TLE5012B
Functional Description
User’s Manual 13 Rev. 1.2, 2018-02
2.2.5 Interfaces
Bi-directional communication with the TLE5012B is enabled by a three-wire SSC interface. In parallel to the SSC
interface, one secondary interface can be selected, which is available on the IFA, IFB, IFC pins:
•PWM
• Incremental Interface
• Hall Switch Mode
• Short PWM Code
By using pre-configured derivates (see Chapter 7), the TLE5012B can also be operated with the secondary
interface only, without SSC communication.
2.2.6 Safety Features
The TLE5012B offers a multiplicity of safety features to support the Safety Integrity Level (SIL). Infineon’s sensors
that are intended for this purpose are identified by the following logo:
Figure 2-3 PRO-SIL
TM
Logo
Disclaimer
PRO-SIL™ is a Registered Trademark of Infineon Technologies AG.
The PRO-SIL™ Trademark designates Infineon products which contain SIL Supporting Features.
SIL Supporting Features are intended to support the overall System Design to reach the desired SIL (according
to IEC61508) or A-SIL (according to ISO26262) level for the Safety System with high efficiency.
SIL respectively A-SIL certification for such a System has to be reached on system level by the System
Responsible at an accredited Certification Authority.
SIL stands for Safety Integrity Level (according to IEC 61508)
A-SIL stands for Automotive-Safety Integrity Level (according to ISO 26262)
Safety features are:
• Test vectors switchable to ADC input (activated via SSC interface)
• Inversion or combination of filter input streams (activated via SSC interface)
• Data transmission check via 8-bit Cyclic Redundancy Check (CRC) for SSC communcation and 4-bit CRC
nibble for SPC interface
• Built-in Self-test (BIST) routines for ISM, CORDIC, CCU, ADCs performed at startup
• Two independent active interfaces possible
• Overvoltage and undervoltage detection
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