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Texas Instruments DRV5055A2ELPGMQ1
- Part No.:
- DRV5055A2ELPGMQ1
- Manufacturer:
- Texas Instruments
- Category:
- Linear, Compass (ICs)
- Package:
- TO-226-3, TO-92-3 Short Body
- Datasheet:
-
DRV5055A2ELPGMQ1.pdf
- Description:
- SENSOR HALL EFFECT ANALOG TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:88,738
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Product details
Overview
DRV5055A2ELPGMQ1 from Texas Instruments is an AEC-Q100 Grade 0 (–40°C to +150°C) ratiometric linear Hall-effect sensor in TO-92 (LPG) package, delivering 50 mV/mT sensitivity at 5 V supply, ±42 mT linear magnetic range, and 20 kHz bandwidth for automotive position sensing. It outputs analog voltage referenced to VCC with VCC/2 quiescent offset and magnet temperature compensation.
For engineers reviewing the DRV5055A2ELPGMQ1 datasheet, DRV5055A2ELPGMQ1 pinout, DRV5055A2ELPGMQ1 application, or DRV5055A2ELPGMQ1 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed automotive use cases, and two rigorously cross-checked alternative parts - all grounded in TI's SBAS639E production data sheet.
Technical Context
The DRV5055A2ELPGMQ1 implements a fully integrated ratiometric architecture where both quiescent output voltage (VQ = VCC/2 ±1%) and sensitivity scale linearly with supply voltage - enabling error cancellation when paired with an ADC using the same VCC reference. Its internal temperature compensation (STC = 0.12%/°C) actively counteracts neodymium magnet drift across –40°C to +150°C.
It uses a single silicon Hall element located 650 µm ±80 µm from the top surface of the TO-92 package, optimized for magnetic flux perpendicular to the marked side. The device operates in one functional mode with 175–330 µs power-on time and supports wire-break detection via external pull-up resistor without requiring additional ICs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensitivity | 50 mV/mT at 5 V - delivers full-scale output swing over ±42 mT range, maximizing ADC resolution for mid-range position sensing |
| Linear Range | ±42 mT at 5 V - defines usable magnetic field span before output nonlinearity exceeds ±1% error |
| Bandwidth | 20 kHz - supports real-time monitoring of fast-moving components like throttle valves or gear shifters |
| Quiescent Output | VCC/2 ±1% - enables bidirectional sensing with zero-field reference centered in supply rail |
| Operating Temp | –40°C to +150°C - qualified per AEC-Q100 Grade 0 for under-hood automotive environments |
| Supply Voltage | 4.5 V to 5.5 V - dual-rail compatibility with 5 V systems; stable operation even with ±10% tolerance |
| Output Drive | ±1 mA - sufficient to drive RC filters or 10 kΩ ADC inputs without buffering |
| Input Noise | 130 nT/√Hz at 5 V - translates to ~0.12 mT peak-to-peak noise in 20 kHz bandwidth, critical for precision pedal sensing |
Pinout & Package
DRV5055A2ELPGMQ1 uses the LPG (TO-92, 3-pin) through-hole package, 4 mm × 1.52 mm nominal footprint, with Hall element centered 1030 µm ±115 µm from lead plane and 650 µm ±80 µm below top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Return path for supply current and output signal; must connect to low-impedance system ground plane |
| OUT | Analog output | Single-ended ratiometric voltage (0.2 V to VCC–0.2 V); requires RC filter if bandwidth <20 kHz to reduce noise |
| VCC | Power supply | Accepts 4.5–5.5 V; requires ≥0.01 µF ceramic decoupling capacitor directly at pin to suppress supply transients |
Key Features
| Feature | Design Value |
|---|---|
| Ratiometric architecture | Eliminates VCC tolerance errors when ADC shares same VCC reference - no calibration needed across supply variance |
| Magnet temperature compensation | 0.12%/°C sensitivity increase counters NdFeB magnet drift, maintaining linearity across full –40°C to +150°C range |
| Low-noise analog output | 130 nT/√Hz input-referred noise enables sub-millitesla resolution in high-SNR applications like brake pedal sensing |
| Fast power-on response | 330 µs max tON ensures immediate readiness after ignition - meets automotive cold-start timing requirements |
| Wire-break fault detection | Supports fail-safe diagnostics via external pull-up; output near VCC or GND indicates open/short circuit in harness |
Applications
| Brake Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Detect absolute linear displacement of hydraulic brake pedal within 0–100% travel range under engine bay temperatures up to 150°C. IC Role / Device Role / Timing Role: Ratiometric analog front-end converting magnetic flux change into proportional voltage, sampled by microcontroller ADC at ≥1 kHz. Use Value: ±42 mT range and 50 mV/mT sensitivity deliver >2 V output swing over full pedal stroke, enabling 12-bit+ resolution without gain stages. |
Use Scenario: Monitor angular rotation of throttle body shaft in gasoline direct injection engines with vibration and thermal cycling. IC Role / Device Role / Timing Role: Linear Hall sensor mounted on throttle housing, measuring flux from rotating diametric magnet aligned perpendicular to package top. Use Value: 20 kHz bandwidth captures rapid transient events (e.g., tip-in), while ratiometric output maintains accuracy despite battery voltage sag during cranking. |
| Torque Sensor in EPS | Gear Shifter Position |
Use Scenario: Measure torsional deflection in electric power steering column using differential Hall pair with DRV5055A2ELPGMQ1 as one channel. IC Role / Device Role / Timing Role: High-stability analog sensor providing DC-coupled torque feedback signal to EPS ECU for assist control loop. Use Value: Magnet temperature compensation ensures consistent torque sensitivity across ambient extremes, reducing calibration drift in production vehicles. |
Use Scenario: Detect discrete mechanical positions (P/R/N/D) in automatic transmission shifter assemblies exposed to under-dash heat and humidity. IC Role / Device Role / Timing Role: Contactless position detector replacing potentiometers; senses magnet movement along linear track during gear selection. Use Value: TO-92 package allows robust through-hole mounting in sealed enclosures; ±1% VQ ratiometry error prevents false gear detection during voltage fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ratiometric linear Hall-effect sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV5055A2QDBVRQ1 | SOT-23 (DBZ) package, identical sensitivity (50 mV/mT), same AEC-Q100 Grade 0 rating, but 170°C/W junction-to-ambient thermal resistance vs 121°C/W for LPG | Better suited for space-constrained PCB layouts; less optimal for high-power dissipation in sealed enclosures | Select when board area is limited and thermal management via copper pour is feasible |
| MLX90242ESE-GAA-100-SP | Triaxis® Hall sensor with XYZ vector output; 40 mV/mT sensitivity; operates from 4.5–5.5 V; AEC-Q100 Grade 1 (–40°C to +125°C) | Enables 3D angle measurement; lacks built-in magnet temperature compensation; requires external MCU processing | Choose when multi-axis motion tracking is required and system-level temperature compensation can be implemented in firmware |
Compared with DRV5055A2ELPGMQ1, the SOT-23 alternative trades thermal performance for footprint reduction, while the MLX90242 offers vector capability at the cost of added signal processing complexity and reduced high-temperature operating margin - making DRV5055A2ELPGMQ1 optimal for cost-sensitive, thermally demanding linear position tasks.
