[Arm-netbook] Laptop PCB schematics

[Internet]

I took another look and i am pretty satisfied with the results ;). However, a few things still need attention (i wrote it down on rhombus-tech.net)

Julius

On Feb 20, 2017, 09:54, at 09:54, Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
>ok turns out - from what i am reading of the datasheets - that the
>bq24193
>can cope with running from 3.3v, it looks like it doesn't mind: the
>limit
>of the I2C and other pins is 6V.
>
>the bq27542 is a different matter (i thought it was 1.8v, it's not:
>it's
>2.5v).  it has its own 2.5v LDO on-board but the maximum input voltage
>is
>2.5v for its I2C and HDQ (status / IRQ pin).  sooo what i've done is,
>connect the 2.5v output (REG25) to the level-shifter, and the other
>side to
>VREFTTL.
>
>i updated the schematics pdfs.
>
>l.
>
>
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