سنسور و مبدل سنسور موقعیت اندازه‌گیری زاویه و موقعیت خطی

Product Attributes

Introduction

The A31315 3DMAG™ position sensor is designed for on-axis and off-axis rotary as well as linear stroke position measurement in automotive, industrial, and consumer applications. This sensor integrates vertical and planar Hall-effect elements with precision temperature-compensating circuitry to detect two out of three magnetic field components (X, Y, and Z). Using configurable signal processing, linearization, and angle calculation allows the A31315 to accurately resolve the absolute rotary (full 360° and short-stroke <360°) or linear position of a moving magnetic target. The A31315 features ratiometric analog, PWM, or SENT (SAE J2716) interface options to output the angle between the two factory-selected axes or the field from a single axis. In addition, the SENT interface provides the option to output the field measurement from both channels. On-chip EEPROM technology, capable of supporting up to 100 write cycles, is integrated for flexible programming of configuration and calibration parameters and includes 92 bits provided for customer device identification purposes. The A31315 contains on-chip diagnostic features required for high reliability automotive applications, including monitors of both internal and external fault conditions. Developed in accordance with ISO 26262 as a hardware safety element out of context (SEooC) with ASIL B (single die) and ASIL D (dual die) capability for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet. The A31315 is available as a single die in the SOIC-8 package and stacked dual die in the TSSOP-14 package for applications that require full redundancy.

Features

• 3D magnetic sensor enables flexible mechanical integration for contactless linear and rotary position applications
• Configurable signal path processing and on-chip angle calculation for accurate 360° and short stroke (<360°) rotary applications
• Multiple programmable linearization options for maximum measurement accuracy:
  • Piecewise-linear and binning modes
  • Up to 33-point fixed position
  • Up to 22-point programmable positions
• Ratiometric Analog, PWM, or SENT (SAE J2716) output formats
• Integrated IC diagnostics for high reliability
• Developed in accordance with ISO 26262 requirements for hardware product development for use in safety-critical applications
• Supports operation in harsh conditions, required for automotive and industrial applications
  • AEC-Q100 Grade 0 qualified
  • -40℃ to 150℃ temperature range
  • 4.5 to 5.5 V supply operating range
  • Over- and reverse-voltage protection
• Multiple package options available:
  • Single die surface mount (SOIC-8)
  • Dual (full redundant) stacked die surface mount (TSSOP-14)

Applications

• Contact-less linear and rotary position sensor
• Throttle, valve, and cylinder position sensor
• Pedal position sensor
• Transmission position (fork/clutch, shifter, park lock)