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Programmable Dual Channel Linear Hall Sensor with PSI5 Interface

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TLE4999I3XALA1 General Description

The XENSIV TLE4999I3 provides all means that are necessary to fulfill the state-of-the-art functional safety requirements on system level. It is developed in full compliance with ISO 26262. The device provides high redundancy on one chip by means of two sensor elements included within one monolithic silicon design. The two diverse Hall sensor elements (main” and sub”) have internally separated signal paths within the chip. A plausibility check secures the high diagnostic coverage required for premium functional safety compliant systems up to ASIL-D. The TLE4999I3 supply architecture splits up into a digital supply and two analog supply circuits. This basic supply set-up separates the fast switching digital part from the noise-sensitive analog circuits. Two analog supply domains are the basis to ensure a good separation of the internal voltage regulation for the main and sub Hall sensor elements. Following the signal part, one finds that each sensor element has its own analog - digital converter, digital signal processor (DSP) and memory area to ensure the maximum independency. The two DSPs use their individual temperature-, stress- and Hall signal information of the related sensor cell as well as the compensation parameters stored in the EEPROM to calculate two independent output values. The implemented PSI5 communication interface supports a bitrate upto to 189 Kboud. Combining both sensor values within one output signal using the PSI5 v 2.1 protocol enables for a frame time of 500 us for both sensor data. The synchronous digital PSI5-compatible interface includes a common 7-bit checksum. Several crosschecks of the TLE4999I3 on system level can be implemented by external safety mechanisms. This way it is possible to realize functional safety compliant systems up to ASIL D.

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Key Features

  • Two highly accurate redundant Hall measurement channels (main and sub) integrated on one chip
  • Developed compliant to
  • ISO 26262
  • for safety requirements rated up to ASIL D
  • PSI5 v2.1-compatible interface in synchronous mode with high speed P10P-400/4H protocol
  • Bi-directional interface for programming via fast SICI interface
  • 13bit output signals, protected by CRC and rolling counters
  • Digital temperature and stress compensation
  • 3-pin leaded package for mounting in PCB-less modules
  • Operating junction temperature range -40°C to 150°C
  • Main and sub channel programmable independently in EEPROM
  • 16bit user-configurable ID in EEPROM
  • Supply voltage 5.5 to 7 V
Infineon Technologies Corporation Original Stock


  • Brake and acceleration Pedals
  • Valve or flap position sensing
  • Steering Torque sensing
  • High-Speed Applications
  • Automotive and Industrial Safety
  • any other kind of precise and fast linear measurement application


RHoS yes PBFree yes
HalogenFree yes


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

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  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


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TLE4999I3XALA1 Datasheet PDF

Preliminary Specification TLE4999I3XALA1 PDF Download

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Buying Guide

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