5 Configuring the Power Profiler Kit
Doc. ID 4425_027 v1.0
Page 18
• The custom hardware (DUT) is connected to the External DUT (
P16
) connector of the PPK.
• The power source is one of the following:
• The PPK on-board regulator: Set the Power select (
SW4
) switch in the "Reg" position.
• External power supply: In addition to the USB cable inserted in the nRF5x DK, make sure that the
external power is connected to the External DUT supply
(P22)
connector of the PPK (voltage range from
1.8 to 3.6 V). Set the Power select (
SW4
) switch in the "External" position.
• The COM (
SW3
) switch is in the "DK" position.
5.6 Current measurements on a custom hardware without using an nRF5x DK
The purpose of this setup is to be used at a design stage on a custom hardware without using the nRF5x DK.
The power supply is provided either by the PPK on-board regulator or an external power source.
The External 5V supply (
J1
) USB connector of the PPK is used to supply power to the on-board analog
measurement circuitry and the on-board regulator with 5 V. This will supply the custom hardware (DUT). If
an external power source is used to supply the custom hardware, the USB connection will still be needed to
supply the measurement circuitry of the PPK.
The following two figures show the configuration for this use case: one with the PPK on-board regulator as the
power source and one with an external power source.
Figure 13: Current measurements standalone with the on-board regulator as the power source
