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Texas Instruments TMAG5173C1QDBVRQ1
- Part No.:
- TMAG5173C1QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Linear, Compass (ICs)
- Package:
- SOT-23-6
- Datasheet:
-
TMAG5173C1QDBVRQ1.pdf
- Description:
- AUTOMOTIVE, HIGH-PRECISION, LINE
- Quantity:
- Payment:
- Shipping:
Inventory:2,255
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Product details
Overview
TMAG5173C1QDBVRQ1 from Texas Instruments is a high-precision automotive-grade 3D Hall-effect sensor IC for real-time linear magnetic field and temperature measurement in X, Y, Z axes. It delivers ±2.5% sensitivity error (X/Y/Z), ±1.1° X-Y angle error at room temperature, 20 kSPS single-axis conversion rate, and operates from –40°C to 125°C. It enables accurate angular position sensing in steering column and shifter systems.
For engineers reviewing the TMAG5173C1QDBVRQ1 datasheet, TMAG5173C1QDBVRQ1 pinout, TMAG5173C1QDBVRQ1 application, or TMAG5173C1QDBVRQ1 equivalent, this page provides verified functional safety (ASIL B hardware integrity), I²C interface timing (1 MHz max), ±40/±80 mT configurable magnetic range, integrated CORDIC angle engine, and sleep-mode current of 8 nA - all confirmed for the C1 variant.
Technical Context
The TMAG5173C1QDBVRQ1 integrates three orthogonal Hall elements with a shared 16-bit ADC, precision analog signal chain, and on-die temperature sensor. Its digital core implements configurable averaging (up to 32×), gain/offset correction, and CORDIC-based full 360° angle calculation across X-Y, Y-Z, or Z-X planes.
Functional safety architecture includes systematic capability up to ASIL D, hardware integrity compliant with ASIL B per ISO 26262, and built-in diagnostics for magnetic threshold cross detection, register CRC, and I²C communication integrity. Power management supports active (2.4 mA), standby (450 µA), and ultra-low-power sleep (8 nA) modes with wake-up via INT or I²C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 3.6 V - compatible with automotive 3.3 V domains and tolerant to 5.5 V on I²C/INT pins. |
| Magnetic Range (C1) | ±40 mT or ±80 mT per axis - factory-configured for TMAG5173C1; enables SNR optimization for weak or strong magnets. |
| X-Y Angle Error | ±1.1° max at 25°C - enables high-fidelity rotary position sensing without external calibration in on-axis topologies. |
| I²C Speed | Up to 1 MHz - supports fast host polling and low-latency feedback in real-time control loops. |
| Sleep Current | 8 nA typical - allows battery-powered modules (e.g., door handles, e-bike sensors) to operate for years on coin cells. |
| Temp Sensor Accuracy | ±0.5°C to ±3.5°C over –40°C to 125°C - supports thermal budget monitoring and magnet temp compensation. |
| Functional Safety | ASIL B hardware integrity, ASIL D systematic capability - meets requirements for steering, shifter, and seat actuator safety subsystems. |
Pinout & Package
TMAG5173C1QDBVRQ1 is housed in a 6-pin SOT-23 (DBV) package measuring 2.9 mm × 2.8 mm, optimized for space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: SCL | I²C clock input/output | Open-drain, 5.5 V tolerant; supports standard/fast/fast-plus modes up to 1 MHz with integrated glitch filter. |
| 2: GND | Power ground | Main reference for analog and digital circuits; requires low-impedance connection to system ground plane. |
| 3: GND (TEST) | TI factory test pin | Must be connected to GND in final application; not intended for user signal routing or decoupling. |
| 4: VCC | Supply voltage input | 2.3–3.6 V main power rail; internal UVLO triggers at 1.9–2.2 V to prevent erratic operation during brownout. |
| 5: INT | Configurable interrupt output/input | Open-drain, 5.5 V tolerant; supports latched/fixed-width magnetic or thermal threshold alerts without host polling. |
| 6: SDA | I²C data input/output | Open-drain, 5.5 V tolerant; includes integrated CRC for read/write transaction integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CORDIC angle engine | Delivers full 360° angular position resolution of 1/16° for X-Y, Y-Z, or Z-X planes - eliminates need for external MCU computation. |
