TLE4998S8数据手册传感器变送器的磁性传感器-线性罗盘（IC）规格书PDF

描述 Description

The linear Hall IC TLE4998S8 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.

特性 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


优势:

应用 Application

• 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
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简介

TLE4998S8属于传感器变送器的磁性传感器-线性罗盘（IC）。由制造生产的TLE4998S8磁性传感器 - 线性，罗盘（IC）该系列产品可用于将磁场强度作为一个可变数量进行测量，而相比之下，类似产品仅检测是否存在强度超过某个限值的磁场。常见的应用包括测量地球磁场，以类似于传统罗盘的方式进行定向，市面上的一些器件允许以相对于磁场的物理方向直接读取测量值。