Maximum power budget (consumption) at MAN-N power mode and instant power voltage drop specification

  1. About Jetson TX2 module MAX-N power mode,How much is maximum power budget (consumption)?
  2. The Jetson TX2 module input voltage range is DC5.5V~19.6V.When input power volatage drops to 10V from 12V instantly,the opearation system will shut down or reboot.But,When power drop is slowly,the sysem works normally.About instant power voltage drop,could you provide this specification?
  3. When system trigger VIN_PWR_BAD#,what action will be implement by module?
  4. We can find TX2i module life time information on “NVIDIA Jetson Linux Driver Package Developer Guide”.But, it can’t have TX2 module life time information.Could you provide TX2 module life time information on MAX-N power mode?

Sorry,I never saw “sudden power loss spec” on NVIDIA Jetson TX2/TX2i OEM Product Design Guide.The design guide only mentions “Uncontrolled Power Removal Case”.Do you mean this specification?
I uses TX2 EVM to test power drop issue.It also had the same fail phenomenon when I adjusted power to 10V from 12V instantly.
The figure 7 of OEM product design guide indicated VIN_PWR_BAD# must pull low when power drop about 20%.But,power down to 10V from 12V is only dropped 16%.Why does system shut down?
When I adjusted power to 10V from 12V slowly,the system works normally.Why doesn’t it shut down?
I doubt this power drop issue is related drop period.

Yes, it is the chapter of power removal case. For the reaction time of power removal, it is a value depends on board design, you can refer to figure 13, Power Discharge, the vin_pwr_bad# response time depends the RC circuit in the figure.

1.About question 1,the TX2 module bottom label shown input is 5.5V/7.2A~19.6V/2A.Does it mean maximum power consumption is 39.6W at MAX-N power mode?
2.About TX2 life time part,your mentioned information is not for MAN-N power mode.Could you provide TX2 life time information under MAX-N power mode?

Who can answer my question?

As previously said, MAXN is just a power budget mode, not a fixed power value. the real power consumption in MAXN mode depends on use case and thermal solution etc., the label info only indicates the design limit for module. And so there is no lifetime for MAXN, 5 years operating life is a general value for all kinds of usage.

I am using the Nvidia jetson TX2 developer kit.
Trumany mentioned “And so there is no lifetime for MAXN, 5 years operating life is a general value for all kinds of usage.”, but I have seen the MAXN is the one of these power management modes.
https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide%2Fpower_management_tx2_32.html%23wwpID0E01N0HA
Do you mean that the MAXN mode is not a general usage mode?
Is the 5 years operation life for the others?

No, I mean there is no dedicated lifetime for MAXN mode, it is same 5 years to others.

Why is MAX N mode lifetime the same with others when working clock rate and power consumption all are more than others?

So if the power consumption of the MAXN mode always exceeds the MAX-P mode, we can suppose the operation life is less than 5 years.
Is this correct?

In simple terms, it is 5 years operating lifetime if the operating temperature doesn’t exceed the range in the datasheet, no matter the mode is MAXN or MAXP.

You have said there is no dedicated lifetime for MAXN mode…
Whatever, does the TDP of Nvidia jetson TX2 developer kit follow the TDP DG?
If the developer kit follow TDP DG, the TDP is 15W.
Is there any bad effect on the Nvidia jetson TX2 developer kit when the power consumption exceeds 15W?

As said “if the operating temperature doesn’t exceed the range in the datasheet”, that will be OK to lifetime.

  1. Power/Thermal design is based on TX2 TDP=15W at early stage. It can keep operating temperature range under spec, so it will be OK for Lifetime 5 years for MAXP/MAXQ.
    But, the MAXN mode has no power budget, we indeed can’t constraint End user’s about the use case . So can we guarantee the lifetime 5 years with MAXN to customers? Thanks!

Yes, we support 24/7 operation with 5 year of operating life provided if the operating temperature doesn’t exceed the range in the datasheet.