4 layers119 × 39 mm
Controller Room
crexodon/LED-Window-Matrix-Neo
Turning the campus building into a led display
79 partsMIT
6 layers40.2 × 20 mm
USBHub
jwpleow/USBHub1- Size
- 40.2 × 20 mm
- Copper layers
- 6
- Thickness
- 1.62 mm
- Parts
- 253
- Nets
- 186
- Pads
- 925
- Tracks, vias
- 2,449, 736
- Pours
- 72
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 14 Jan 2024
- Updated
- 13 Mar 2024
Overview
USBHub is an open-source printed circuit board by jwpleow, from the jwpleow/USBHub repository on GitHub. It is a 6-layer board of 40.2 × 20 mm with 253 parts on 186 nets, routed with 2,449 tracks and 736 vias.
It is built around the TPS54331D, TPS56637RPAR and RTL8153-VB-CG, with the TLV75733PDBV, PUSB3FR4Z and ESD5B5.0ST1G among its other parts. Its parts include 153 capacitors, 51 resistors, 18 diodes, 15 ICs and 3 connectors. It belongs with the interfaces and adapters boards of this library.
Main components
12
TPS54331D
SOIC-8-40℃~+150℃@(TJ) 1 110uA 3.5V~28V 3A 570kHz 800mV~25V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TPS56637RPAR
VQFN-10-HR(3x3)-40℃~+150℃@(TJ) 1 140uA 4.5V~28V 500kHz 600mV~13V 6A Adjustable Buck Buck Built-in Yes VQFN-10-HR(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersRTL8153-VB-CG
RTL8153-VB-CGUQFN-48-EP(6x6) SMT ROHSJLCPCB AssemblyUncategorised
TLV75733PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 1A 3.3V 40uA 46dB@(100kHz) 5.5V 650mV@(1A) 71.5uVrms Fixed Positive Under Voltage Lockout、Over Current Protection、Over Temperature Protection、Soft Start SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
PUSB3FR4Z
DFN2510A-10-40℃~+85℃ 0.29pF 1nA 3.3V 3V 5.5V 5A@8/20us Four channels IEC 61000-4-2 TVS Unidirectional DFN2510A-10 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
ESD5B5.0ST1G
SOD-523-55℃~+125℃ 1 15pF 5V 6.8V 70W@8/20us 70nA 8.6V 8A@8/20us Bidirectional IEC 61000-4-2、IEC 61000-4-5 SOD-523 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
BLM21PG221SN1D
08051 220Ω@100MHz 2A 45mΩ ±25% 0805 Ferrite Beads ROHSMurataFerrite Beads
SI3421DV
TSOP-6-55℃~+150℃ 1 P-Channel 2.58nF 256pF 27mΩ@4.5V 30V 32nC@4.5V 3V 4.2W 8A P-Channel TSOP-6 MOSFETs ROHSVishay IntertechnologyMOSFETs
SS54
SMA(DO-214AC)-55℃~+125℃ 1mA@40V 40V 550mV@5A 5A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
BZT52C12
SOD-123-65℃~+150℃ 1 Independent 100nA@1V 11.4V~12.7V 12V 150Ω 25Ω 370mW SOD-123 Zener Diodes ROHSDiodes IncorporatedZener Diodes
G24P02S
SMD-24P,15.1x7.1mm0℃~+70℃ 1.5kV 100/1000M 1:1 350uH Non-POE Single port SMD-24P,15.1x7.1mm Pulse Transformers(LAN) ROHSJASNPulse Transformers(LAN)
RC01931
插件-40℃~+70℃ 1 Gold Non-PoE Phosphor bronze RJ45 Jack Shielded Through Hole With LED 插件 Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSRCHEthernet Connectors / Modular Connectors (RJ45 RJ11)
README
README.mdImpedance Control
Impedance control was done assuming manufacturing using JLCPCB 6 layer PCB JLC06161H-7628 90Ohms Diff Pair (usb) -> 0.127mm spacing, 0.16mm trace width 100Ohms Diff Pair (ethernet) -> 0.127mm spacing, 0.11mm trace width
Min vias
We require 0.15mm/0.25mm vias ($$$$$$$$$$$$)
