The nPM1100 EK has a flexible and configurable power supply system to allow testing with different power sources and to facilitate accurate power measurements.
The power options are:
- USB connector J2 (5.0 V)
- VBUS P8 pin 1 (4.5–6.7 V)
- Connectors for Li-ion/Li-poly batteries P2, P3, P6 or, P4 pin 1 (2.5–4.2 V)Note: Use only one connector at a time.
Use the USB connector or the VBUS pin for powering the system and delivering power when charging. The nPM1100 Power Management Integrated Circuit (PMIC) will pull current from the battery if no external power source is connected to J2/P4.
Figure 1. Power supply options
Note: Before connecting a battery, make sure the battery plug polarity matches the nPM1100 EK design.