Mardekai писал(а):
IOD писал(а):
Должно быть 3v.
Не должно. В норме около 1.35в.
Даташиты и другие темы надо бы смотреть, прежде чем писать.
По даташиту
http://www.ti.com/lit/ds/symlink/bq24735.pdfACOK:
AC adapter detection open-drain output. It is pulled HIGH to external pullup supply rail by external pullup resistor when voltage on ACDET pin is
between 2.4 V and 3.15 V, and voltage on VCC is above UVLO and voltage on VCC pin is 275 mV above voltage on SRN pin, indicating a valid adapter is present to start charge. If any one of the above conditions cannot be met, it is pulled LOW to GND by internal MOSFET. Connect a 10-kΩ pullup resistor from ACOK to the pullup supply rail.
В другой теме по этой плате
viewtopic.php?f=40&t=667555)
ACOK-3В