Red LED for PD fault
KT-0603R https://jlcpcb.com/partdetail/Hubei_KentoElec-KT0603R/C2286
Power
5V
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| TPS56637RPAR | 4.5-V to 24-V In, 0.6-V to 7-V Out, 8-A Synchronous Step-Down Voltage Regulator | Datasheet | JLCPCB |
| FXL0630-3R3-M | Inductor 3.3uH (max 22mOhm) 8.5A | JLCPCB |
3V3
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| TLV75733PDBVR | Fixed 3.3V 1A SOT-23-5 25uA qI | JLCPCB |
1V2
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| TPS54331DR | Step-down type Adjustable 0.8V | Datasheet | JLCPCB |
| FNR6045S180MT | Inductor 18uH ±20% 2.4A SMD,6x6mm, 81mOhm | JLCPCB |
USB
Power Delivery
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| CYPD3177_24LQXQ | USB Type-C and Power Delivery (PD) Controller QFN-24 | Datasheet | JLCPCB |
| BZT52C12 | Zener Diode | JLCPCB | |
| SI3421DV-T1-GE3 | PMOSFET | JLCPCB | |
| SS54 | Schottky Diode for Reverse Polarity Protection | JLCPCB |
USB Data
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| CYUSB3304-68LTXCT | USB 3.2 Gen1 4-port Hub Controller | Datasheet | JLCPCB |
| TUSB522PPRGER | 5Gbps USB3.0 redriver | Datasheet | JLCPCB |
| PI3USB302-AZBEX | USB 3.0 Passive mux | Datasheet | JLCPCB |
| TXM26M0004322CBCDO00T | Crystal for USB Hub Controller 26MHz +- 10ppm 9pF | JLCPCB |
USB Ancillaries
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| GT-USB-7052 | USB Type-C Receptacle USB3.1 5A 24 Pins Vertical SMD | Datasheet | JLCPCB |
| PUSB3FR4Z | ESD Protection for differential pairs | Datasheet | JLCPCB |
| TI TVS2200DRVR | ESD Protection 28V for VBUS | Datasheet | JLCPCB |
| TPS2069CDBVR | 1.5A Current limiting power distribution switch for USB DFP | Datasheet | JLCPCB |
| ESD5B5.0ST1G | 5.8V ESD Protection for DFP VBUS | Datasheet | JLCPCB |
| 484080003 | USB Type A Vertical | JLCPCB |
Ethernet USB
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| RTL8153B-VB-CG | Ethernet-USB controller | JLCPCB | |
| G24P02S | RJ45 Transformer | JLCPCB | |
| 7D025000Q01 | 25MHz Crystal, 18pF +- 10ppm | JLCPCB | |
| RC01931 | Ethernet Port Vertical | JLCPCB |
Others
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| KT-0805G | LED Green | JLCPCB | |
| BLM21PG221SN1D | Ferrite Bead 2A @ 85C | JLCPCB | |
| WJ103-5.0-2P | 2P 5mm screw terminal angled | JLCPCB | |
| RVT1V151M0607 | 150u Aluminium Electrolytic Capacitor | JLCPCB |
Buck Converter to 5V
USB Hub Design Checklist
1 Are the decoupling capacitors and bulk capacitors connected as per Figure 1 and Figure 2? Y 2 Does the crystal meet the specification in this application note? Y 3 Are all DS ports provided with 150-µF bulk capacitors? Y 4 Do the Power-on-Reset RC components meet the minimum reset time (5 ms)? Y 5 Do the USB precision resistors have 1% tolerance? Y 6 Are the I2C lines provided with pull-up resistors to the 3.3-V domain? Y 7 Do the LEDs connected to the pin-strap pins have a 10-kΩ parallel resistor? Y 8 Is it ensured that the DS port power switch has a MOSFET connected to the OUTPUT pin or selected a power switch with fast discharge? Y 9 Is the VBUS_US pin provided with a 10-kΩ voltage divider network? Y 10 Is the US port provided with 1-µF bulk capacitor? N 11 Are all port shields terminated properly? 