Active USB 3.1 hub controller for industrial-temperature designs
The USB5916CT-I/KD: It supports both USB 2.0 and USB 3.1 standards, so it can handle SuperSpeed (5 Gbps) traffic alongside legacy full-speed devices on the same downstream ports. Rated for -40°C to 85°C ambient, this part fits outdoor telecom cabinets, factory-floor USB concentrators, and vehicle-infotainment backplanes where a commercial-grade hub would drift out of spec on a hot afternoon.
Package and supply rails that shape the board layout
Housed in a 100-VFQFN with exposed pad (12x12 mm body), the USB5916CT-I/KD demands a solid thermal via array under the centre pad — the datasheet's recommended footprint is the starting point, not a suggestion. The dual supply range (1.08V–1.32V core, 3V–3.6V I/O) means two independent power planes; a single 3.3V rail alone will not power the core. The I²C, SMBus, SPI, and UART interfaces give the host processor flexible control for port mapping, over-current reporting, and firmware updates without tying up a dedicated USB port.
Sourcing and lifecycle — active, no end-of-life signal
Microchip lists the USB5916CT-I/KD as Active and ROHS3 compliant.
