EL-Load-Power-MCU
About the EL-Load-Power-MCU PCB
EL-Load-Power-MCU is an open source RP2040/RP2350 PCB design by fietser28, published on GitHub. It is a 4-layer board measuring 179 × 72.5 mm, with 129 components from 59 distinct parts.
Its main chip is the SC0915, from the RP2040/RP2350 family. Other key parts include the U_MAX31760AEE+T, U_SN6505BDBVT_SOT-23-6, U_BD00FC0WFP, U_SI8602AB-B-IS and U_AMS1117-3.3. By type, the board carries 31 capacitors, 31 resistors, 17 diodes, 12 jumpers, 11 ICs and 9 connectors.
From the project
The DCL8010 electronic load module features a DC Electronic Load with several modes and protections. This project is the for the development boards for this project. There is a seperate git project for the firmware.
The DCL8010 electronic load module features a DC Electronic Load with several modes and protections. This project is the for the development boards for this project. There is a seperate git project for the firmware.
Together with [studio] and a BB3 there will be some example dashboards in the near future. For example a application:
Modes: Constant Current (CC), Constant Voltage (CV), Constant Power (CP) and Constand Resistance (CR). CC and CV are implemented in hardware, CP and CR are software controlled and have a slower dynamic response. Limits: Current: 1mA - 10A set and read Voltage…
Main components on the EL-Load-Power-MCU
EL-Load-Power-MCU bill of materials (BOM)
129 components, 59 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | U_MAX31760AEE+T MAX31760 | QSOP-16_3.9x4.9mm_P0.635mm | U1 |
| 1 | U_SN6505BDBVT_SOT-23-6 SN6505BDBV | SOT-23-6 | U2 |
| 1 | U_BD00FC0WFP BD00FC0WFP-E2 | TO-252-5_TabPin6 | U3 |
| 1 | U_SI8602AB-B-IS Si8602AB | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 2 | U_AMS1117-3.3 AMS1117-3.3 | SOT-223-3_TabPin2 | U5, U9 |
| 1 | U_MCP23017-E/SO MCP23017_SO | SOIC-28W_7.5x17.9mm_P1.27mm | U6 |
| 1 | U_AZ1117CH-5.0TRG1 AZ1117-5.0 | SOT-223-3_TabPin2 | U7 |
| 1 | SC0915 | MODULE_SC0915 | U8 |
| 1 | U_MC34063AD MC34063AD | SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 1 | U_24C64 24C64 | SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 2 | H_MOLEX_47053-1000_THT_PC_FAN Fan_4pin | FanPinHeader_1x04_P2.54mm_Vertical | M1, M2 |
| 3 | Q_BSS138W BSS138W | SOT-323_SC-70 | Q1, Q2, Q3 |
| 2 | H_PLUG_2P_3.81MM_PCB_VERT Conn_01x02 | PhoenixContact_MCV_1,5_2-G-3.81_1x02_P3.81mm_Vertical | J1, J2 |
| 1 | H_MALE_1X40_VERTICAL_THT PN sensor | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 2 | H_MALE_1X40_VERTICAL_THT PinHeader 2x08 P2.54mm | PinHeader_2x08_P2.54mm_Vertical | J7, J8 |
| 1 | H_MALE_1X40_VERTICAL_THT SWD+UART header | PinHeader_1x06_P2.54mm_Vertical | J9 |
| 1 | H_JST_XH_PCB_2P_VERT Power for serial interface | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J10 |
| 1 | H_IDC_2.54MM_SOCKET_THT_2X8PINS IDC-Header 2x08 P2.54mm | IDC-Header_2x08_P2.54mm_Vertical | J11 |
| 1 | H_MALE_1X40_VERTICAL_THT Conn_01x05_Pin | PinHeader_1x03_P2.54mm_Vertical | J12 |
| 1 | EM_BUZZER_SINGLE_5V_THT Buzzer | Buzzer_12x9.5RM7.6 | BZ1 |
Show 39 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | F_SMD_PTC_1A_1206 1A | Fuse_1206_3216Metric | F1 |
| 1 | SolderJumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | JP1 |
| 1 | H_MALE_1X40_VERTICAL_THT Fan Volt/PWM | PinHeader_1x03_P2.54mm_Vertical | JP3 |
