We use cookies and similar technologies (also from third parties) to collect your device and browser information for a better understanding on how you use our online offerings. This enables us to optimize and personalize your experience with Infineon and to provide you with additional services and information based on your individual profile. Details are available in our privacy policy.
Privacy Policyand Imprint
View and change cookie settings
Accept
Reject
Announcements

Robots are revolutionizing our lives in many ways. Join our webinar to learn about Infineon’s broad portfolio of robot building blocks.
Click here to register.

Ask the Community

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

AURIX™ Forum Discussions

This widget could not be displayed.
Not applicable
‎Jan 10, 2017 02:39 PM
‎Jan 10, 2017 02:39 PM

What is the effect of 100 microseconds(us) transient in a automobile battery?

A typical embedded system, let's say Transmission or Power Train Electronic Control Unit (ECU) is powered by automobile Battery.

Battery voltage is at 12 Volts. If the battery voltage drops to 0 Volts in 5 us and stays at 0 V for 100 us, then rises back to 12V in 5 us, what impact will this have on Microcontroller memories, different microcontrollers inputs like Analog, Digital, PWM, etc. And different outputs like Digital, PWM etc.

Will the contents of I/O and memories like SRAM, Program Flash, Data Flash change due to this transient?

The microcontroller on the ECU is Infineon Aurix Tricore TC29x.
0 Likes
Subscribe
1 Reply
User12775
Level 5
Level 5
First solution authored First like received
‎Feb 06, 2017 09:14 AM
‎Feb 06, 2017 09:14 AM

It is the reason that your hardware engineer put big capacitors on your board.

The big capacitors will keep your board powered during the black period.

If the capacitors are not big enough, your board will power down and start a power on reset when the voltage arises again.
0 Likes
This widget could not be displayed.