5.25 V _ ... 2A Power USB Adapter
#1
Is it safe to use 5.25V with 2A for Pine64+ ?
A64 - DB - 2G - Rev B
2016-03-21
#2
(02-07-2017, 02:47 PM)Guest2000 Wrote: Is it safe to use 5.25V with 2A for Pine64+ ?
A64 - DB - 2G - Rev B
2016-03-21

5.25v would be pushing it...  I would not.

5.1v  @2.5A
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

( I regret that I am not able to respond to personal messages;  let's meet on irc! )
#3
(02-07-2017, 02:47 PM)Guest2000 Wrote: Is it safe to use 5.25V with 2A for Pine64+ ?
A64 - DB - 2G - Rev B
2016-03-21

I routinely run my pine64s with 5.25v 4A power supplies (adjustable quad-USB 12v - 5v power supplies) to overcome voltage sag over the microUSB lead and connectors. It should not be an issue running the pine64 at this voltage as the PMU is spec'd with a maximum of 7v. Just be aware that your 5v and USB voltages may be a bit higher than 5.0v if that matters to you! 5.28v at the power supply drops to 5.22v at the pine64s USB ports and 5v pin (unloaded, 5.19 with a USB key plugged in) with a good microUSB power lead, and this is within the USB 5v power spec (5v + 0.25, -0.55/0.6 [depending on version]). This is with the DC/BAT jumper in the DC IN position! Wink 

I take it you want to use something like the 5v (5.25v) power supplies that Adafruit sell for the Raspberry Pi?
#4
i have no idea if it is safe, but for the past month i have been using one of these
https://www.amazon.com/gp/product/B00D7C...UTF8&psc=1
with one of these
https://www.amazon.com/gp/product/B01MQG...UTF8&psc=1
and my pine64 has not burned out yet.
i have the buck converter dialed in at 5.25V and it is a continuous 3A output. i am using this on my older board [7 months useage] which had shown signs of power related boot problems and those have stopped happening as often.
#5
(02-09-2017, 01:55 AM)dkryder Wrote: i have no idea if it is safe, but for the past month i have been using one of these
https://www.amazon.com/gp/product/B00D7C...UTF8&psc=1
with one of these
https://www.amazon.com/gp/product/B01MQG...UTF8&psc=1
and my pine64 has not burned out yet.
i have the buck converter dialed in at 5.25V and it is a continuous 3A output. i am using this on my older board [7 months useage] which had shown signs of power related boot problems and those have stopped happening as often.

5.25V should be safe.


Possibly Related Threads…
Thread Author Replies Views Last Post
  AC Adapter Which One? Pine64 A64 DB V1.1 2GB REV B (Year 2016) databaseprogrammer 0 46 06-08-2021, 08:26 AM
Last Post: databaseprogrammer
  Pinecil power Erincka 0 353 03-21-2021, 11:52 AM
Last Post: Erincka
  Session fails to fully start after unexpected power off during initial upgrade Avron 0 291 03-18-2021, 11:52 AM
Last Post: Avron
  Power button sdziuba 1 342 03-14-2021, 09:05 AM
Last Post: xalius
  PBP won't power. Charge light solid orange/red but turns off. cmicallef 15 2,024 03-12-2021, 07:08 PM
Last Post: cmicallef
  howto power hdd via usb3 on rockpro64 hanscees 2 1,794 06-17-2020, 02:00 AM
Last Post: hanscees
  USB C hub and Ethernet adapter jaysistar 3 2,246 01-20-2020, 04:07 PM
Last Post: belfastraven
  User Screen Black After Changing Power Settings 0b51Gekko 2 1,708 07-03-2019, 07:53 AM
Last Post: 0b51Gekko
  eMMC card on adapter Malmgren 8 5,278 03-20-2018, 11:14 AM
Last Post: Malmgren
  HDMI-VGA adapter. Blank screen. trumad 10 8,261 03-05-2017, 03:17 AM
Last Post: pfeerick

Forum Jump:


Users browsing this thread: 1 Guest(s)