PTMAG5170DA2EPWRQ1中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? AEC-Q100 qualified for automotive applications:

– Temperature grade 0: –40°C to 150°C

? High-precision linear 3D Hall-effect sensor to

optimize position sensing speed and accuracy:

– Conversion rate for single axis: 20 kSPS

? Functional Safety-Compliant targeted:

– Developed for functional safety applications

– Documentation available to aid ISO 26262

system design up to ASIL D will be available

upon production release

? 10-MHz serial peripheral interface (SPI) with cyclic

redundancy check (CRC)

? Built-in temperature sensor with < ±3°C error

? Independently selectable X, Y, and Z ranges:

– TMAG5170DA1-Q1: ±25, ±50, ±100 mT

– TMAG5170DA2-Q1: ±75, ±150, ±300 mT

? Autonomous wake-up and sleep mode for

threshold detection consuming only 1.5 μA

? ALERT function to initiate sensor conversion or

indicate conversion complete

? Integrated temperature compensation for multiple

magnet types

? Integrated angle CORDIC calculation with gain

and offset adjustment

? Supply voltage range: 2.3 V to 5.5 V

2 Applications

? Steering column control

? Steering wheel control

? Shifter systems

? Wiper modules

? Actuators

3 Description

The TMAG5170D-Q1 is a dual-die high-precision

linear 3D Hall-effect sensor designed for a wide range

of automotive and industrial applications. The high

level of integration offers flexibility and accuracy in

a variety of position sensing systems. This device

features 3 independent Hall sensors at X, Y, and Z

axes.

A precision signal-chain along with an integrated 12-

bit ADC enables high accuracy and low drift magnetic

field measurements while supporting a sampling of

up to 20 kSPS. On-chip temperature sensor data is

available for system-level drift compensation.

Integrated angle calculation engine (CORDIC)

provides full 360° angular position information for both

on-axis and off-axis angle measurement topologies.

The angle calculation is performed using two

user-selected magnetic axes. The device features

magnetic gain and offset correction to mitigate the

impact of system mechanical error sources.

The TMAG5170D-Q1 can be configured through

the SPI to enable any combination of magnetic

axes and temperature measurements. Multiple sensor

conversion schemes and SPI read frames help

optimize throughput and accuracy. A dedicated

ALERT pin can act as a system interrupt during low

power wake-up and sleep mode, and can also be

used by a microcontroller to trigger a new sensor

conversion.