Powering external loads from AVL is not recommended, other than pullup resistors. Bypass with a 2.2μF/10V ceramic capacitor to GND. Output of the on-chip LDO is used to power the on-chip and low-noise circuits. TemplateByTechPubs Common Negative Output 1. The IC is available in a 3.10mm x 2.65mm, 0.5mm pitch, wafer-level package (WLP). The 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. It also has an I 2C interface that the system can use to read/write and configure internal registers. The IC has an interrupt output pin to report event detection and status changes. For example, it can configure an external charger based on BC1.2 detection, CC detection, and PD communication. The IC has an I 2C 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. It can be customized easily without affecting the compliance.
The IC is compliant with USB Type-C Specification Release 1.3 and PD 3.0.
When the USB PD negotiation is complete, the IC configures an alternate mode setting for external multiplexers. It contains V CONN switches for USB PD and an enable pin for an external V CONN boost or buck converter. The IC also has a D+/D- USB switch and BC1.2 detection to support legacy USB standards. The IC protects against overvoltage and overcurrent, and detects moisture and prevents corrosion on the USB Type-C connector. It detects connected accessories or devices by using Type-C CC detection and USB PD messaging. The MAX77958 is a robust solution for USB Type-C CC detection and power delivery (PD) protocol implementation.
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