EVK-M8GZOE User Guide
UBX-16030132 - R04
Measuring current consumption (ZOE-M8G only)
Page 16 of 30
Early Production Information
5
Measuring current consumption (ZOE-M8G
only)
5.1
Basic measurements with the shunt resistors
Figure 4: EVK-M8GZOE board measuring the ZOE-M8G VCC current
On the EVK-M8GZOE there is a 1.8 V LDO supplying the ZOE-M8G main supply (
VCC
). At the input
of that LDO is a 1
Ω
current measurement shunt resistor placed in between J7 pin 1 and pin 2, see
Figure 4.
And the V_BCKP for ZOE-M8G is supplied by a super capacitor which gets charged to 3.3 V. In
between the super capacitor and
V_BCKP
there is a 100
Ω
current measurement shunt resistor
placed in between J6 pin 1 and pin 2.
