USB7052NT/KDX

Controllers Overview

The USB7052NT/KDX is a low-power, OEM-configurable USB 3.2 Gen 1 hub controller featuring four downstream ports and native Type-C support with Power Delivery on the upstream port. It supports SuperSpeed (5 Gbps), Hi-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) operations. The device integrates an internal Hub Feature Controller for USB-to-I2C/SPI/UART/I2S/GPIO bridging and includes battery charging detection compliant with USB-IF BC1.2 standards. It operates within a commercial temperature range of 0°C to +70°C and utilizes a 100-pin VQFN package.

Controllers Feature Summary

• Native USB Type-C support on downstream ports with integrated CC logic and multiplexers
• Internal Hub Feature Controller enabling USB-to-peripheral interface bridging
• Integrated USB Power Delivery management for up to 100W on the upstream port
• Support for USB-IF Battery Charging revision 1.2 profiles including DCP, CDP, and SDP

Controllers Applications

• Standalone USB Hubs
• Laptop Docks
• PC Motherboards
• Multi-function USB 3.2 Gen 1 Peripherals

Controllers Procurement Notes

Verify the specific suffix 'NT' against official Microchip documentation to confirm tape-and-reel packaging and exact temperature grade. Ensure compatibility with required companion PD transceivers such as the UPD360 or UPD350 for full Power Delivery functionality. Confirm that configuration straps are properly terminated if using default settings.

Controllers Selection Notes

Select this component for designs requiring native Type-C connectivity with Power Delivery capabilities on a single hub controller. Consider the integrated Hub Feature Controller if system monitoring via I2C or SPI is required. Verify that the 100-pin VQFN package fits the PCB layout constraints and that external bias resistors for RBIAS and test pins are included in the design.

Controllers Part Context

The USB7052 series represents Microchip's SmartHub technology, combining high-speed data transfer with advanced power management. The USB7052 variant specifically targets applications needing multiple downstream connections with flexible port configurations. It decouples SuperSpeed transfers from USB 2.0 traffic to prevent bottlenecks.

Controllers Replacement Considerations

The USB7056/KDX is a related model offering six downstream ports but lacks native Type-C support on downstream ports. The USB7002/KDX provides four ports but does not include native Type-C features or Power Delivery integration. Verify pinout and firmware compatibility before substituting.