

Mainboard uEFI
- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 142
- Nets
- 183
- Pads
- 625
- Tracks, vias
- 1,211, 129
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 15 Jan 2023
- Updated
- 2 Feb 2023
Overview
Mainboard uEFI is an open-source printed circuit board by Churrosoft, from the Churrosoft/OpenEFI-PCB_next repository on GitHub, published under the MIT licence. It is a 4-layer board of 100 × 100 mm with 142 parts on 183 nets, routed with 1,211 tracks and 129 vias.
It is built around the TJA1042T-3,118-TD, MAX9926UAEE+ and MIC2940A-3.3WU, with the MIC2940A-5.0WT, SS8050 and AO3400A among its other parts. Its parts include 35 resistors, 27 capacitors, 14 diodes, 12 ICs and 9 transistors. It belongs with the computers and single-board computers boards and the STM32 boards of this library.
Main components
11TJA1042T-3,118-TD
SOIC-8-40℃~+125℃ 1Mbps 4.5V~5.5V 400nA 70mA CAN Transceiver Low-power mode、Wake-up function、TXD dominant timeout、ESD protection、Undervoltage Protection、Thermal shutdown protection、Bus fault protection、Integrated level shifting、Enable SOIC-8 CAN Transceivers ROHSTDSEMICCAN TransceiversMAX9926UAEE+
SSOP-16-150mil-40℃~+125℃ 2 4.5V~5.5V 4.7mA Angle-to-digital converter Programmable gain、Differential output SSOP-16-150mil ADCs/DACs - Special Purpose ROHSMaxim Integrated (Analog Devices)ADCs/DACs - Special PurposeMIC2940A-3.3WU
TO-263-3-40℃~+125℃@(Tj) 1 1.25A 240uA 26V 3.3V 400uVrms 600mV@(1.25A) Fixed Over Current Protection、Over Temperature Protection、Reverse connection protection Positive TO-263-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsMIC2940A-5.0WT
TO-220-3-40℃~+125℃ 1 1.25A 26V 400uVrms 500uA 5V 600mV@(1.25A) Fixed Over Current Protection、Over Temperature Protection Positive TO-220-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSS8050
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 200 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsIRLZ44N
TO-22055V 47A N-Channel HEXFET® Power MOSFETInfineon TechnologiesUncategorisedIRF540N
TO-2201 N-channel 1.35nF 100V 130W 280pF 33A 35mΩ@10V 4V 52nC@10V 85pF N-Channel TO-220 MOSFETs ROHSOSENMOSFETsK26
SOD-123FL-65℃~+150℃ 100uA 2A 50A 60V 700mV@2A Independent SOD-123FL Schottky Diodes ROHSGOODWORKSchottky DiodesMM3Z24VT1GX
SOD-323Zener DiodesNexperiaSMAJ58CA
DO-214AC(SMA)ESD And Surge Protection (TVS/ESD)hongjiacheng
README
README.mdOpenEFI-PCB_next
Parts
142| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100nF | Capacitor_SMD:C_0805_2012Metric | C3, C6, C7, C10, C12, C13, C14, C15, C16, C17 |
| 10 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP2, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12 |
| 9 | 4.7k | Resistor_SMD:R_0603_1608Metric | R16, R17, R20, R21, R22, R23, R24, R25, R26 |
| 9 | LED | LED_SMD:LED_0603_1608Metric | D5, D6, D7, D8, D9, D10, D11, D12, D13 |
| 8 | 750mA | Fuse:Fuse_1206_3216Metric | F1, F2, F3, F4, F5, F6, F7, F8 |
| 7 | 0.01uF | Capacitor_SMD:C_0805_2012Metric | C20, C21, C22, C23, C24, C25, C26 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R9, R11, R13, R32, R33, R39 |
| 5 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H4, H7, H8 |
| 5 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2, JP3, JP4, JP5, JP6 |
| 4 | 10K 1/2W | Resistor_SMD:R_1206_3216Metric | R27, R30, R34, R37 |
| 4 | MountingHole | TestPoint:TestPoint_Pad_D1.0mm | H3, H5, H6, H9 |
| 4 | SS8050 | Package_TO_SOT_SMD:SOT-23 | Q4, Q6, Q8, Q9 |
| 3 | 100uF ±20% 35V | Capacitor_SMD:CP_Elec_6.3x7.7 | C1, C19, C27 |
