MM3865A-B-C-D

MinebeaMitsumi offers a wide range of battery ICs, supporting configurations from single-cell to multi-cell battery packs. These ICs are suitable for a variety of applications, from mobile devices to electric bicycles. Designed with high detection accuracy and rich functionality, these battery ICs ensure safe charging and reliable protection of rechargeable batteries. MinebeaMitsumi's charge control ICs are suitable for charging single-cell Li-ion and Li-polymer batteries and ensure stable charging through highly accurate voltage and current regulation. High safety is achieved through multiple protection features, including battery temperature monitoring via an external thermistor and a built-in charging timer. Additionally, the wide range of supported charging voltages and currents enables flexible system design, allowing compatibility with various battery types. MinebeaMitsumiMM3865A/B/C/D is a linear charge control IC for single-cell Li-ion and Li-polymer batteries. It offers precise charge current control from 3mA to 500mA, making it a compact and low-power choice for mobile devices using low-capacity batteries. The IC is available with multiple finely tuned charge voltage options (ranging from 4.1V to 4.45V) to match different battery types, and the full-charge current can be individually set—enabling the design of flexible and customized charging systems. Its low battery leakage current helps extend the operating time of mobile devices.

MM3865A/B/C/D features :

• Low charge current control suitable for low-capacitance battery (charge current 3mA min)
• Multiple charge voltage (4.1V~4.45V)
• Adjustable full charge current setting (ITERML pin)
• High Rating input voltage(13V)
• Low battery leak current (10nA max)
• Multiple battery temperature profile
• Space saving package (1.8mm x 1.6mm x 0.55mm)
• Operating temperature range Ta=-40～85℃

M3865A/B/C/D applications :

• Small mobile device
• Earphone
• Healthcare device
• Others