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A battery charging IC, or integrated circuit, is a specialised electronic device designed to manage the charging of a battery, It is used in many electronic devices, such as cell phones, tablets, and laptops, to protect the battery from overcharging and to extend its life.
Battery charging ICs typically include features such as overvoltage protection, overcurrent protection, and thermal protection.
The primary function of a battery charging IC is to manage the power flow from an external power source, such as a wall adapter or USB port, to the battery.
This includes setting the voltage and current levels, monitoring the battery’s temperature and state of charge, and implementing safety features to protect the battery from damage.
Battery charging ICs also provide a way to charge the battery quickly, while still maintaining the battery’s life and avoiding dangerous overcharging. In addition to its primary function of charging the battery, battery charging ICs may also include features such as a fuel gauge to monitor the battery’s state of charge.
This is useful for devices that require an accurate estimation of the remaining battery life. Some battery charging ICs also include a battery balancer, which helps to maintain a balanced charge between different battery cells.
The technology used in battery charging ICs is constantly evolving. Manufacturers are continually developing new and improved battery charging ICs that offer faster charging times, higher efficiency, and more features.
As technology advances, battery charging ICs will continue to play an important role in keeping our electronic devices powered and running smoothly.
The majority of today’s rechargeable batteries, however, are tiny and thin and require low voltage charging in the 2V to 3V range.
Additionally, battery charger ICs that can manage a wide voltage range are not yet available. Based on this market requirement, ROHM created a battery charger IC that supports both low voltage charging of li-ion batteries as well as new forms of rechargeable batteries like all-solid state and semi-solid state batteries.
The ground-breaking 2S battery rapid charging architecture enables charging power to expand from 60W to 120W and then to 200W. With more and more powerful APPs and games on our smartphones, however, the battery anxiety is growing.
To reduce the charging time and lower the temperature during charging, it continues to push for higher charging power of up to 60W or even 120W.
By consolidating circuitry that generally requires five or more discrete components into a single chip, it lowers the Bill-of-Materials (BoM) of an end product. The nPM1300 Evaluation Kit (EK) and the nPM PowerUP PC app were also released in conjunction with the launch.
Developers may easily assess, set up, and use the nPM1300 PMIC without writing any code thanks to the EK and the app.
The MCP7382X family, another component in Microchip’s expanding analogue range that targets portable applications, was created to penetrate the battery-management market. The MCP73827 chip has the capacity to track charge current and to activate an LED indicator to signal a change from constant current to constant voltage.
The Global Battery Charging IC Market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
In order to provide low-voltage charging for thin, compact IoT devices like smart displays that run on rechargeable batteries, ROHM developed a battery charger integrated circuit (BD71631QWZ). This design was motivated by the need to develop new types of batteries that are safer and have a higher density than current models.
Batteries with various terminal compositions and all-solid/semi-solid models employing innovative materials for the electrode portion are examples of this. Low voltage charging, or 2 to 3 volts, is necessary for many of the newest rechargeable batteries since they are thin and compact. A wide voltage range is also not currently supported by any battery charger integrated circuits.
The need in the industry led ROHM to develop a battery charger integrated circuit (IC) that can charge new types of rechargeable batteries, like all-solid and semi-solid state, at low voltages in addition to Li-ion batteries. Enhancing the stability of the internal circuit, the BD71631QWZ achieves low voltage charging across a broad range of 2.0V to 4.7V.
The novel device from ROHM reduces design load when changing batteries by enabling the charge voltage to be easily adjusted by simply adjusting the external resistor, in contrast to conventional battery charger ICs, which deliver a fixed voltage. Also, compared to traditional products on the market, original package technology produces a tiny package with a thickness of just 0.4 mm, which is 60% less. Smaller, thinner devices are a result of this.
Additionally, every charging feature, such as charge/termination current, may be configured for CCCV charging, offering the best possible charging conditions for wearables and thin, small IoT devices that use the newest generation of rechargeable batteries.
Moving forward, ROHM will keep offering more effective charging options in an effort to increase application convenience.By simply adjusting the external resistor, the BD71631QWZ makes it possible to easily adjust the charging voltage from 2.0V to 4.7V.
This feature ensures compatibility not only with single-cell Li-ion batteries but also with all-solid/semi-solid and other novel rechargeable battery types that require low voltage charging.The new product from ROHM has a small, compact form factor measuring 1.8mm × 2.4mm × 0.4mm and uses innovative package technology to achieve this.
