Measuring Current Consumption; Basic Measurements With The Shunt Resistors - u-blox EVK-M8BZOE User Manual

EVK-M8BZOE User Guide

6 Measuring current consumption

6.1 Basic measurements with the shunt resistors

Figure 8: EVK-M8BZOE board measuring the ZOE-M8B VCC current
On the EVK-M8BZOE there is a 1.8 V LDO supplying the ZOE-M8B 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 8.
A super capacitor charged to 3.3 V supplies the V_BCKP for ZOE-M8B. 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.
UBX-17053592 - R03 Early Production Information Measuring current consumption
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