3.3.1 Multi-Phase Power Board (MPPB)
The Multi-Phase Power Board has four half-bridges, each controlled by a MIC4605 MOSFET driver. Each MIC4605 controls two power MOSFET transistors.
Two configurable current sense amplifiers can be configured in several ways.
An on-board power supply to take the motor voltage down to logic levels.
Generally, a wide input voltage range (6-50V).
Some peripherals on board (switch/LED/potentiometer/temperature sensor).
More comprehensive information on MPPB can be found here: Multi-Phase Power Board Hardware User Guide