Reflow Plate Controller
About the Reflow Plate Controller PCB
Reflow Plate Controller is an open source STM32 PCB design by incend1um3, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 95 × 43 mm, with 73 components from 41 distinct parts.
Its main chip is the STM32G431KBTX, from the STM32 family. Other key parts include the L78L12ABU, TPS560430, D5V0P4UR6SO-7, TPD6S300A and UCC27511ADBV. By type, the board carries 22 capacitors, 21 resistors, 7 switches, 6 ICs, 5 diodes and 4 connectors.
It belongs with the power & battery and displays & leds designs in this gallery.
From the project
300W PCB Reflow Plate with USB-C PD Support
- Split design that allows you to manufacture the heater PCB using aluminum - Accepts USB-C PD (up to 110W) or DC supply (up to 300W) - STM32G431KBT6 microcontroller with support for flashing over USB and SWD - 1.3" OLED display for selecting alloys and showing progress - 40 KHz PWM power delivery to the heating element + a 970μF capacitor bank to keep the average current under power supply limits
Main components on the Reflow Plate Controller
Reflow Plate Controller bill of materials (BOM)
73 components, 41 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | L78L12ABU | SOT-89-3 | U1 |
| 1 | TPS560430 | SOT-23-6 | U2 |
| 1 | STM32G431KBTX STM32G431KBTx | LQFP-32_7x7mm_P0.8mm | U3 |
| 1 | D5V0P4UR6SO-7 | SOT-23-6 | U4 |
| 1 | TPD6S300A | WQFN-20-1EP_3x3mm_P0.4mm_EP1.7x1.7mm_ThermalVias | U5 |
| 1 | UCC27511ADBV | SOT-23-6 | U6 |
| 1 | DOD130N06 | TO-252-2 | Q1 |
| 1 | HSU6119 | TO-252-2 | Q2 |
| 1 | BSS138 | SOT-23 | Q3 |
| 1 | USB_C_RECEPTACLE_USB2.0_16P USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J2 |
| 1 | C163035 JST-XH | JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | J3 |
| 2 | XT30 | AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J5, J6 |
| 1 | C76873 Buzzer | Buzzer_TDK_PS1240P02BT_D12.2mm_H6.5mm | BZ1 |
| 1 | 12A | Fuse_2512_6332Metric_Pad1.52x3.35mm_HandSolder | F1 |
| 7 | C963225 SW_SPST | SW_SPST_PTS647_Sx38 | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 1 | LED_0603_RED LED_0603_Red | LED_0603_1608Metric | LED1 |
| 2 | SD03 | D_SOD-323_HandSoldering | D2, D3 |
| 1 | SS24FL | D_SOD-123F | D4 |
| 1 | SMAJ33A | D_SMA | D5 |
| 1 | PESD3V3L5UY | SOT-363_SC-70-6 | D6 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C85833 600R@100MHz | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 1 | 22U 22u | L_1812_4532Metric_Pad1.30x3.40mm_HandSolder | L1 |
| 8 | 100N 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C4, C5, C6, C11, C13, C14, C22 |
| 1 | 4.7U 4.7u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2 |
| 1 | 4.7U 4.7u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3 |
| 2 | 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C12 |
| 2 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8, C18 |
| 2 | 2.2U 2.2u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9, C15 |
| 1 | 22U 22u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 3 | 10U 10u | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C16, C17, C21 |
| 2 | 470U 470u | CP_Radial_D10.0mm_P5.00mm | C19, C20 |
| 1 | 120 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 412K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 200K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 2 | 100K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R21 |
| 7 | 10K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R11, R14, R15, R16, R17, R20 |
| 1 | 2.2K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 2 | 22 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R8 |
| 3 | 47K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R10, R13 |
| 2 | 4K7 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R19 |
| 1 | 1K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R18 |
Reflow Plate Controller design files
The KiCad project lives in the incend1um3/USB-C-PD-Reflow-Plate repository on GitHub; these links point at the commit this page was built from.
Reflow Plate Controller: common questions
What microcontroller does the Reflow Plate Controller use?
The Reflow Plate Controller is built around the STM32G431KBTX, from the STM32 family.
How big is the Reflow Plate Controller PCB?
The Reflow Plate Controller measures 95 × 43 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Reflow Plate Controller?
73 components, from 41 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Reflow Plate Controller design files?
From the incend1um3/USB-C-PD-Reflow-Plate repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Reflow Plate Controller design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which incend1um3 chose for the repository.
Can I test firmware for the Reflow Plate Controller 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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