Infineon Angle Sensors Boost Accuracy and Stray Field Immunity
Infineon's XENSIV TLE49SR: A Game-Changer for Precise Angle Measurement in Automotive Applications
Infineon Technologies introduces the groundbreaking XENSIV TLE49SR, a differential Hall-based angle sensor designed to revolutionize precise angular measurements in the automotive industry. This innovative sensor caters to a wide range of applications, including:
- Chassis height measurement
- Pedal position sensing
- Throttle position detection
- Steering angle sensor systems
TLE49SR withstands stray magnetic fields of up to 8 mT.
Unmatched Accuracy and Stray Field Immunity
The TLE49SR boasts exceptional accuracy, delivering an angle error of less than 1 degree. This remarkable precision is complemented by its industry-leading stray field immunity. The sensor can withstand stray magnetic fields up to a staggering 8 mT for DC fields and 1.25 mT for AC fields, making it ideal for harsh automotive environments where such interferences are prevalent.
TLE49SR block diagram.
BonChip Electronics, a trusted distributor of Infineon products, offers the XENSIV TLE49SR sensor. Our team of experts is here to assist you in selecting the ideal sensor solution for your automotive design needs.
Delving into the Sensor's Architecture
Infineon meticulously crafted the TLE49SR around a differential Hall-based sensing principle. This design utilizes spatially separated Hall cells for accurate magnetic field measurement. These Hall cells are integrated within the same circuit, along with signal conditioning circuitry, for optimal performance. The sensor offers a flexible selection of three digital output interfaces:
- Pulse Width Modulation (PWM)
- Single Edge Nibble Transmission (SENT)
- Short PWM Code (SPC)
These interfaces adhere to the SAE J2716-2016 standard, ensuring compatibility with existing systems.
A Closer Look at the TLE49SR's Block Diagram
The TLE49SR's sophisticated architecture (detailed datasheet available) incorporates several key elements:
- Coordinate Rotation Digital Computer (CORDIC) Algorithm: This algorithm ensures precise angle calculations, contributing to the sensor's exceptional accuracy.
- EEPROM Storage: The sensor includes an EEPROM for storing vital configuration data, such as the zero angle offset and unique customer identification codes.
- Diagnostic Functions: The TLE49SR is equipped with comprehensive diagnostic functions that enhance operational reliability.
Unwavering Performance and Power Efficiency
The TLE49SR operates across a wide voltage range, supporting supply voltages from -21 V to 26 V and interface voltages from -18 V to 19.5 V. Additionally, it boasts robust protection against high voltage and reverse polarity conditions. The sensor delivers a typical output resolution of 14 bits over a full 360-degree rotation, enabling highly granular angle measurements.
The TLE49SR empowers you with the flexibility to program measurement ranges. Furthermore, it can handle angular speeds exceeding 10,000 rpm with a total angle speed error of just ±3%. The sensor also excels in terms of low output noise, offering a typical RMS noise level of only 0.05 degrees at a 5-Hz filter setting, guaranteeing smooth and consistent angle readings. Data transmission latency is meticulously controlled, with a typical latency of 9.8 µs when utilizing the lowest filter settings.
Intrinsic Stray Field Immunity: A Defining Feature
According to Infineon, the TLE49SR truly sets itself apart with its exceptional intrinsic stray field robustness. This sensor can withstand DC fields ranging from -8 mT to 8 mT and AC fields ranging from -1.25 mT to 1.25 mT. This remarkable resilience allows the sensor to function flawlessly even in environments with strong external magnetic fields, making it a perfect fit for demanding automotive applications.
Propelling Vehicle Digitization Forward
The TLE49SR is a pivotal step towards the future of automotive digitization. Its superior stray field immunity, exceptional intrinsic accuracy, and minimal angle error contribute significantly to this advancement. The sensor is manufactured to meet stringent automotive packaging and safety standards. It comes in a TDSO-8 surface mount package and complies with ISO 26262 as a "safety element out of context."
Partner with BonChip Electronics for Your Automotive Sensor Needs
BonChip Electronics is your one-stop shop for a comprehensive selection of Infineon sensors, including the groundbreaking XENSIV TLE49SR. We offer competitive pricing, exceptional service, and fast delivery times. Contact BonChip Electronics today to explore how the TLE49SR can elevate the performance and precision of your next automotive design project.