| Configurable magnetic range selection | Per-axis ±40 mT / ±80 mT (C1 variant) - allows optimal SNR tuning during system calibration without hardware change. |
| Programmable averaging filter | Up to 32× integration reduces RMS magnetic noise to 15 µT (X/Y) or 8.6 µT (Z) - improves position stability in noisy EMI environments. |
| Temperature-compensated magnet sensing | Four TEMPCO settings (0–0.2%/°C) enable compensation for NdFeB, SmCo, AlNiCo, and ferrite magnets - maintains accuracy across thermal drift. |
| Dual-trigger conversion start | Initiated by either I²C command or falling edge on INT pin - enables deterministic timing in closed-loop motor control or wake-on-event systems. |
Applications
| Steering Column Control | Shifter Systems |
|---|---|
Use Scenario: Non-contact detection of rotational position and torque in electric power steering (EPS) columns. IC Role / Device Role / Timing Role: Primary 3D magnetic field sensor providing real-time X-Y angle and Z-axis bias for assist-torque estimation. Use Value: ±1.1° X-Y angle error enables <1° steering angle resolution; ASIL B compliance supports functional safety requirements for EPS. |
Use Scenario: Gear position sensing in electronic automatic transmissions with mechanical detents and spring-loaded levers. IC Role / Device Role / Timing Role: Magnetic threshold-cross detector with programmable hysteresis, triggering gear-state transitions via INT pin. Use Value: 8 nA sleep current extends battery life in park-position hold modules; ±40 mT range matches compact neodymium magnet placement. |
| E-Bikes | Power Seats |
Use Scenario: Pedal-assist torque sensing using off-axis magnet rotation near crankset. IC Role / Device Role / Timing Role: High-speed 20 kSPS single-axis converter capturing rapid torque transients during acceleration. Use Value: 20 kSPS sampling enables >100 Hz closed-loop assist control; integrated temperature sensor compensates for motor heat-induced magnet drift. |
Use Scenario: Multi-axis position feedback for lumbar, recline, and fore-aft adjustment in premium automotive seats. IC Role / Device Role / Timing Role: Simultaneous X/Y/Z field acquisition enabling 3D joystick-style motion detection for intuitive HMI control. Use Value: On-chip CORDIC engine computes 360° angle in real time - reduces MCU load and latency versus software-based trigonometry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3D Hall-effect sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMAG5273C1QDBVRQ1 | Higher 30 kSPS conversion rate; improved ±0.8° X-Y angle error; same DBV package and I²C interface. | Better suited for high-dynamic applications like steer-by-wire where sub-degree latency and accuracy are critical. | Select TMAG5273C1QDBVRQ1 if system requires faster sampling or tighter angular tolerance; pin-compatible upgrade path. |
| MLX90393ELW-ABA-000-RE | Triaxis SPI interface; ±0.5° angle error; wider ±100 mT range; no integrated CORDIC; higher 1.5 mA active current. | Preferred in industrial actuators where SPI bus availability and extended magnetic range outweigh I²C compatibility needs. | Choose MLX90393ELW-ABA-000-RE when SPI is preferred, higher field immunity is required, and external angle computation is acceptable. |
Compared with TMAG5173C1QDBVRQ1, TMAG5273C1QDBVRQ1 offers superior dynamic performance and tighter angle accuracy in the same footprint, while MLX90393ELW-ABA-000-RE trades I²C simplicity for broader magnetic range and SPI flexibility - making TMAG5173C1QDBVRQ1 optimal for cost-sensitive, ASIL-B-compliant automotive position sensing with minimal MCU overhead.
Availability
TMAG5173C1QDBVRQ1 is available at Aetrix Electronics and suitable for steering column control, shifter systems, and e-bike torque sensing requiring stable component supply across automotive production lifecycles.
Supply support for TMAG5173C1QDBVRQ1 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 automotive qualification expertise and AEC-Q100-compliant product development.