| 4 | H_MALE_1X40_VERTICAL_THT Jumper_2_Bridged | PinHeader_1x02_P2.54mm_Vertical | JP4, JP5, JP6, JP9 |
| 1 | Jumper_3_Bridged12 | SolderJumper-3_P1.3mm_Bridged2Bar12_RoundedPad1.0x1.5mm | JP7 |
| 1 | H_MALE_1X40_VERTICAL_THT Select Fan Voltage | PinHeader_1x03_P2.54mm_Vertical | JP8 |
| 1 | H_MALE_1X40_VERTICAL_THT Select 5V source | PinHeader_1x03_P2.54mm_Vertical | JP10 |
| 1 | H_MALE_1X40_VERTICAL_THT HW V3/V4 | PinHeader_1x02_P2.54mm_Vertical | JP11 |
| 1 | H_MALE_1X40_VERTICAL_THT LDO En | PinHeader_1x02_P2.54mm_Vertical | JP12 |
| 1 | PWM 2 LDO/PWM | PinHeader_1x03_P2.54mm_Vertical | JP13 |
| 1 | SW_SPST_NO_SMD_6X6X5MM Pico Reset | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | WUERTH_750316031 Wuerth_750316031 | L_Wuerth_750316031 | T2 |
| 4 | TestPoint_Probe | TestPoint_Loop_D2.54mm_Drill1.5mm_Beaded | TP1, TP2, TP4, TP5 |
| 6 | MBR0530T1G MBR0530 | D_SOD-123 | D1, D2, D3, D7, D8, D9 |
| 3 | D_SS14 SS14 | D_SMA | D5, D10, D17 |
| 4 | D_LED_GROEN_0805 LED | LED_0805_2012Metric | D6, D12, D13, D19 |
| 2 | D_Z_16V_MINIMELF 16V | D_MiniMELF | D14, D15 |
| 1 | D_Z_20V_MINIMELF 20V | D_MiniMELF | D16 |
| 1 | D_Z_5V6_MINIMELF BZV55B5V6 | D_MiniMELF | D18 |
| 1 | SRF0905-202Y | L_Bourns_SRF1260 | L1 |
| 3 | NLCV32T-100K-EF 10u | L_1210_3225Metric | L2, L3, L8 |
| 1 | L_100UH_CD54 100u / 300mA | L_Bourns_SRN6045TA | L4 |
| 7 | EEE-FK1V470P 10u | CP_Elec_5x5.8 | C1, C4, C6, C7, C13, C19, C30 |
| 3 | 1u | C_0805_2012Metric | C2, C14, C29 |
| 9 | 100N 100n | C_0805_2012Metric | C5, C8, C9, C10, C11, C16, C17, C21 +1 |
| 1 | 2.2U 2.2u | C_0805_2012Metric | C12 |
| 6 | C_10UF_50V_ELEC_5 10u | CP_Elec_5x5.8 | C15, C18, C20, C22, C23, C32 |
| 2 | 10U 10u | C_0805_2012Metric | C24, C26 |
| 2 | C_100UF_50V_ELEC_8 100u | CP_Elec_8x10.5 | C25, C28 |
| 1 | 200P 200p | C_0805_2012Metric | C27 |
| 2 | 4K7 4k7 | R_0805_2012Metric | R1, R2 |
| 2 | 10 | R_0805_2012Metric | R3, R6 |
| 6 | 10K 10k | R_0805_2012Metric | R4, R14, R18, R21, R23, R28 |
| 5 | 1k | R_0805_2012Metric | R5, R7, R8, R29, R30 |
| 1 | 39K 39k | R_0805_2012Metric | R9 |
| 3 | 3K3 3k3 | R_0805_2012Metric | R10, R11, R24 |
| 8 | 3k | R_0805_2012Metric | R12, R13, R15, R16, R19, R20, R26, R27 |
| 3 | 20K 20k | R_0805_2012Metric | R17, R25, R31 |
| 1 | 0.3 | R_0805_2012Metric | R22 |
EL-Load-Power-MCU design files
The KiCad project lives in the fietser28/EL-Load repository on GitHub; these links point at the commit this page was built from.
EL-Load-Power-MCU: common questions
What microcontroller does the EL-Load-Power-MCU use?
The EL-Load-Power-MCU is built around the SC0915, from the RP2040/RP2350 family.
How big is the EL-Load-Power-MCU PCB?
The EL-Load-Power-MCU measures 179 × 72.5 mm, has 4 copper layers and is 1.592 mm thick.
How many components are on the EL-Load-Power-MCU?
129 components, from 59 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 EL-Load-Power-MCU design files?
From the fietser28/EL-Load 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 EL-Load-Power-MCU design in my own project?
The repository has no license, so all rights stay with fietser28. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the EL-Load-Power-MCU without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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