A1339中文资料Angle Sensor IC with Integrated Diagnostics数据手册Allegro规格书

描述 Description

The A1339 is a 360° angle sensor IC that provides contactless, low latency, high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology. It has a system-onchip (SoC) architecture that includes: a CVH front end, digital signal processing, and motor commutation (UVW) or encoder outputs (A, B, I). It also includes on-chip EEPROM technology, capable of supporting up to 100 read/write cycles, for flexible end-of-line programming of calibration parameters. The A1339 is ideal for automotive applications requiring 0° to 360° angle measurements, such as electronic power steering (EPS), rotary PRNDLs, and throttle systems.

The A1339 supports customer integration into safety-critical applications.

The A1339 is available in a dual-die 24-pin eTSSOP and a single-die 14-pin TSSOP package. The packages are lead (Pb) free with 100% matte-tin leadframe plating.

A1339 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context. The single die was designed to meet ASIL B capability, and the dual die was designed to meet ASIL D capability, for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet. 

特性 Features

• Contactless 0° to 360° angle sensor IC, for angular position, rotational speed, and direction measurement
• Capable of sensing magnet rotational speeds targeting 12b effective resolution with 900 G field
• Developed in accordance with ISO 26262:2011 requirements for hardware product development for use in safety-critical applications (pending assessment)
• On-chip diagnostics include logic built-in self-test (LBIST), signal path diagnostics, and watchdogs to support safety-critical applications
• On-chip EEPROM for storing factory and customer calibration parameters
• Single-bit error correction, dual-bit error detection through the use of error correction control (ECC)
• Supports harsh operating conditions required for automotive and industrial applications, including direct connection to 12 V battery
• Operating temperature range from –40°C to 150°C
• Can support ISO 7637-2 Pulse 5b up to 39 V
• Low power mode and turns counter enable tracking of motor position even when vehicle is turned off
• ABI/UVW output provides high resolution, low latency, and PWM for initial position
• Output resolution on ABI and UVW are selectable
• Multiple programming / configuration formats supported
• The system can be completely controlled and programmed over SPI, including EEPROM writes
• Stacked dual die construction to improve die-to-die matching for systems that require redundant sensors
• Reduces magnet misalignment impact on die-to-die matching for a given magnet diameter, relative to “side-by-side” dual die orientation

简介

A1339属于传感器变送器的位置传感器-角度、线性位置测量。由制造生产的A1339位置传感器 - 角度、线性位置测量角度和线性位置测量传感器使用电容、霍尔效应、电感、LVDT、LVIT、磁阻、光学或电阻技术，来确定传感器的致动器相对于参考点的位置。角度位置传感器可根据有限或连续旋转范围内的电气或机械范围进行区分。线性位置传感器可根据 0 到 400 英寸的范围进行区分。其他考虑因素包括致动器类型、输出类型和信号、安装类型和线性度。