Availability
DRV5055A2ELPGMQ1 is available at Aetrix Electronics and suitable for automotive brake pedal sensing, throttle position monitoring, and electric power steering torque measurement requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DRV5055A2ELPGMQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive-grade sensors and power management ICs.
DRV5055A2ELPGMQ1 belongs to TI's automotive Hall-effect sensor product line, engineered specifically for contactless position and current sensing in safety-critical vehicle subsystems operating from –40°C to +150°C.
FAQ
What is the exact magnetic sensitivity and linear range of DRV5055A2ELPGMQ1 at 5 V?
The DRV5055A2ELPGMQ1 has a nominal sensitivity of 50 mV/mT and a linear magnetic sensing range of ±42 mT when operated at VCC = 5 V and TA = 25°C. This range is defined by the device's ±1% linearity error specification and accounts for worst-case quiescent voltage and sensitivity tolerances per TI's SBAS639E datasheet Section 5.6.
Does DRV5055A2ELPGMQ1 require external temperature compensation in automotive applications?
No - DRV5055A2ELPGMQ1 includes integrated magnet temperature compensation (STC = 0.12%/°C) designed to offset the typical drift of neodymium magnets across –40°C to +150°C. This eliminates need for external compensation circuits or firmware correction in most automotive position sensing applications.
What is the recommended decoupling capacitor for DRV5055A2ELPGMQ1?
Texas Instruments specifies a minimum 0.01 µF ceramic capacitor placed as close as possible to the VCC pin of DRV5055A2ELPGMQ1. This capacitor stabilizes the internal bias circuitry and suppresses high-frequency supply noise that could modulate the analog output - critical for maintaining 130 nT/√Hz noise performance.
Can DRV5055A2ELPGMQ1 detect both north and south magnetic poles?
Yes - DRV5055A2ELPGMQ1 produces positive output voltage for south pole approaching the marked top surface (B > 0) and negative voltage for north pole (B < 0), with quiescent output at VCC/2. This polarity distinction enables bidirectional position measurement, such as pedal travel direction or gear shifter movement toward/away from neutral.
Is DRV5055A2ELPGMQ1 pin-compatible with other variants in the DRV5055-Q1 family?
Yes - all DRV5055-Q1 variants, including DRV5055A2ELPGMQ1, share identical 3-pin TO-92 (LPG) pinout: Pin 1 = VCC, Pin 2 = OUT, Pin 3 = GND. This allows drop-in replacement between sensitivity grades (A1/A2/A3/A4/A5/Z2) without PCB changes, provided thermal and magnetic layout constraints remain valid.
DRV5055A2ELPGMQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Short Body
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- Analog Voltage
- Sensing Range:
- ±44mT
- Voltage - Supply:
- 3V ~ 3.63V, 4.5V ~ 5.5V
- Current - Supply (Max):
- 10mA
- Current - Output (Max):
- 1mA
- Resolution:
- -
- Bandwidth:
- 20kHz
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- Temperature Compensated
- Supplier Device Package:
- TO-92-3
- Mounting Type:
- Through Hole
DRV5055A2ELPGMQ1 FAQ
1.How can I place an order for DRV5055A2ELPGMQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV5055A2ELPGMQ1 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 DRV5055A2ELPGMQ1 reliable?
The price and inventory of DRV5055A2ELPGMQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV5055A2ELPGMQ1 is usually 5 days.
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DRV5055A2ELPGMQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV5055A2ELPGMQ1 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 DRV5055A2ELPGMQ1?
For technical support, including DRV5055A2ELPGMQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV5055A2ELPGMQ1 requirements.
6.How does Aetrix verify that DRV5055A2ELPGMQ1 is sourced from the original manufacturer or authorized distributors?
All DRV5055A2ELPGMQ1 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 DRV5055A2ELPGMQ1 meets industry standards.
7.What is the process for return or replacement of DRV5055A2ELPGMQ1?
All DRV5055A2ELPGMQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DRV5055A2ELPGMQ1, 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 DRV5055A2ELPGMQ1 part is unused and in its original packaging.
Return procedure for DRV5055A2ELPGMQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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