12 Are the ferrite beads connected as shown in Figure 1 and Figure 2? 13 Are MODE_SEL[1] and MODE_SEL[0] not pulled LOW when the pin-strap configuration is used with HX3? (For 88-pin QFN only). 14 Are values of the resistors connected in series to the LEDs decided based on the HX3’s I/O current source/sink capability (4 mA)? Layout Checklist 1 Is the crystal placed close to the chip (less than 1 cm)? 2 Are the decoupling capacitors and bulk capacitors placed close to the HX3 power pins? 3 Are the vias placed close to the HX3 power pins? 4 Are the power traces routed away from the high-speed data lines and the clock lines? 5 Is the capacitor in the RC reset circuitry placed close to the reset pin of HX3? 6 Is the 150-µF capacitor placed close to the DS port connector? 7 Are the USB SS and HS signal lines matched in length? 8 Are the USB data lines provided with solid ground plane underneath? 9 Are the SS traces provided with the guard traces along the USB data trace with stitching vias? 10 Are the SS traces provided with the AC decoupling capacitors (0.1 µF) on the TX lines? 11 Are the USB traces kept as short as possible? 12 Is it ensured that there are no stubs on all the USB traces? 13 Is it ensured that there are no vias on the SS traces? 14 Do the USB traces have few bends and no 90-degree bends?
Parts
253| Qty | Value | Footprint | References |
|---|---|---|---|
| 47 | 100n | Capacitor_SMD:C_0402_1005Metric | C101, C103, C107, C109, C111, C129, C135, C136, C137, C138, C139, C140, C141, C142, C143, C144 +31 |
| 29 | 10n | Capacitor_SMD:C_0402_1005Metric | C26, C27, C28, C29, C58, C60, C102, C104, C108, C110, C112, C147, C148, C149, C151, C152 +13 |
| 22 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R13, R15, R16, R18, R19, R21, R30, R31, R32, R33, R34, R38, R39, R40, R41 +6 |
| 14 | 100n | Capacitor_SMD:C_0603_1608Metric | C6, C8, C9, C20, C22, C114, C116, C117, C118, C120, C121, C122, C124, C125 |
| 14 | 1u | Capacitor_SMD:C_0603_1608Metric | C2, C3, C5, C7, C18, C19, C53, C57, C73, C87, C100, C106, C130, C132 |
| 10 | 1n | Capacitor_SMD:C_0402_1005Metric | C61, C63, C65, C67, C69, C90, C92, C94, C96, C98 |
| 9 | PUSB3FR4Z | CakeUSB:PUSB3FR4Z | D5, D6, D7, D8, D9, D10, D11, D12, D13 |
| 8 | 22u | Capacitor_SMD:C_0603_1608Metric | C10, C11, C52, C72, C86, C99, C105, C113 |
| 7 | 1k | Resistor_SMD:R_0603_1608Metric | R4, R24, R25, R26, R27, R48, R49 |
| 6 | 10u | Capacitor_SMD:C_0603_1608Metric | C32, C35, C38, C39, C40, C128 |
| 6 | 5k1 | Resistor_SMD:R_0603_1608Metric | R10, R11, R12, R22, R23, R37 |
| 5 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C12, C13, C131, C133, C134 |
| 4 | 150u | Capacitor_SMD:C_Elec_6.3x7.7 | C1, C115, C119, C123 |
| 4 | 2k | Resistor_SMD:R_0402_1005Metric | R8, R9, R35, R36 |
| 4 | 75 | Resistor_SMD:R_0603_1608Metric | R44, R45, R46, R47 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 |