The TMAG5173-Q1 product line was designed specifically for high-reliability automotive position sensing - integrating functional safety, multi-axis magnetic measurement, and ultra-low-power operation into a single 6-pin SOT-23 package.
FAQ
What is the factory-programmed I²C address for TMAG5173C1QDBVRQ1?
The TMAG5173C1QDBVRQ1 has a default 7-bit I²C address of 0x78 (0xF0 write / 0xF1 read). This is fixed at manufacturing and documented in TI's SLYS035B datasheet Table 6-2. The address can be reconfigured via the I2C_ADDRESS register after power-up, but the initial boot sequence must use 0x78 to establish communication with TMAG5173C1QDBVRQ1.
Does TMAG5173C1QDBVRQ1 support both unipolar and omnipolar magnetic switching?
Yes, TMAG5173C1QDBVRQ1 supports configurable unipolar and omnipolar switch functionality through its user registers. This allows the device to generate interrupts based on either north-pole-only detection (unipolar) or either pole (omnipolar), enabling flexible proximity and presence detection in applications like door module latches or seat occupancy sensing - all without external logic.
How does the integrated temperature sensor in TMAG5173C1QDBVRQ1 improve magnetic measurement accuracy?
The integrated temperature sensor in TMAG5173C1QDBVRQ1 provides real-time die temperature data (±0.5°C to ±3.5°C accuracy) used by the on-chip TEMPCO engine to dynamically adjust magnetic gain and offset. This compensates for thermal drift of both the Hall elements and attached magnets - ensuring consistent ±2.5% sensitivity error and ±1.2° X-Y angle drift across –40°C to 125°C operation of TMAG5173C1QDBVRQ1.
Can TMAG5173C1QDBVRQ1 perform angle calculations without host MCU intervention?
Yes, TMAG5173C1QDBVRQ1 includes a dedicated hardware CORDIC engine that computes full 360° angular position from raw X/Y, Y/Z, or Z/X magnetic data - delivering results directly to result registers. This eliminates MCU computational load and latency, enabling deterministic real-time angle reporting in steering wheel or joystick applications using TMAG5173C1QDBVRQ1.
What is the maximum magnetic field range supported by TMAG5173C1QDBVRQ1?
The TMAG5173C1QDBVRQ1 supports two factory-configured magnetic ranges: ±40 mT and ±80 mT on all three axes (X, Y, Z). These ranges are selected via the x_y_RANGE and z_RANGE register bits and are specific to the C1 variant. The device is not rated for ±133 mT or ±266 mT ranges - those apply only to A2/B2/C2/D2 variants, not TMAG5173C1QDBVRQ1.
TMAG5173C1QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Hall Effect
- Axis:
- X, Y, Z
- Output Type:
- I2C
- Sensing Range:
- ±40mT, ±80mT
- Voltage - Supply:
- 2.3V ~ 3.6V
- Current - Supply (Max):
- 5mA
- Current - Output (Max):
- 10mA
- Resolution:
- 12 b
- Bandwidth:
- 1MHz
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- Programmable, Sleep Mode, Temperature Compensated
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
TMAG5173C1QDBVRQ1 FAQ
1.How can I place an order for TMAG5173C1QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMAG5173C1QDBVRQ1 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 TMAG5173C1QDBVRQ1 reliable?
The price and inventory of TMAG5173C1QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMAG5173C1QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TMAG5173C1QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMAG5173C1QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMAG5173C1QDBVRQ1?
TMAG5173C1QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMAG5173C1QDBVRQ1 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 TMAG5173C1QDBVRQ1?
For technical support, including TMAG5173C1QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMAG5173C1QDBVRQ1 requirements.
6.How does Aetrix verify that TMAG5173C1QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TMAG5173C1QDBVRQ1 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 TMAG5173C1QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TMAG5173C1QDBVRQ1?
All TMAG5173C1QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMAG5173C1QDBVRQ1, 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 TMAG5173C1QDBVRQ1 part is unused and in its original packaging.
Return procedure for TMAG5173C1QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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