Asahi Kasei Microdevices announced the development of the AP4413 series, a new line of ultra-low current power management ICs designed for battery charging systems in energy harvesting applications. The AP4413 series, which has been in mass production since February 2025, is ideal for use in remote controls, IoT sensors, Bluetooth trackers, and other devices traditionally powered by disposable batteries.
Energy harvesting technology, which converts small amounts of ambient energy such as light, vibration, heat, and radio waves into power, is becoming increasingly prevalent. This is particularly relevant in Europe, where Regulation (EU) 2023/1542 promotes the transition to rechargeable batteries and evaluates the feasibility of phasing out disposable batteries.
AKM’s extensive expertise in PMIC development and mass production has culminated in the AP4413 series, which allows system designers to harness ambient environmental energy to power a variety of electronic devices. This is especially beneficial for IoT environmental sensors, such as CO2 monitors, installed in locations where line power is not easily accessible and battery replacement is challenging.
The AP4413 series addresses the challenges of energy harvesting, where harvested voltage and current are often small and unstable. By minimizing power consumption and preventing excessive charging and discharging, the AP4413 series ensures efficient battery management. Its ultra-low 52 nA current consumption has minimal impact on a system’s power budget, and its voltage monitoring system prevents rechargeable batteries from becoming completely discharged, allowing for quick startup and recovery. Additionally, the inclusion of an inline capacitor supports system operation even when the battery is completely discharged, while simultaneously recharging it.
For more information on the AP4413 series and its applications, please visit https://www.akm.com.
