USB5826C/KD

Controllers Overview

The USB5826C/KD is a 6-port USB 3.1 Gen 1 Smart Hub controller manufactured by Microchip Technology, housed in a 100-pin VQFN package. It features two downstream USB Type-C ports and four legacy downstream ports (two SuperSpeed/Hi-Speed and two Hi-Speed). The device supports data rates of 5 Gbps, 480 Mbps, 12 Mbps, and 1.5 Mbps. Operating voltages range from 1.08 V to 3.6 V, with an operating temperature range of 0°C to +70°C.

Controllers Feature Summary

• Native support for USB Type-C downstream ports with integrated multiplexing and PHY power management.
• Integrated battery charging detection supporting USB-IF BC1.2 profiles including DCP, CDP, and SDP.
• On-chip microcontroller with 8 KB RAM and 64 KB ROM for firmware execution and OEM configuration via OTP or SPI.
• Advanced signal integrity features including PortSwap, PHYBoost, and VariSense for flexible PCB layout and robust operation.

Controllers Applications

• Standalone USB Hubs
• Laptop Docks
• PC Motherboards
• Multi-function USB 3.1 Gen 1 Peripherals

Controllers Procurement Notes

Verify the specific suffix 'KD' against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the ordering information matches the exact part number required for your design, as suffixes can indicate variations in packaging or environmental ratings.

Controllers Selection Notes

Select this component when a compact, low-power hub solution with native USB Type-C support is required. It is suitable for applications needing simultaneous SuperSpeed and Hi-Speed connectivity with advanced port control capabilities. Consider the 100-pin VQFN footprint and thermal requirements during PCB layout.

Controllers Part Context

The USB5826C is part of Microchip's USB Hub Feature Controller family, designed for OEMs requiring configurable USB connectivity. It integrates a dedicated hub feature controller to enable USB-to-I2C/SPI/GPIO bridging, allowing external devices to be monitored or controlled via the USB interface.

Controllers Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the USB5906C/KD, USB5916C/KD, and USB5926C/KD. Verify pin compatibility and functional equivalence before substitution.

Controllers FAQ

How does the USB5826C handle USB Type-C attachment?

The device uses C_ATTACH and AB pins to detect valid USB Type-C attachments and orientation. The USB 3.1 Gen 1 PHYs are disabled until a valid attach is detected to save idle power.

What battery charging standards are supported?

It supports USB-IF Battery Charging Revision 1.2, including Dedicated Charging Port (DCP), Charging Downstream Port (CDP), and Standard Downstream Port (SDP) profiles.

Can the USB 3.1 Gen 1 and USB 2.0 portions of ports operate independently?

Yes, the Port Split feature allows the USB 3.1 Gen 1 and USB 2.0 portions of downstream ports 3 and 4 to operate independently and enumerate separate devices in parallel.