HardLabs

To220 powerstage

coon42·stmbl_otter·hw/kicad/troller/to220_powerstage.kicad_pcb

To220 powerstage PCB layout, top view — open source STM32 board by coon42

About the To220 powerstage PCB

To220 powerstage is an open source STM32 PCB design by coon42, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 99.8 × 74.9 mm, with 125 components from 31 distinct parts.

Its main chip is the STM32F105RC, from the STM32 family. Other key parts include the SI862x, NCP1117ST50T3G, NCP1117ST33T3G, ACS712 and IR2184S. By type, the board carries 39 capacitors, 28 resistors, 24 diodes, 16 connectors, 10 ICs and 6 transistors.

It belongs with the robotics & motion and wearables designs in this gallery.

From the project

- For some reason you need exactly this compiler: gcc-arm-none-eabi-54-2016q3 - On any newer gcc version, the board does not boot after flashing !? - Adjust path in TOOLCHAIN variable in toolchain.mak** file - The board works correctly if the green LED lights up. When receiving d

- For some reason you need exactly this compiler: gcc-arm-none-eabi-54-2016q3 - On any newer gcc version, the board does not boot after flashing !? - Adjust path in TOOLCHAIN variable in toolchain.mak** file - The board works correctly if the green LED lights up. When receiving data over UART the LED flashes blue.

- Bridge pins for DFU mode while plugging in USB cable - Flash by using the following command:

To220 powerstage, from the project README
From the project README

Main components on the To220 powerstage

STM32F105RCSI862xNCP1117ST50T3GNCP1117ST33T3GACS712IR2184S

To220 powerstage bill of materials (BOM)

125 components, 31 distinct parts.

QtyPartRefs
1
STM32F105RC
U1
1
SI862x
U2
1
NCP1117ST50T3G
U3
1
NCP1117ST33T3G
U4
3
ACS712
U5, U6, U7
3
IR2184S
U8, U9, U10
6
MOSFET_N
Q1, Q2, Q3, Q4, Q5, Q6
1
CRYSTAL_SMD
X1
3
CONN_4
P1, P2, P5
1
CONN_12
P3
1
CONN_13
P4
1
CONN_7
P6
1
CONN_2
P7
1
CONN_4
P8
1
CONN_2
P9
7
CONN_1
P10, P11, P12, P13, P14, P15, P16
1
CONN_3
K1
3
LED
D1, D2, D5
16
DIODE
D3, D4, D6, D7, D8, D9, D10, D11 +8
1
ZENER
D20
Show 11 more
QtyPartRefs
1
LED
D21
3
DIODE
D22, D23, D24
20
C
C1, C2, C5, C6, C7, C8, C9, C10 +12
8
C
C3, C4, C34, C35, C36, C37, C38, C39
5
C
C12, C13, C16, C19, C22
2
CP
C15, C18
2
CP
C29, C30
2
C
C32, C33
11
R
R1, R2, R3, R5, R6, R7, R12, R13 +3
1
R
R20
16
R
R21, R23, R24, R25, R26, R27, R28, R29 +8

To220 powerstage design files

The KiCad project lives in the coon42/stmbl_otter repository on GitHub; these links point at the commit this page was built from.

To220 powerstage: common questions

What microcontroller does the To220 powerstage use?

The To220 powerstage is built around the STM32F105RC, from the STM32 family.

How big is the To220 powerstage PCB?

The To220 powerstage measures 99.8 × 74.9 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the To220 powerstage?

125 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the To220 powerstage design files?

From the coon42/stmbl_otter repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the To220 powerstage design in my own project?

Yes, under the terms of its GPL-3.0 license, which coon42 chose for the repository.

Can I test firmware for the To220 powerstage without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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