| 3 | 10R 1/10W | Resistor_SMD:R_0603_1608Metric | R1, R5, R6 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R12, R18, R19 |
| 2 | 120R | Resistor_SMD:R_1206_3216Metric | R14, R15 |
| 2 | 15pF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 1N4148 | Diode_SMD:D_SOD-523 | D2, D3 |
| 2 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C8, C9 |
| 2 | 4.99K 1/2W | Resistor_SMD:R_1206_3216Metric | R29, R36 |
| 2 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q5, Q7 |
| 2 | IRLZ44N | Package_TO_SOT_THT:TO-220-3_Vertical | Q2, Q3 |
| 2 | TPL7407LAPWR | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U10, U11 |
| 1 | 0.01R | Resistor_SMD:R_1210_3225Metric | R2 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 10K 1/10W | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 1M 1/10W | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | 25LCxxx | Package_SO:SOIC-8_5.275x5.275mm_P1.27mm | U6 |
| 1 | 25MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 36638-0002 | OpenEFI-STM32F_rev3:366380002 | J1 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C18 |
| 1 | 4.99K 1/10W | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 57.6K 1/10W | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | BOOT0 | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | BOOT1 | TestPoint:TestPoint_Pad_D1.0mm | TPe1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | Conn_02x08_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x08_P1.27mm_Vertical | J3 |
| 1 | IRF540N | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | Jumper_NO_Small | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | K26 | Diode_SMD:D_SOD-323 | D14 |
| 1 | LOGO | LOGO | G*** |
| 1 | LT4363IMS | Package_SO:MSOP-12_3x4mm_P0.65mm | U3 |
| 1 | MAX9926UAEE+ | OpenEFI-STM32F_rev3:SOP63P602X175-16N | U12 |
| 1 | MIC2940A-3.3WU | Package_TO_SOT_SMD:TO-263-3_TabPin2 | U2 |
| 1 | MIC2940A-5.0WT | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | MM3Z24VT1G | Diode_SMD:D_SOD-323 | D4 |
| 1 | PMIC_V1 | OpenEFI-STM32F_rev3:pmic_v1 | U7 |
| 1 | PaP_Driver_v1 | OpenEFI-STM32F_rev3:IC_DRV8825_STEPPER_MOTOR_DRIVER_CARRIER | U5 |
| 1 | SMAJ58CA | Diode_SMD:D_SMA | D1 |
| 1 | STM32F407VGTx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U8 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
| 1 | SYM_Hot_Small | Symbol:KiCad-Logo2_5mm_SilkScreen | SYM1 |
| 1 | SensorsV1 | OpenEFI-STM32F_rev3:SensorsV1 | U4 |
| 1 | TJA1042T3118 | Package_SO:HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.4x3.2mm | U9 |
| 1 | Tag connect | Connector:Tag-Connect_TC2030-IDC-FP_2x03_P1.27mm_Vertical | J2 |
| 1 | USB_B | Connector_USB:USB_B_OST_USB-B1HSxx_Horizontal | J4 |
| 1 | vr/hall | Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_Pad1.0x1.5mm_NumberLabels | JP7 |
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Questions
How big is the Mainboard uEFI PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Mainboard uEFI use?
142 parts, built around the TJA1042T-3,118-TD, MAX9926UAEE+, MIC2940A-3.3WU and MIC2940A-5.0WT. 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 Mainboard uEFI KiCad files?
From the Churrosoft/OpenEFI-PCB_next repository on GitHub, at the commit this page was made from: the board is mainboard_uEFI/mainboard_uEFI.kicad_pcb and its schematic mainboard_uEFI/connector.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mainboard uEFI design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).