24V Input for 2 to 4 Cell NVDC Buck-Boost Battery Charge Controller with PROCHOT, IBAT, and IBUS Pins, and SMBus

The RT9478M is a 4-switch bidirectional buck-boost Narrow Voltage DC (NVDC) charge controller, designed to charge 2- to 4-cell batteries from a wide range of DC power sources, including USB-C Power Delivery (PD) sources, conventional AC-DC charger adapters, and mobile batteries. The device’s SMBus serial communication interface allows for flexible programming of various parameters, including charging current, charging voltage, and protection thresholds for overvoltage and undervoltage conditions affecting the input, battery, and system outputs.The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 85°C.