UCC21540: UCC21540 and UCC21530 driver chips belong to the functional safety level

zhixia bai

Prodigy 100 points

Part Number: UCC21540
Other Parts Discussed in Thread: UCC21530,

Hi，all

What are the functional safety levels of UCC21540 and UCC21530 driver chips?

over 1 year ago

0 Sean Cashin over 1 year ago

TI__Genius 17486 points

Hi Zhixia,

The automotive versions of these devices are rated as "Functional Safety Quality-Managed".

However, the updated version to this device is the UCC2155X. It will have several robustness improvements to the UCC21530 and will be lower cost.

Best regards,

Sean

0 zhixia bai over 1 year ago in reply to Sean Cashin

Prodigy 100 points

Hi,Sean

Are UCC21540 and UCC21530 driver chips Class II or Class III in functional safety?

Thanks,

Zhixia Bai

0 Sean Cashin over 1 year ago in reply to zhixia bai

TI__Genius 17486 points

Hi Zhixia,

Those terms are used to guarantee a design's robustness at a system-level. An individual device can be used in a Class II or III functional safety design, but it must be used correctly for the system to meet either of those requirements.

We can only categorize an individual device as 'Compliant', 'Quality-Managed', or 'capable', which indicates the number of certifications that have been completed for an individual part. Compliant indicates the highest amount of testing, quality-managed means that several test have been run and additional testing is available upon request, and capable means that few or no functional safety tests have yet been run on the device.

Here is a link with more information: https://www.ti.com/technologies/functional-safety.html?keyMatch=FUNCTIONAL%20SAFETY%20CAPABLE&usecase=smartsnip

Best regards,

Sean

Power management

Power management forum

UCC21540: UCC21540 and UCC21530 driver chips belong to the functional safety level