available in Surface-Mount SOT-23 and Through-Hole TO-92 packages.
- How does the ratiometric architecture of the DRV5055A2QLPG benefit its operation? The ratiometric architecture helps eliminate errors due to VCC tolerance when used with an external ADC that uses the same VCC for its reference.
- What is the propagation delay time of the DRV5055A2QLPG? The propagation delay time is 10 µs.
- Is the DRV5055A2QLPG suitable for high-volume production? Yes, it is available in tape and reel packaging, facilitating efficient assembly for high-volume production.
- What is the maximum output current of the DRV5055A2QLPG? The maximum output current is 1 mA.
