DESCRIPTION
The RRW30120 has an internal MCU and hardware interface for the USB PD protocol. It allows rapid charge of any USB PD protocol-enabled sink devices such as mobile devices (MDs), notebook PCs (NB), monitors, and power tools. It resides on the secondary side of an AC/DC power supply and configures the adapter for multi-level voltage and current output. RRW30120 measures the output voltage and load current in real time. The measurement results are sent to a digital compensator for closed-loop control of the power converter. The digital control signal generated by the compensator is converted to an analog signal and transferred to the primary-side controller via an optocoupler. The RRW30120 is optimized to pair with Renesas’s high-power-density QR and ZVS Flyback primaryside controller to achieve high efficiency, low no-load power consumption, accurate voltage/current control, and fast dynamic load response. The RRW30120 also includes the necessary hardware for multi-port power adapter design with minimum BOM cost.
Renesas Electronics