| 3 | 22u | Capacitor_SMD:C_0805_2012Metric | C21, C23, C24 |
| 3 | ESD5B5.0ST1G | Diode_SMD:D_SOD-523 | D15, D16, D17 |
| 3 | TPS20xxC | Package_TO_SOT_SMD:SOT-23-5 | U12, U13, U14 |
| 3 | USB_3_Type_A_Molex_484080003 | CakeUSB:Molex_484080003 | U8, U9, U10 |
| 2 | 10n | Capacitor_SMD:C_0603_1608Metric | C14, C16 |
| 2 | 10p | Capacitor_SMD:C_0402_1005Metric | C50, C51 |
| 2 | 220pF | Capacitor_SMD:C_0402_1005Metric | C30, C31 |
| 2 | 27p | Capacitor_SMD:C_0402_1005Metric | C126, C127 |
| 2 | BLM21PG221SN1D | Inductor_SMD:L_0805_2012Metric | FB1, FB2 |
| 2 | RED | LED_SMD:LED_0603_1608Metric | D2, D14 |
| 2 | SI3421DV | Package_TO_SOT_SMD:SOT-23-6 | Q1, Q2 |
| 2 | SS54 | Diode_SMD:D_SMA | D3, D18 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 100p | Capacitor_SMD:C_0603_1608Metric | C25 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 18n | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 18u | CakeUSB:FNR6045Sx | L1 |
| 1 | 1n/2KV | Capacitor_SMD:C_1206_3216Metric | C150 |
| 1 | 200_1% | Resistor_SMD:R_0402_1005Metric | R28 |
| 1 | 25MHz 18pF | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y2 |
| 1 | 26MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 2k49_1% | Resistor_SMD:R_0603_1608Metric | R42 |
| 1 | 3.3u | CakeUSB:FXL0630x | L2 |
| 1 | 3n9 | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 3u3 | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 50k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 6k04_1% | Resistor_SMD:R_0402_1005Metric | R29 |
| 1 | 73k2 | Resistor_SMD:R_0402_1005Metric | R20 |
| 1 | 953 | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | BZT52C12 | Diode_SMD:D_SOD-123 | D1 |
| 1 | CYPD3177_24x | CakeUSB:CYPD3177_24LQx_QFN-24_EP_4x4_Pitch0.5mm | U1 |
| 1 | CYUSB3304-68LTXx | CakeUSB:CYUSB3304-68LTXx | U11 |
| 1 | G24P02S | CakeUSB:G24P02S | T1 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | PI3USB302-Ax | CakeUSB:PI3USB302-Ax | U6 |
| 1 | RC01931 | CakeUSB:RC01931 | J2 |
| 1 | RTL8153-VB-CG | CakeUSB:RTL8153B-VB-CG | U15 |
| 1 | Screw_Terminal_01x02 | CakeUSB:TerminalBlock_WJ103-5.0-2P | J3 |
| 1 | TLV75733PDBV | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | TPS54331 | CakeUSB:TPS54331DR | U2 |
| 1 | TPS56637RPAR | CakeUSB:TPS56637RPAR | U4 |
| 1 | TUSB522Px | CakeUSB:TUSB522Px | U7 |
| 1 | TVS2200DRVx | CakeUSB:TVS2200DRVx | U5 |
| 1 | USB_C_Receptacle | CakeUSB:USB_C_Receptacle_GT-USB-7028x | J1 |
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Questions
How big is the USBHub PCB?
It measures 40.2 × 20 mm and has 6 copper layers, 1.62 mm thick.
What parts does the USBHub use?
253 parts, built around the TPS54331D, TPS56637RPAR, RTL8153-VB-CG and TLV75733PDBV. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the USBHub KiCad files?
From the jwpleow/USBHub repository on GitHub, at the commit this page was made from: the board is USBHUB.kicad_pcb and its schematic 01_Power.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the USBHub design in my own project?
Its repository states no licence, so its author keeps all rights: ask jwpleow before reusing the design.