Description:
●The linear Hall IC TLE4998S8D has been designed specifically to meet the requirements of highly accurate angle and position detection. The sensor provides a digital SENT signal based on the SAE J2716 standard, which consists of a sequence of pulses. Each transmission consists of multiple data nibbles containing the Hall value, the temperature and status information of the sensor. The output stage is an open-drain driver pulling the output pin to low only. Therefore, the high level needs to be obtained by an external pull-up resistor. This output type has the advantage that the receiver may use an even lower supply voltage (e.g. 3.3 V). In this case the pull-up resistor must be connected to the given receiver supply.
●Summary of Features:
● Integration of two individual Linear Hall sensor IC’s with Single Edge Nibble Transmission (SENT) open-drain
● output signal (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:
● SENT unit time
● Magnetic range, sensitivity (gain), offset, and polarity of the output slope
● Filter 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
