TMAG6181-Q1
Automotive high-precision analog AMR angle sensor with integrated turns counter
TMAG6181-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 0: –40°C to 150°C
- Functional Safety-Compliant targeted
- Developed for functional safety applications
- Documentation to aid ISO 26262 system design up to ASIL B will be available at production release
- High-precision and high-speed AMR angle sensor:
- Angle error : 0.1° (typical)
- Angle error : 0.6° (maximum across temperature)
- Ultra low latency < 2 µs supports up to 100 krpm
- Angle range: 180°
- Low angle drift eliminates the need for calibration across temperatures
- Wide operating magnetic field range: 20 mT – 1 T
- Sine and cosine differential ratiomentric analog outputs
- Supports differential-ended or single-ended applications
- Fast start-up time: < 40 µs
- Integrated Turns Counter provides rotation turns count using PWM output:
- Low-power mode with turns counter enabled consumes < 45 µA
- Intelligent rotation tracking enables to track up to 8 krpm in low-power mode
- Dedicated pin to enter sleep mode: < 5 µA
- Supply voltage range: 2.7 V to 5.5 V
The TMAG6181-Q1 is a high-precision angle sensor based on Anisotropic Magneto Resistive (AMR) technology. The device features integrated signal conditioning amplifiers and provides differential sine and cosine analog outputs related the direction of the applied in-plane magnetic field. This device also features two independent Hall sensors at X and Y axes that are used to keep track of rotations.
The TMAG6181-Q1 features a wide operating magnetic field (20 mT – 1 T) that enables flexible mechanical placements. The device features an ultra low latency (< 2 µs) on the sine and cosine outputs and is best suited for high speed applications like rotor position sensing. The fast start-up time (< 40 µs) enables low power applications.
The device integrates a turns counter to keep track of the number of rotations and counter value is transmitted using PWM on the TURNS pin. The device features a SLEEPB pin, that enables it to enter two low power modes, sleep mode and a low power turns counting mode.
The TMAG6181-Q1 offers extensive diagnostics and is designed for functional safety applications. The device performs consistently across a wide ambient temperature range of –40°C to +150°C with minimal thermal drift and lifetime errors.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | TMAG6181-Q1 High-Precision Analog AMR Angle Sensor With Integrated Turns Counter datasheet | PDF | HTML | 15 Mar 2023 |
Application note | Benefit of Low-Power Turns Count in AMR Sensing | PDF | HTML | 29 Nov 2023 | |
White paper | Auto Functional Safety and How TI is Helping Customers W/ High-Precision Sensors | PDF | HTML | 28 Aug 2023 | |
EVM User's guide | TMAG6180EVM, TMAG6181EVM Evaluation Module User's Guide | PDF | HTML | 21 Mar 2023 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
TMAG6180-6181EVM — TMAG6180 and TMAG6181 evaluation module with differential sine and cosine analog outputs
The TMAG6180-6181EVM evaluation module (EVM) is a convenient platform to evaluate performance of the AMR sensors TMAG6180 and TMAG6181 for rotary position sensing. These devices offer differential sine and cosine analog outputs which may be used for high speed angle measurements. The TMAG6180 (...)
TI-MAGNETIC-SENSE-SIMULATOR — TI Magnetic sensing simulation tool
The TI-MAGNETIC-SENSE-SIMULATOR (TIMSS) webtool estimates magnetic flux density and TI magnetic sensor outputs for magnetic position sensing systems. The tool has device emulation and supports various magnet shapes, grades and motion types.
Supported products & hardware
Products
Hall-effect latches & switches
Linear Hall-effect sensors
Multi-axis linear & angle position sensors
Hardware development
Software
Calculation tool
Package | Pins | Download |
---|---|---|
VSSOP (DGK) | 8 | View options |
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