The NEH7100BU from Nexperia is a Power Management IC designed for energy harvesting in low-power applications. It requires an input voltage of 0-4.5 V. This power management IC (PMIC) efficiently collects energy from sources such as light (indoor and outdoor photovoltaic cells), motion, vibrations, thermal variations, and electromagnetic fields, enabling it to charge storage elements like rechargeable batteries or supercapacitors. It is capable of harvesting power between 15 µW and 50 mW and optimizes energy harvesting every 0.5 seconds with advanced maximum power point tracking (MPPT) technology and an embedded hill-climbing algorithm.
The PMIC includes auxiliary features such as over-voltage, low-voltage detection, and over-current protection, USB charging support, and a low-dropout regulator (LDO) with configurable output voltage. It offers a cold-start capability that allows for battery-less operation, and its design eliminates the need for an inductor, reducing the bill of materials (BOM). This PMIC is available in a surface mount package that measures 4 x 4 mm and is ideal for smart remote controls for TV, gaming, AV control, key-fob, wireless PC devices such as keyboard, mouse, headphones, industrial sensors, tire pressure sensors and wearable device applications.