4 layers83 × 106 mm
2 layers52.5 × 55 mm
Usb switch
danderson/ee-usb-switchUSB-controlled load switches
- Size
- 52.5 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 37
- Pads
- 203
- Tracks, vias
- 404, 24
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 17 Nov 2015
- Updated
- 5 Dec 2015
Overview
Usb switch is an open-source printed circuit board by danderson, from the danderson/ee-usb-switch repository on GitHub. It is a 2-layer board of 52.5 × 55 mm with 68 parts on 37 nets, routed with 404 tracks and 24 vias.
It is built around the STM32F042K6T6 and SI1869DH. Its parts include 26 capacitors, 21 resistors, 8 ICs, 7 connectors and 2 switches. It belongs with the STM32 boards of this library.
Main components
2
STM32F042K6T6
LQFP-32(7x7)-40℃~+85℃ 1.65V~3.6V 12bit 26 32 Bit 32KB 48MHz 6KB ARM Cortex-M0 Built-in FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
SI1869DH
SC-70-6(SOT-363)-55℃~+150℃ 1 1.2A 1.8V~20V 132mΩ Load Switch Soft-start SC-70-6(SOT-363) Power Distribution Switches ROHSVishay IntertechnologyPower Distribution Switches
README
README.mdee-usb-switch
USB-controlled load switches
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 10k | parts:Resistor_0603 | R1, R4, R5, R7, R8, R10, R11, R13, R14, R16, R17, R19, R20 |
| 13 | 1µF | parts:Capacitor_0603 | C4, C9, C11, C12, C14, C15, C17, C18, C20, C21, C23, C24, C26 |
| 7 | 10µF | parts:Capacitor_0603 | C5, C10, C13, C16, C19, C22, C25 |
| 7 | 2_Post_Terminal | parts:2_Post_Terminal_OSTTE020104 | CON1, CON2, CON3, CON4, CON5, CON6, LINE1 |
| 6 | 2k | parts:Resistor_0603 | R6, R9, R12, R15, R18, R21 |
| 6 | Si1869DH | parts:Si1869DH_SC70-6 | U3, U4, U5, U6, U7, U8 |
| 4 | 100nF | parts:Capacitor_0603 | C1, C2, C3, C6 |
| 2 | 22R | parts:Resistor_0603 | R2, R3 |
| 2 | 47pF | parts:Capacitor_0603 | C7, C8 |
| 2 | Switch_SPST | parts:Switch_SPST_TL3301NF160QG | S1, S2 |
| 1 | 2A | parts:Fuse_Block | F1 |
| 1 | AP2120N | parts:AP2120N_SOT23-3 | U1 |
| 1 | STM32F042K6T6 | parts:STM32F042K6T6_32-QFP | U2 |
| 1 | SWC | parts:Test_Point_Test_Point_1mm | TP2 |
| 1 | SWD | parts:Test_Point_Test_Point_1mm | TP1 |
| 1 | USB | parts:USB_Micro_SMD_RA | USB1 |
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Questions
How big is the Usb switch PCB?
It measures 52.5 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb switch use?
68 parts, built around the STM32F042K6T6 and SI1869DH. 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 Usb switch KiCad files?
From the danderson/ee-usb-switch repository on GitHub, at the commit this page was made from: the board is usb_switch.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb switch design in my own project?
Its repository states no licence, so its author keeps all rights: ask danderson before reusing the design.