The Mitsumi 234138-MM3220D01NRH is a battery management integrated circuit (IC) from the MM3220 series. It is designed for battery protection and offers fault protection against over current, over voltage, and short circuit. This IC is compatible with lithium ion/polymer batteries and can handle a maximum of 2 cells. The package type is SOT-23-6, and the supplier device package is SOT-26A. The operating temperature range is -40°C to 85°C. With a standard package of 3,000 pieces, the Mitsumi 234138-MM3220D01NRH is suitable for power management applications in portable devices and electronic systems.