USB4624-1080HN - USB 2.0 Hi-Speed 4-Port Hub Controller | Microchip
MPN: USB4624-1080HN ✓ AktifUSB4624-1080HN Ringkasan
A USB hub controller is an interface integrated circuit that sits between a host controller and one or more USB peripherals, arbitrating transactions so that multiple low-speed, full-speed and high-speed devices can share a single upstream port. In the device hierarchy it sits below a USB interface IC, below interface ICs, below integrated circuits and below semiconductor components. The MTT approach used here allows multiple transaction translators to schedule split transactions across the four downstream ports, which improves throughput on mixed-speed buses compared with simpler single-translator hubs.
Key characteristics of the USB4624-1080HN include a four-downstream-port configuration, full USB 2.0 Hi-Speed operation, OEM configurability of port behaviour, and a low-power design suited to embedded systems. The 48-SQFN (7x7 mm) package with an exposed pad keeps the footprint small while providing a thermal path for the internal transceiver and logic. Because the hub controller integrates port PHYs, port arbitration logic and configuration registers, the designer does not need external hub PHY chips or discrete port muxes.
Technically, the device separates upstream signalling from the four downstream port PHYs, with an internal transaction translator that splits and schedules packets. Bus-powered and self-powered hub designs are both supported at the system level through external power-distribution components, while the controller itself handles enumeration, suspend/resume and port over-current reporting. Because the hub is OEM-configurable, firmware can be loaded into the device to match a specific product configuration rather than relying on a generic host-loaded descriptor set.
Typical applications include industrial HMI panels, test and measurement front ends with multiple USB peripheral connections, automotive infotainment and seat-controller USB ports, medical carts, set-top box and thin-client USB expansion, docking stations, and embedded gateways that aggregate several USB sensors or storage devices behind one host port. In each of these cases the controller reduces both board area and host-port count while centralising port control.
When designing around this part, reserve the exposed pad with a full copper pour and a solid ground plane to keep junction temperature in check, and follow the reference layout in the manufacturer datasheet for the upstream and downstream differential pairs. Keep the high-speed traces short and matched, and provide the decoupling network recommended by Microchip to avoid EMI issues near the connector shells.
This page consolidates port architecture, package details, drop-in upgrade paths such as the industrial-temperature USB4624I-1080HN, and practical layout guidance into one engineering reference that goes beyond the summary datasheet tables.
Pilihan pengganti yang segera untuk USB4624-1080HN — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
USB4624I-1080HN
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
USB4624-1080HN Spesifikasi
| Device Type | USB 2.0 Hi-Speed 4-Port Hub Controller |
| Manufacturer | Microchip Technology |
| Original Vendor | SMSC Corporation |
| USB Specification Compliance | USB 2.0 |
| Downstream Port Count | 4 ports |
| Supported Data Rate | USB 2.0 Hi-Speed, 480 Mbps |
| Transaction Architecture | MTT (Multi-Transaction Translator) |
| Configurability | OEM configurable |
| Power Class | Low-power design |
| Kemasan | 48-SQFN (7x7 mm) with exposed pad |
| Package Designation | 48-VFQHN exposed pad |
| Total Pin Count | 48 pins |
| Jenis Pemasangan | Surface Mount |
| Exposed Thermal Pad | Yes |
| Status RoHS | unknown |
| Status Lingkungan Hidup | Active |
Panduan Konfigurasi Pin USB4624-1080HN 48-vfqhn exposed pad
Konfigurasi pin untuk USB4624-1080HN (48-vfqhn exposed pad pakai). Penomeran pin, fungsi, dan garis bentuk koneksi ditakrifkan dalam dokumen pengeluar. Rujuk dokumen untuk kebentuk dan pedoman pengasman.
Tiada data garisan pin yang diperoleh untuk USB4624-1080HN.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
USB4624-1080HN patut untuk 6 aplikasis: Industrial HMI Panel USB Expansion, Test and Measurement Front Panel, Automotive Infotainment and Seat-Control USB Ports, Medical Cart and Diagnostic Workstation Connectivity, Embedded Gateway and IoT Sensor Aggregation, Docking Station and Set-Top Box USB Expansion.
Industrial HMI Panel USB Expansion
The USB4624-1080HN turns a single host USB port into four downstream USB 2.0 Hi-Speed ports for touch controllers, scanners, printers and USB-to-Ethernet adapters. Its MTT transaction translator schedules split transactions across the four ports, so a panel running several concurrent peripherals does not stall behind one busy device. The 48-SQFN (7x7 mm) package with exposed pad keeps the hub section compact beside the display driver electronics, and the exposed pad provides a thermal path for the internal PHYs. Because the device is OEM-configurable, the product can ship with its own hub descriptor set instead of relying on generic host-side configuration.
Disebarkan
Test and Measurement Front Panel
Bench instruments frequently need to expose several USB endpoints - a scope's memory device, a calibration dongle, a probe interface and a service laptop - through one host connection. The USB4624-1080HN provides four downstream USB 2.0 Hi-Speed ports with MTT-based scheduling, which keeps throughput predictable when multiple instruments stream at once. The controller also handles enumeration, suspend/resume and port over-current reporting, reducing host firmware complexity in an embedded instrument controller running Linux or a real-time OS. The exposed-pad SQFN package integrates cleanly above a solid ground plane, keeping switching-generated EMI away from sensitive analog sections.
