TLE4998S8D

板机接口霍耳效应/磁性传感器 POSITION&CURRENT; SENSORS

Description:

The linear Hall IC 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:

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Integration of two individual Linear Hall sensor IC’s with Single Edge Nibble Transmission SENT open-drain

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output signal SAE J2716

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20-bit Digital Signal Processing DSP

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Digital temperature and stress compensation

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16-bit overall resolution

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Operating automotive temperature range -40°C to 125°C

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Minimal drift of output signal over temperature and lifetime

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Programmable parameters stored in EEPROM with single-bit error correction:

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SENT unit time

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Magnetic range, sensitivity gain, offset, and polarity of the output slope

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Filter Bandwidth

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Clamping levels

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Customer temperature compensation coefficients for all common magnets

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Re-programmable until memory lock

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Supply voltage 4.5-5.5 V 4.1-16 V extended range

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Configurable magnetic range: ±50 mT, ±100 mT, or ±200 mT

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Reverse-polarity and overvoltage protection for all pins

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Output short-circuit protection

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On-board diagnostics overvoltage, EEPROM error

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Output of internal magnetic field values and temperature

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Programming and operation of multiple sensors with common power supply

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Two-point calibration of magnetic transfer function without iteration steps