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Texas Instruments DRV5056A3QDBZR
- Part No.:
- DRV5056A3QDBZR
- Manufacturer:
- Texas Instruments
- Category:
- Linear, Compass (ICs)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DRV5056A3QDBZR.pdf
- Description:
- SENSR HALL EFFECT ANALOG SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,720
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Product details
Overview
DRV5056A3QDBZR from Texas Instruments is a unipolar ratiometric linear Hall-effect sensor in SOT-23 package, designed for precise analog position sensing using south-pole magnetic fields. It delivers 50 mV/mT sensitivity at 5 V, supports 79 mT linear range, operates from 3.3 V or 5 V supplies, and features magnet temperature compensation across –40°C to +125°C for industrial position feedback systems.
For engineers reviewing the DRV5056A3QDBZR datasheet, DRV5056A3QDBZR pinout, DRV5056A3QDBZR application, or DRV5056A3QDBZR equivalent, this page provides verified technical context, validated pin functions, confirmed magnetic and electrical specifications, real-world application mappings, and two rigorously cross-checked alternative parts for unipolar linear Hall sensing in embedded motion control.
Technical Context
The DRV5056A3QDBZR implements a fully integrated ratiometric analog signal chain with on-die Hall element, precision amplifier, offset cancellation, and magnet temperature compensation (STC = 0.12%/°C). Its output voltage scales linearly with both applied flux density and supply voltage (VCC), enabling high-accuracy digitization when paired with a VCC-referenced ADC.
It senses magnetic flux perpendicular to the top surface of the SOT-23 package, with quiescent output fixed at 0.6 V (±50 mV) at zero field. The device achieves 20 kHz bandwidth and ±1 mA output drive capability while maintaining input-referred noise of 130 nT/√Hz at 5 V - optimized for stable analog position measurement in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensitivity (VCC = 5 V) | 50 mV/mT - enables full-scale analog output swing over 79 mT linear range without clipping |
| Quiescent Output Voltage | 0.6 V ±50 mV - establishes mid-supply reference point for bidirectional analog sensing headroom |
| Operating Supply | 3.3 V or 5 V (±10%) - dual-rail compatibility simplifies integration into existing 3.3 V or 5 V controller subsystems |
| Sensing Bandwidth | 20 kHz - supports real-time position tracking in fast-moving actuators and robotics joints |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and factory automation use |
| Magnet Temp Compensation | 0.12%/°C STC - actively counteracts neodymium magnet drift to maintain linearity across full operating range |
| Output Drive | ±1 mA - sufficient to drive typical RC filters or 10 kΩ ADC inputs without external buffering |
Pinout & Package
SOT-23 (DBZ) 3-pin surface-mount package: 2.92 mm × 2.37 mm footprint with gull-wing leads, optimized for automated assembly and compact PCB layouts in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Accepts 3.3 V or 5 V ±10%; requires ≥0.1 µF ceramic decoupling capacitor to GND for stable operation |
| GND | Ground reference | Provides return path for supply current and output current; must be low-impedance connection to system ground plane |
| OUT | Analog voltage output | 0.6 V quiescent, ratiometrically scaled by B-field and VCC; drives ±1 mA into external load or filter network |
Key Features
| Feature | Design Value |
|---|---|
| Unipolar linear response | Outputs increasing voltage only for south-pole magnetic flux - eliminates ambiguity in one-directional position sensing |
| Ratiometric architecture | Output sensitivity scales with VCC, minimizing error when ADC uses same VCC as reference - improves system-level accuracy without calibration |
| Magnet temperature compensation | 0.12%/°C gain adjustment counters NdFeB magnet drift - maintains <±1% linearity error over –40°C to +125°C |
| Low-noise analog output | 130 nT/√Hz input-referred noise at 5 V - enables sub-millimeter resolution in precision fluid flow or tilt measurement |
| Fast power-on time | 300 µs max tON - ensures rapid readiness after power-up in battery-powered or safety-critical motion detection systems |
Applications
| Industrial Position Feedback | Automotive Pedal Sensing |
|---|---|
|
Use Scenario: Monitoring linear displacement of hydraulic cylinder rods in factory automation machinery. IC Role / Device Role / Timing Role: Unipolar linear Hall sensor converting south-pole magnetic field strength into proportional analog voltage for PLC analog input. Use Value: 50 mV/mT sensitivity and 79 mT range deliver >3 V full-scale swing over 0–40 mm stroke, enabling 12-bit+ resolution without amplification. |
Use Scenario: Measuring accelerator pedal angle in 12 V automotive systems with isolated 5 V sensor rail. IC Role / Device Role / Timing Role: Ratiometric analog position transducer interfacing directly to ECU's 5 V-referenced ADC. Use Value: Magnet temperature compensation maintains <±2% output error over –40°C to +85°C ambient - critical for drivability consistency. |
| Medical Infusion Pump | Home Appliance Lid Detection |
|
Use Scenario: Detecting syringe plunger position in battery-powered infusion pumps requiring high reliability and low power. IC Role / Device Role / Timing Role: Low-noise Hall sensor providing analog feedback to microcontroller for closed-loop motor control. Use Value: 20 kHz bandwidth supports real-time speed/position correction during bolus delivery; ±1 mA drive powers internal RC filter for noise suppression. |
Use Scenario: Confirming washing machine door closure via magnetic actuator mounted on latch mechanism. IC Role / Device Role / Timing Role: Cost-optimized unipolar Hall switch replacement delivering analog confirmation of exact lid angle. Use Value: 0.6 V quiescent output and 50 mV/mT gain enable robust detection across mechanical tolerances - no contact wear or bounce issues. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar linear Hall sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV5055A3QDBZR | Same SOT-23 package, identical 50 mV/mT sensitivity, but no magnet temperature compensation (STC = 0%/°C) | Limited to narrow-temperature applications (<60°C) where magnet drift is negligible or externally compensated | Select when cost reduction is prioritized over wide-temperature linearity; verify magnet type and thermal profile first. |
| TMAG5170AHQDBTR | 3-axis Hall sensor with digital SPI output, 16-bit resolution, and integrated diagnostics - not analog or ratiometric | Requires MCU with SPI interface; supports multi-axis sensing and self-test - unsuitable for simple analog-only designs | Choose only if system already uses SPI peripherals and benefits from vector field analysis or functional safety diagnostics. |
Compared with DRV5056A3QDBZR, DRV5055A3QDBZR offers identical analog performance without temperature compensation - reducing cost but limiting use to thermally stable environments. TMAG5170AHQDBTR replaces analog simplicity with digital flexibility and multi-axis capability, demanding firmware changes and higher BOM complexity.
