Integrated Circuits

Reset ICs

Hardware electronics development is complex and unexpected voltage fluctuation can cause damage to circuits and raise safety concerns. Our reset ICs detect lock-up events and reset the system to keep your hardware running smoothly. Our solutions include various parameter settings with high detection accuracy.

Applications

Vehicle infotainment, Mobile devices, AV equipment, Industrial equipment

Battery Protection ICs

Mitsumi battery protection ICs for Li-ion/Li-polymer cell precisely monitor battery cell voltage and current in order to prevent adverse events during charging and discharging such as overcharge, overdischarge, overcurrent and short-circuit conditions. Mitsumi is the leading manufacturer of single cell battery protection ICs, and also offers a wide range of products for multi-cell to fit any battery pack specifications.

Applications (1-cell)

Smartphone / tablet, Smart watch / fitness tracker, Wireless headphone and true wireless earbuds, Smart glass, Gaming console and controller

Applications (multi-cell)

Electric tool, Electric bike / scooter, Cordless / robot vacuum cleaner, Portable power station

Battery Monitor ICs

Mitsumi Li-ion/Li-polymer cell balance ICs monitor battery cells in order to balance individual cells in multi series battery system. The IC monitors the voltage of a single cell in multi series cells, and turns on Nch-MOSFET when cell voltage rises above the voltage threshold. This action helps dissipate charging current to avoid a further increase in cell voltage, and balance the voltage in each cell.

Applications (multi-cell)

Electric tool, Electric bike / scooter, Cordless / robot vacuum cleaner, Portable power station

Charge Control ICs

Mitsumi Charge control ICs for Li-ion/Li-polymer regulate charging current and voltage while monitoring battery cell voltage, current and temperature in order to charge the battery cell safely. Mitsumi charge control ICs provide a wide range of charging voltages with high accuracy voltage control, and support JEITA compliant battery temperature monitoring.

Applications (multi-cell)

Smartphone / tablet, Smart watch / fitness tracker, Wireless headphone and true wireless earbuds, Smart glass, Gaming console and controller

Secondary Protection ICs

Mitsumi Secondary battery protection ICs for Li-ion/Li-polymer cell provide a added layer of protection in addition to the primary protection IC to ensure redundancy and safe battery operation. The IC monitors overvoltage conditions for each cell, and can shut off a circuit to protect the battery cell if it detects an overvoltage event even when there is a fault in the primary protection system.

Applications (multi-cell)

Smartphone / tablet, Smart watch / fitness tracker, Wireless headphone and true wireless earbuds, Smart glass, Gaming console and controller

Fuel Gauge ICs

Mitsumi Fuel Gauge ICs for Li-ion/Li-polymer cell calculate the remaining capacity of a battery cell by monitoring cell voltage, current and temperature. Mitsumi fuel gauge ICs implement a high-precision AD converter that delivers high accuracy fuel gauge and battery age monitoring for efficient and safe use of battery capacity.

Applications (multi-cell)

Smartphone / tablet, Smart watch / fitness tracker, Wireless headphone and true wireless earbuds, Smart glass, Gaming console and controller