Overview
The DRV5055A1QLPGM, produced by Texas Instruments, is a ratiometric linear Hall effect sensor designed for accurate position sensing and magnetic field detection. This device operates from either 3.3-V or 5-V power supplies and provides an analog output that is proportional to the applied magnetic flux density. The DRV5055A1QLPGM is available in both surface-mount SOT-23 and through-hole TO-92 packages, offering flexibility in design and implementation. It features a wide operating temperature range of -40°C to 125°C, making it suitable for various industrial and consumer applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC (Power-supply voltage) | 3 | - | 5.5 | V |
| Operating Ambient Temperature (TA) | -40 | - | 125 | °C |
| Output Continuous Current (IO) | -1 | - | 1 | mA |
| Power-on Time (tON) | 175 | 330 | - | µs |
| Sensing Bandwidth (fBW) | - | 20 | - | kHz |
| Propagation Delay Time (td) | - | 10 | - | µs |
| Sensitivity (at VCC = 5 V, TA = 25°C) | 95 | 100 | 105 | mV/mT |
| Linear Magnetic Sensing Range (at VCC = 5 V, TA = 25°C) | -21 | - | 21 | mT |
| Quiescent Voltage (VQ) at B = 0 mT, TA = 25°C | 2.43 | 2.5 | 2.57 | V |
Key Features
- Ratiometric Linear Hall Effect Magnetic Sensor: Responds proportionally to magnetic flux density.
- Operating Voltage: Operates from 3.3-V and 5-V power supplies.
- Analog Output: Provides an analog output with VCC/2 quiescent offset.
- Sensitivity Options: Four sensitivity options (A1/Z1, A2/Z2, A3/Z3, A4/Z4) with different magnetic sensing ranges.
- Fast Sensing Bandwidth: 20-kHz sensing bandwidth.
- Low-Noise Output: Low-noise output with ±1-mA drive capability.
- Magnet Temperature Compensation: Compensates for magnet temperature drift in A1/A2/A3/A4 versions.
- Package Options: Available in surface-mount SOT-23 and through-hole TO-92 packages.
Applications
- Position Sensing: Accurate position sensing in a wide range of applications.
- Fluid Flow Rate Measurement: Used in fluid flow rate measurement systems.
- Medical Devices: Suitable for use in medical devices due to its high accuracy and reliability.
- Absolute Angle Encoding: Used in absolute angle encoding applications.
- Current Sensing: Can be used for current sensing in various electrical systems.
Q & A
- What is the operating voltage range of the DRV5055A1QLPGM?
The DRV5055A1QLPGM operates from 3.3-V to 5-V power supplies, with two recommended operating ranges: 3 V to 3.63 V and 4.5 V to 5.5 V.
- What is the sensitivity of the DRV5055A1QLPGM at 5 V and 25°C?
The sensitivity of the DRV5055A1QLPGM at 5 V and 25°C is typically 100 mV/mT.
- What is the linear magnetic sensing range of the DRV5055A1QLPGM?
The linear magnetic sensing range of the DRV5055A1QLPGM is ±21 mT at 5 V and 25°C.
- Does the DRV5055A1QLPGM have temperature compensation for magnet drift?
Yes, the DRV5055A1QLPGM has temperature compensation for magnet drift in the A1/A2/A3/A4 versions.
- What are the package options available for the DRV5055A1QLPGM?
The DRV5055A1QLPGM is available in both surface-mount SOT-23 and through-hole TO-92 packages.
- What is the operating temperature range of the DRV5055A1QLPGM?
The operating temperature range of the DRV5055A1QLPGM is -40°C to 125°C.
- How does the DRV5055A1QLPGM eliminate error from VCC tolerance?
The DRV5055A1QLPGM uses a ratiometric architecture that can eliminate error from VCC tolerance when the external analog-to-digital converter (ADC) uses the same VCC for its reference.
- What is the sensing bandwidth of the DRV5055A1QLPGM?
The sensing bandwidth of the DRV5055A1QLPGM is 20 kHz.
- How long does the DRV5055A1QLPGM take to power on?
The power-on time (tON) of the DRV5055A1QLPGM is typically 175 µs to 330 µs.
- What is the quiescent voltage of the DRV5055A1QLPGM at 5 V and 25°C?
The quiescent voltage (VQ) of the DRV5055A1QLPGM at 5 V and 25°C is typically 2.5 V.
