Product brief

TLE4999I3

XENSIV™ magnetic position sensors – world’s first fully ISO 26262

compliant linear Hall sensor for high precision applications

Infineon’s new TLE4999I3 is a dual channel linear Hall sensor designed to meet the

requirements of safety critical automotive and industrial applications.

It is developed in full compliance with ISO 26262 by means of two sensor elements included

within one monolithic silicon design. In order to ensure diversity, the sensor cells are designed in a

complementary way. Their signals follow two independent analog paths. Each signal path has its

own digital signal processing unit to ensure maximum independency – redundancy, respectively.

Our XENSIV™ TLE4999I3 provides all measures that are necessary to fulfill the state-of-the-art

safety requirements on system level and furthermore enables for ASIL-D system developments

› Separate analog supply domains controlled by two regulators feed independent biasing

units for the main and sub Hall sensor elements

› Two analog-digital converters ensure the separation of the sensor signals

› The integrated digital signal processors use dedicated temperature and stress parame-

ters-stored in separated EEPROM areas – for compensation of their assigned Hall sensor

signals to minimize these effects

› Thedigitalprotocolcontainsacommon7-bitchecksumensuringerror-freedatatransmission

Simplified block diagram TLE4999I3

› Fully ISO 26262 compliant, supports

ASIL-D systems

› < 2 % sensitivity drift, < 100 µT offset

drift over temperature and life time

specification

› Integrated digital temperature- and

stress-compensation

› Fast communication protocol com-

plies with PSI5 v2.1 with a bit rate of

189 kbps

› High diagnostic coverage,

ISO 26262-compliancy and dual

sensor cell integration enable for

ASIL-D system development

› PSI5 interface saves wiring and

improves EMC behavior

› SSO-3packageenablesforflexiblead-

aptation outside printed circuit boards

› Automotivesafetycriticalapplications

› Linear movement position sensing

– Electric Power Steering (EPS)

– Pedal position

– Electrical throttle control

› Industrial safety applications

Key features

Key benefits

Key applications

www.infineon.com/linear-hall

CBUF

Sub ADC

Main ADC

Supply

Sub analog regulator

Digital regulator

Main analog regulator

PSI5

output

Sub bias

ROM 2

ROM 1

Sub T-sensing

element

Sub S-sensing

element

A

Sub

Hall

DSP 2

D

A

DSP 1

D

GND

PSI5

Main bias

EEPROM

Interface

Main T-sensing

element

Main S-sensing

element

Main

Hall