2 Mar
2016
2 Mar
'16
3:59 p.m.
--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Wed, Mar 2, 2016 at 1:43 PM, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
argh - the bq2419x series only provides up to 1.5A @ 5V in USB-OTG mode, not 3A. which rules it out. it's otherwise perfect, damnit.
ok, i thought about this, and i reckon that it'd be ok to do this:
* use the USB-OTG "boost mode" to provide USB-OTG power to the EOMA68 CPU Card [only] * put the SYS-V output through to the main PCB1, where it will do boost conversion to 5.0V for USB ICs. SYS-V output could go directly into the step-up converter for the LCD backlight, and also directly into the 3.3v regulator.
so... the spec doesn't change, just the implementation of PCB1.
l.