XENSIV™ Angle Sensor (GMR/AMR/TMR) High-precision angle detection from 0 to 360° with automotive-grade reliability and functional safety. The definitive magnetic angle sensor accelerates design for everything from steering/EPS, xEV drive, and ACTUATORS. | NEXTY Electronics, a trading company for electronic components and semiconductors

Infineon Technologies AG

Product overview

XENSIV™ angle sensors are a comprehensive lineup of automotive angle sensors using Infineon's xMR (AMR/GMR/TMR) magnetic technology. They are available in single and dual channel configurations and with a variety of interfaces, including analog Sin/Cos, SENT/SPC, PWM, and SPI-compatible SSC, enabling stable angle detection from 0 to 360° even with low-cost magnets.
The portfolio includes AMR, which has excellent stability over temperature and aging, GMR, which is suitable for high-speed response and 360-degree detection, and TMR, which has high sensitivity and low power consumption, and is suitable for a wide range of applications such as EPS, steering angle, motor 6-step/FOC control, pedal/valve position detection, etc. In addition, dual sensors, which have two independent sensors stacked vertically (top/bottom) in the same TDSO package, achieve a more uniform magnetic field distribution and a small footprint, making them ideal for applications with high safety requirements.
Infineon has a track record of achieving the highest functional safety grades for single-chip magnetic angle sensors (product/requirements dependent) and also offers derivatives with ASIL-compliant/documented readiness.

Features:
0 to 360° absolute angle
Various I/F SENT/SPC, PWM, SSC, Sin/Cos
Automotive grade AEC-Q100/ASIL compliant
Dual configuration redundancy/diverse redundancy (AMR+GMR)

Product group

List of main features and specifications

GMR: TLE5012B (digital multi-I/F)
360° detection, 15-bit absolute angle (0.01° resolution), internal auto-calibration ensures a maximum error of ±1.0° over the sensor's lifetime (typical value).
SSC (SPI compatible), SENT/SPC, PWM, incremental I/F. AEC-Q100.
Applications: EPS, steering angle, EC motor, rotary SWITCHES, etc.

AMR+GMR: TLE5309D (diverse redundancy/analog)
AMR (0-180° high precision) + GMR (0-360°) are integrated into upper and lower heterogeneous dies, enhancing redundancy and fault isolation.
Analog Sin/Cos output, 3.3V/5V supply, -40 to 125°C. ISO 26262 Ready.
Applications: BLDC for EPS, ACTUATORS that require functional safety.

TMR: TLE5501 (high sensitivity, low power/analog)
Sin/Cos differential output by TMR bridge, large signal of maximum 0.37 V/V, easy to connect directly to MCU.
The E0002 derivative supports external redundant calculation with bridge isolation, and is ISO 26262 ASIL-D compliant (assuming safety mechanisms are in place).
AEC-Q100 Grade 0 (-40 to 150°C environment). Ideal for steering angle/BLDC commutation.

technology	Angle Range	Strengths	Representative item	Main I/F
AMR	0 to 180° (High precision)	Temperature and aging stability, high accuracy, low latency	TLE5109A16(AMR)/TLE5309D(AMR+GMR)	Analog Sin/Cos
GMR	0～360°	High-speed response, 360° absolute	TLE5012B / TLE5014 / TLE5009	SSC (SPI compatible), SENT/SPC, PWM, incremental, Sin/Cos
TMR	0～360°	High sensitivity, low power consumption, and large output for easy direct connection to MCU	TLE5501	Analog Sin/Cos

For detailed technical information, please visit the Infineon website.

Benefits of implementation

problems	solution
EPS provides high accuracy and low latency	PFC control minimizes phase lag by directly connecting xMR + Sin/Cos.
Resistant to air gaps and magnetic field variations	xMR detects the "direction" of a magnetic field and is robust to strength fluctuations.
Reduced burden of ASIL achievement	We offer vertically stacked dual/diverse redundancy, ASIL-compliant products, and safety documentation.
Miniaturization/cost optimization	Dual vertical stacking reduces board area and allows the use of low-cost magnets.

Use cases and implementation examples

Use Case 1: EPS (Electric Power Steering) / Steering Angle

[Use case overview]
By using GMR/AMR/TMR technologies appropriately, low latency, high precision angle feedback and functional safety are both achieved. The TLE5012B (GMR) is suitable for diagnosis and redundancy design with its digital I/F, while the TLE5501 (TMR) ensures a noise margin with its highly sensitive Sin/Cos. The TLE5309D with its diverse redundancy is ideal for EPS with high safety requirements.

[Major features]
0~360° angle, speed/rotation count, self-diagnosis

[Introduction Effects]
Stabilization of steering assist, faster abnormality detection, robustness to EMC/variation

Use case 2: xEV drive motor (FOC/6 steps)

[Use case overview]
High-resolution position detection using Sin/Cos or SENT/SPC outputs improves efficiency and quietness in BLDC/PM motors for electric compressors, pumps, and axles. The high-speed response of GMR and the high output of TMR suppress phase lag and quantization noise in the control loop.

[Major features]
Sin/Cos differential, SENT/SPC, PWM, SSC (SPI compatible)

[Introduction Effects]
High efficiency, low vibration, and reduced calibration load

Use Case 3: Pedals, Valves, and Rotary SWITCHES

[Use case overview]
The xMR method is low-power, highly accurate, and robust against gap variations, improving the reliability of position detection. AMR has excellent aging and temperature stability, while GMR can read the position continuously over 360°.

[Major features]
Combined detection of angle, direction and speed, incremental I/F

[Introduction Effects]
Increased design freedom and redundancy for improved safety