Dual-mode battery charge ICs enable simultaneous USB PD and wireless charging

ROHM now offers dual-input boost-buck charging ICs that support one to four battery cells for notebook PCs, smartphones, and power banks that utilise the latest charging technologies such as wireless and USB Power Delivery (USB PD). The BD99954GW/MUV generates a charging voltage from 3.07V to 19.2V for one to four cells through boost-buck control for USB PD. Also, the industry's first dual-input charging system automatically switches charging operation without an MCU using an original built-in charging adapter function. Moreover, support is provided for both USBPD and USB BC 1.2. This facilitates configuration of dual-mode systems capable of simultaneous charging via USB PD, wirelessly, or from an AC adapter.