Maxim is aiming at USB-C Power Delivery with a pair of chips: the MAX77958 USB-C PD controller and the MAX77962 28W buck-boost charger.

MAX77958

“As portable devices add new technologies such as 5G connectivity and 4K video, many are changing from single-cell to two-series [2S] cell architectures,” according to the company. “With this change, comes the need for higher power delivery via USB-C PD and 25W or higher charging.”

• MAX77958 is a stand-alone USB-C PD 3.0 – compliant controller with ‘fast role swap’ and ‘dual role port’ (DRP) support.

        BC1.2 detection is integrated, and is D+/D- switching for legacy USB port support.
        The voltage bus connection is rated to 28V and there is CC pin short protection, moisture detection and corrosion prevention.

• MAX77962 is a charger for 2S Li+ batteries. Input range is 3.5V to 23V (30V withstanding). It supports USB-C PD as well as legacy USB sources.

Applications for these chips are foreseen in game players, augmented reality devices, virtual realitydevices, cameras, wireless speakers, portable printers, handheld computers, industrial equipment and medical devices.

“Customers can accelerate their development using our combined MAX77958 USB-C PD controller and MAX77962 28W buck-boost charger evaluation kit,” said Maxim business director Bakul Damle.