Hardware description
The Evaluation Board enables evaluation of the Battery Booster products by controlling them from
a PC or connection to a board under development. The NBM5100x, NBM7100x evaluation kit is
fully assembled, containing apart from a CR2032 battery cell all necessary components to evaluate
the performance and behavior of the battery boosters before applying them in an application. The
top area of the PCB contains an USB to I²C and USB to SPI converter and a level shifter circuit for
controlling the Evaluation board with a PC GUI application. The following sections give a detailed
overview of the module and available test pins for observing the behavior.
2.1. Storage capacitor
By default, one storage capacitor is mounted for the NBM7100x series. For the NBM5100x two
(balanced) super capacitors are mounted in series. The size of these capacitors depends on the
amount of energy needed to supply the load. For demonstration purposes 1000 μF capacitors
are placed on the NBM7100x board and 470 mF for the NBM5100x board. Both boards offer the
possibility to mount leaded (super-) capacitors. It is also possible to connect a custom storage
capacitor to connector J6.