The TLE9954 Safety Frame is designed to assist customers in achieving functional safety requirements based on the TLE9954 platform. The Safety Frame is highly scalable and can be configured and redeveloped according to different customer project requirements, ultimately meeting the customers' functional safety requirements.

The TLE9954 Safety Frame is used to implement the software safety mechanisms of the TLE9954, including the testing of internal MCU modules and the driving of hardware safety mechanisms.

The TLE9954 Safety Frame can be applied to controllers that require functional safety levels.

For example:

Ø  Brushed DC Motors

Ø  Brushless DC Motors

Ø  Automotive Cybersecurity

By integrating the Safety Frame into the control based on TLE9954, it is possible to meet the ISO 26262 ASIL-D level requirements.

Currently, the electronic and electrical architecture of automobiles is becoming increasingly complex, and the safety requirements for automotive electronics are also rising. To meet the safety requirements of automobiles, functional safety is gaining more attention. When it comes to functional safety, the first thing that comes to mind is the functional safety standard ISO 26262. In particular, ISO 26262-5(2018) Clause 8 introduces two metrics: Single-point fault metric (single-point fault metric) and Latent-fault metric (latent fault metric). Depending on the required ASIL level, the single-point fault metric and latent fault metric must meet the corresponding levels.

For microcontrollers (MCU, referred to as MCU below), within the electronic and electrical system, they are designed and developed as SEooC (safety element out of context). To meet the aforementioned metric requirements, MCUs need to implement corresponding safety mechanisms. These safety mechanisms can be allocated to both hardware and software modules. The Safety Frame for MCUs is the implementation of safety mechanisms allocated to software.

Ø  Can be integrated as a complex driver into AUTOSAR .

Ø  Can be integrated into non-AUTOSAR software architectures.

Ø Safety Frame has internal program flow monitoring.

Ø  High scalability: Each module can be configured to meet the application requirements of different customers.

Realized functional modules:

To meet the diverse project requirements of customers and enhance the scalability of the Safety Frame, the TLE9954 Safety Frame has implemented the configurability of each module and has developed a configuration tool for the Safety Frame. Customers can complete the configuration of various modules of the Safety Frame using the configuration tool according to different needs. They can generate configuration code files, and integrate the generated configuration files into the project.

The following are the deliverables of the Infineon TLE9954 functional safety product in the development process. The requirements document, integration manual, and test-related documents can be provided to customers as product deliverables. Design-related documents can be further discussed with us if needed.

Click to download the product manual