Disebarkan
Automotive Infotainment and Seat-Control USB Ports
Vehicle cabin electronics increasingly expose USB ports for phone charging, media playback and diagnostics. The USB4624-1080HN provides four downstream USB 2.0 Hi-Speed ports behind a single vehicle network gateway, with MTT scheduling that keeps latency bounded when several cabin devices transmit simultaneously. The exposed thermal pad of the 48-SQFN (7x7 mm) package is valuable in a sealed dashboard enclosure where heat must spread into the chassis rather than into free air. For design teams that must meet extended temperature requirements, the USB4624I-1080HN provides the same pin-to-pin footprint in the industrial temperature grade.
Disebarkan
Medical Cart and Diagnostic Workstation Connectivity
A diagnostic workstation or medical cart typically aggregates a barcode reader, a printer, a mass-storage drive and a network adapter into one upstream link. The USB4624-1080HN consolidates those four downstream USB 2.0 Hi-Speed ports into a single controller, and its MTT transaction translator prevents one high-bandwidth device from starving the others. Port over-current reporting and suspend/resume handling at the hub level simplify both electrical protection design and host power management. Because the part is OEM configurable, a medical OEM can load product-specific descriptors and test modes into the hub itself, keeping the host controller firmware small and deterministic.
Disebarkan
Embedded Gateway and IoT Sensor Aggregation
Industrial IoT gateways frequently collect data from USB-connected sensors, USB sticks and licensing dongles while also exposing a USB port to the host processor. The USB4624-1080HN delivers four downstream ports in a single 48-SQFN (7x7 mm) device, so a gateway can add multi-port USB capability without allocating four discrete PHY chips or a separate external hub module. Its low-power design suits unattended, thermally constrained installations, and MTT scheduling improves throughput when several sensors publish data concurrently over full-speed or high-speed transactions. The exposed pad couples directly to the ground plane, supporting reliable operation in sealed enclosures.
Disebarkan
Docking Station and Set-Top Box USB Expansion
Docking stations and set-top boxes need to present a full complement of USB peripherals - keyboard, mouse, storage, webcam and a second display controller - while exposing only one upstream port to the host SoC. The USB4624-1080HN implements that expansion in a single 48-SQFN (7x7 mm) package with an exposed pad, which suits slim enclosures where connector placement is tight. MTT scheduling ensures that a burst of storage traffic does not delay human-interface-device traffic, preserving perceived responsiveness of the peripherals. OEM configuration also allows the hub personality - string, power policy and port ordering - to be frozen at manufacturing for a consistent user experience across units.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk USB4624-1080HN — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | USB4624I-1080HN | USB2514BI-AEZG | USB2412-DZK-TR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
Penyeberangsung Jelas
- True pin-to-pin industrial upgrade path in the identical footprint (vsUSB4624I-1080HN)
- MTT multi-translation scheduling across all four downstream ports (vsUSB2514BI-AEZG)
- Exposed-pad 48-SQFN thermal path in a 7x7 mm body (vsUSB2514BI-AEZG)
- OEM-configurable hub personality (vsUSB2412-DZK-TR)
Catatan Desain
Treat the 48-SQFN (7x7 mm) land pattern as a high-speed structure, not a digital one. Follow the reference layout in the manufacturer datasheet for the upstream and downstream differential pairs: place the pair symmetry lines tightly, keep stubs under 2 mm, and route the USB differential traces over a continuous ground plane with no splits. Keep the ESD protection devices and the connector as close to the board edge as possible, and place the hub controller between the connector and the host/device logic so that the sensitive return path stays short.
Estimated: the exposed pad must be soldered to a solid copper pour, not left floating. Assuming 3.3 V operation at 120 mA total hub current, the controller-side dissipation is roughly 0.4 W; with a package-to-ambient thermal resistance near 30 C/W on a 2-layer board, the junction rise would be about 12 C above ambient. Because the estimate depends on the actual junction-to-ambient value, confirm the thermal figure and pad-via pattern from the manufacturer datasheet, and use multiple thermal vias inside the pad region to spread heat into the ground plane.
Design the hub power path for the worst case of four downstream ports drawing bus power simultaneously. Use the port-current limiting and over-current reporting the hub controller provides, but do not rely on firmware as the only protection: place the upstream supply through a switch with current limit, and verify that the upstream host port can source the combined downstream load under the USB 2.0 specification. Provide the decoupling network recommended by Microchip close to the supply pins, and separate the noisy downstream switching return path from the upstream pair reference.
A frequent mistake is assuming any four-port hub controller is interchangeable. The USB4624-1080HN uses a 48-SQFN (7x7 mm) body with an exposed pad, while several competing four-port hubs use 36-QFN or other lead arrangements, so those parts require a new land pattern and fresh signal-integrity review. A second pitfall is omitting the exposed pad from the ground pour; the part then loses both its thermal path and its high-frequency return path, and radiated emissions rise sharply. Validate the final layout with an eye diagram and a radiated emissions pre-compliance scan.
Maklumat Kesediaan
The device is USB 2.0 specification compliant per the manufacturer product page. RoHS, REACH, lead-free and halogen-free status are not stated on the pages referenced for this part; confirm the declarations for the exact ordering code and country of import before release.
