MAX77958 USB Type-C® and USB Power Delivery (PD) Controller

Analog Devices' MAX77958 is a robust solution that detects connected accessories or devices by using Type-C CC detection and USB power delivery (PD) messaging. The IC protects against overvoltage and overcurrent, detects moisture, and prevents corrosion on the USB Type-C connector. It also has a D+/D- USB switch and BC1.2 detection to support legacy USB standards. It contains VCONN switches for USB PD and an enable pin for an external VCONN boost or buck converter and is available in a 3.10 mm x 2.65 mm, 0.5 mm pitch wafer-level package (WLP).

The MAX77958 is compliant with USB Type-C specification release 1.3 and PD 3.0 and can be customized easily without affecting the compliance. The IC has an I²C master that can read and write to other devices in the system so that its firmware can configure related devices without the main processor's assistance. For example, it can configure an external charger based on BC1.2 detection, CC detection, and PD communication. It also has an interrupt output pin to report event detection and status changes. The MAX77958 IC has nine configurable GPIOs that can be used for detection, as interrupts, and as the enable/disable pin for external devices or as ADC inputs.