TPS3813-Q1: Any watchdog to support ASIL-C system requirement

Aki Li

Part Number: TPS3813-Q1

Tool/software:

Customer was looking for a watchdog device to monitor 5V rail at the same time. They are required to achieve ASIL-C function safety requirement in their traction inverter system.

Could you please help check which part is the best proposal? They expected to be easy to use.

over 1 year ago

0 Joshua Garcia over 1 year ago

TI__Genius 11630 points

Hi Aki,

Given this is for an ASIL-C system I assume you need a window watchdog? What is the SOP of this project? Do you need both overvoltage and undervoltage monitoring for the 5V rail? Also could you please provide the desired window open and close timings?

Thanks,
Joshua

0 Aki Li over 1 year ago in reply to Joshua Garcia

TI__Genius 9755 points

Hi Joshua,

They did not have specific requirement for window watchdog. It is better to have both overvoltage and undervoltage monitoring.

0 Joshua Garcia over 1 year ago in reply to Aki Li

TI__Genius 11630 points

Hi Aki,

I have sent over an email to get further understanding of your customer use case to better provide a recommendation.

Thanks,
Joshua

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TPS3813-Q1: Any watchdog to support ASIL-C system requirement