STM CircleOS forum / primer2 power

jtfoote · 2009-07-14 05:43:42

How much current is available from the extension VCC2V8 connector on the Premier2? I've been looking all over and can't find any specs at all.

The L6928D regulator is specified to deliver 800 ma, and the backlight is on a different regulator, so how much does the board use and how much is left over? I only need 60 ma continuous and 150 ma peak so I'm guessing that won't stress it, but is there a way to be sure?

-Jon Foote

ShadowPhoenix · 2009-07-17 15:10:14

"This source could provide approximatively 100mA to the extension board."

http://www.google.com/url?sa=t&sour … OyoIRW6zuQ

Francis · 2009-07-21 06:42:02

I made some measurement, and it seems that 100mA is a max value on the extension connector. The regulator would accept more current (but it does not like the noise at the input voltage), but the inductor would be saturated.

# 1 2009-07-14 05:43:42 primer2 power

primer2 power

# 2 2009-07-17 15:10:14 primer2 power

Re: primer2 power

# 3 2009-07-21 06:42:02 primer2 power

Re: primer2 power

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