[Arm-netbook] EOMA68 Power Specifications

[Luke Kenneth Casson Leighton]

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crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68


On Tue, Aug 30, 2016 at 6:51 PM, Joseph Honold <mozzwald at gmail.com> wrote:
> I'm reading the eoma spec at elinux and there is limited information
> regarding the power requirements. It states "a maximum of 3.5 watts should
> be respected" and "Type II Cards should not exceed an average of 3.5 watts
> power consumption" and "must adjust accordingly and stick within the 4 watt
> heat dissipation budget".

 those are practical guidelines.  if you want to do an EOMA68 module
that requires 4 to 4.5 watts you should look at flooding it with
thermal gel and sealing it.  3.5 to 4.0 watts you can get away with
using the exact same graphite paper that's used in mobile phones.


> Is there a minimum requirement for supply current that must be available to
> the cpu card from a housing/device/socket for compatibility with multiple
> cpu cards (3.5 or 4 watts)?

 there is no minimum requirement.  the maximum requirement is 1.0 A @
5.0V.  above that, housings are REQUIRED to CUT ALL POWER WITHOUT
WARNING, for safety reasons.

> What is the A20 cpu card power consumption (average/peak)?

 peak is around 3.5 watts.

l.