TLE4998C8D - Infineon Technologies

Overview

XENSIV(TM) - Linear Hall sensor featuring two-point calibration of magnetic transfer function without iteration steps

The linear Hall IC TLE4998C8D has been designed specifically to meet the requirements of highly accurate angle and position detection. The sensor provides a digital SPC (Short PWM Code) signal, based on the standardized SENT (Single Edge Nibble Transmission, SAE J2716) protocol. The SPC protocol allows transmissions initiated by the ECU.

Two further operation modes are available:

• “range selection” for dynamically switching of the measurement range during operation

• “ID selection” to build a bus system with up to 4 IC’s on a single output line and a common supply, which can be individually accessed by the ECU

Summary of Features

Integration of two individual programmable Linear Hall sensor IC’s with SPC (Short PWM Code) protocol with enhanced interface features based on SENT (Single Edge Nibble Transmission, defined by SAE J2716)
20-bit Digital Signal Processing (DSP)
Digital temperature and stress compensation
16-bit overall resolution
Operating automotive temperature range -40°C to 125°C
Minimal drift of output signal over temperature and lifetime
Programmable parameters stored in EEPROM with single-bit error correction:
- SPC protocol modes: synchronous transmission, dynamic range selection, ID selection mode
- Magnetic range, sensitivity (gain), offset, and polarity of the output slope
- Bandwidth
- Clamping levels
- Customer temperature compensation coefficients for all common magnets
Re-programmable until memory lock
Supply voltage 4.5-5.5 V (4.1-16 V extended range)
Configurable magnetic range: ±50 mT, ±100 mT, or ±200 mT
Reverse-polarity and overvoltage protection for all pins
Output short-circuit protection
On-board diagnostics (overvoltage, EEPROM error)
Output of internal magnetic field values and temperature
Programming and operation of multiple sensors with common power supply
Two-point calibration of magnetic transfer function without iteration steps

Potential Applications

Robust replacement of potentiometers: No mechanical abrasion, resistant to humidity, temperature, pollution and vibration
Linear and angular position sensing in automotive and industrial applications with highest accuracy requirements
Suited for safety applications such as pedal position, throttle position and steering torque sensing

Productive Programmer @ eHitex

SPEED FLASH-TLE4998x

ED FLASH Production Programmer
SPEED FLASH is a proven universal production programmer. The system was designed to be easily configurable for the programming of different targets. A wide range of interfacing techniques to different targets can be used, depending on the requirements of the sensor or microcontroller to be programmed.

Productive Programmer TLE4998x Family

Productive Programmer @ CGS

ISCM-SENT Infineon TLE4998x

The CompactRIO ISCM-SENT (Infineon) module developed by CGS can sequentially calibrate up to 2 Infineon TLE4998x sensors with 2 channels each. In addition, the module can read the SENT signals in parallel on the 4 channels.