Availability
DRV5056A3QDBZR is available at Aetrix Electronics and suitable for industrial position feedback, automotive pedal sensing, medical infusion pump monitoring, and home appliance lid detection requiring stable component supply and long-term production continuity.
Supply support for DRV5056A3QDBZR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision sensing and industrial-grade signal conditioning ICs.
DRV5056A3QDBZR belongs to TI's Hall-effect sensor product line, engineered specifically for high-accuracy unipolar linear position measurement in harsh environments - emphasizing ratiometric stability, magnet temperature compensation, and robust SOT-23 packaging.
FAQ
What is the magnetic polarity response of the DRV5056A3QDBZR?
The DRV5056A3QDBZR responds exclusively to the south pole of a magnet, producing an increasing analog output voltage proportional to magnetic flux density. It does not respond to north poles - this unipolar behavior eliminates ambiguity in directional position sensing and simplifies mechanical design by requiring only one pole orientation.
Does the DRV5056A3QDBZR require external components for basic operation?
Yes - DRV5056A3QDBZR requires a minimum 0.1 µF ceramic decoupling capacitor between VCC and GND, placed as close as possible to the pins. No external resistors or filters are needed for standard operation, though an RC low-pass filter may be added to OUT if 20 kHz bandwidth exceeds application requirements and noise reduction is desired.
How does the ratiometric architecture of the DRV5056A3QDBZR improve system accuracy?
The DRV5056A3QDBZR's ratiometric architecture ensures its sensitivity scales linearly with VCC, so when used with an ADC that references the same VCC, supply voltage tolerance errors cancel out. This eliminates the need for separate voltage regulation or calibration routines - delivering consistent position measurement accuracy across varying input rail conditions.
What is the linear magnetic sensing range of the DRV5056A3QDBZR at 3.3 V supply?
At 3.3 V supply and 25°C, the DRV5056A3QDBZR maintains a linear magnetic sensing range of 78 mT - slightly reduced from the 79 mT specified at 5 V due to lower sensitivity (30 mV/mT vs. 50 mV/mT). This range remains fully usable for most position-sensing applications requiring sub-millimeter resolution within compact mechanical envelopes.
Can the DRV5056A3QDBZR operate reliably in automotive under-hood environments?
Yes - DRV5056A3QDBZR is rated for operation from –40°C to +125°C junction temperature and features magnet temperature compensation optimized for neodymium magnets. Its SOT-23 package meets automotive thermal dissipation requirements when mounted on standard FR-4 PCBs with adequate copper area, making it suitable for throttle, brake, and suspension position sensing.
DRV5056A3QDBZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- Analog Voltage
- Sensing Range:
- 79mT
- Voltage - Supply:
- 3V ~ 3.63V, 4.5V ~ 5.5V
- Current - Supply (Max):
- 10mA
- Current - Output (Max):
- 1mA
- Resolution:
- -
- Bandwidth:
- 20kHz
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Features:
- Temperature Compensated
- Supplier Device Package:
- SOT-23-3
- Mounting Type:
- Surface Mount
DRV5056A3QDBZR FAQ
1.How can I place an order for DRV5056A3QDBZR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV5056A3QDBZR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV5056A3QDBZR reliable?
The price and inventory of DRV5056A3QDBZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV5056A3QDBZR is usually 5 days.
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Once your DRV5056A3QDBZR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV5056A3QDBZR?
For technical support, including DRV5056A3QDBZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV5056A3QDBZR requirements.
6.How does Aetrix verify that DRV5056A3QDBZR is sourced from the original manufacturer or authorized distributors?
All DRV5056A3QDBZR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV5056A3QDBZR meets industry standards.
7.What is the process for return or replacement of DRV5056A3QDBZR?
All DRV5056A3QDBZR units undergo pre-shipment inspection (PSI). If there is an issue with DRV5056A3QDBZR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV5056A3QDBZR part is unused and in its original packaging.
Return procedure for DRV5056A3QDBZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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