The ROHM evaluation board is for evaluating the linear charging IC BD71631QWZ, and charges 4.2V from the 5V input voltage. BD71631QWZ accepts a power supply input range of 2.9V to 5.5V and generates a charging battery voltage ranging from 2.0V to 4.7V using external resistors. Built-in fixed 10-hour safety timer
Under voltage lock out
Thermal shutdown detection
Battery over voltage protection