Measure VBUS current

nPM1304 EK Hardware

The Power Profiler Kit II (PPK2) is operated in Source Meter mode for this configuration.

  1. Connect the PPK2 to the nPM1304 EK with the 4-pin measurement cable using the following pins:
    • PPK2 GND to nPM1304 EK GND pin 4 on P2
    • PPK2 VOUT to nPM1304 EK VBUS pin 1 on P2
  2. Connect the load (nRF54L15 Development Kit (DK) in this example) to nPM1304 EK. Depending on what you want to measure, use the following alternatives on the EK:
    1. VOUT1: use pin 1 or 2 and GND pin 3 or 4 on P4
    2. VOUT2: use pin 1 or 2 and GND pin 3 or 4 on P5
  3. Connect the PPK2 to a computer using a USB cable.
  4. Start the Power Profiler app.
  5. Select your PPK2.
  6. Select Source Meter as the mode.
  7. Set the supply voltage to a value between 4.0 V and 5.5 V.
  8. Toggle Enable power output to power the nPM1304 EK.
  9. Click Start.