[Arm-netbook] Sleep (stand by) power consumption of A10/A13 device?

[cnxsoft]

On 13/07/2012 12:55, krasi gichev wrote:
> I am looking into applying A10/A13 into automotive (entertaiment) 
> application. Is anybody aware how low the current consumption can go 
> in mode where OS is sleeping? I mean not powered off, but booted, 
> ready to wake up in several seconds, but doing nothing else beside 
> waiting for GPIO (button) wake up command? Something like sleep mode 
> of the android tablets.
> My best estimation is based on specs of one tablet that says that it 
> has stand by time of 18 days (with 3200mAh battery). This resolves to 
> around 7mA stand by consumption (this should be A10 + AXP209 total).
> Any input on this?
>
>
In http://rhombus-tech.net/allwinner_a10/:

|  u-boot idle, 0.23A at 5V = 1.15W
  Android idle. 0.34A at 5V = 1.7W
  Android busy navigating some web page: 0.55A at 5V = 2.75W
  Android 2.3.3 + youtube + video 720p = ~4.6W
  Android 2.3.3 + SATA HDD + video 1280p = ~7.3W
  Ubuntu 12.04 (headless) + SATA HDD + deluge (torrent client) +|minidlna (dlna server) = ~5.0W-6.5W (sometimes max 7.8W)

In the car is powered off, you ought to power off your A10/A13 device as 
well or it could drain the batteries if the car is parked for some time. 
I've read they have to do that for automotive infotainment system, so 
they have to optimize the boot time.
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