2 layers79.5 × 59.5 mm
2 layers
Power Board v2
segcboi/EEE3088Fprojekt
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 71
- Pads
- 263
- Tracks, vias
- 235, 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Mar 2025
- Updated
- 13 May 2025
Overview
Power Board v2 is an open-source printed circuit board by segcboi, from the segcboi/EEE3088F repository on GitHub. It is a 2-layer board with 68 parts on 71 nets, routed with 235 tracks and 2 vias.
It is built around the DRV8833PWP, RT9742GGJ5 and BQ24074RGTR, with the HUSB237-AA001-DN06R, MMBT5551L and PH2.54-01-16PZS among its other parts. Its parts include 23 resistors, 19 capacitors, 7 ICs, 2 diodes and 2 connectors.
Main components
8
DRV8833PWP
ETSSOP-16-EP-40℃~+85℃ 1.5A 2 2.7V~10.8V 2.7V~10.8V 360mΩ Bipolar Driver Overcurrent Protection、Short-Circuit Protection、Over temperature protection、Under-voltage lockout、Dead-time / shoot-through protection Yes ETSSOP-16-EP Stepper Motor Driver ROHSTexas InstrumentsStepper Motor Driver
RT9742GGJ5
TSOT-23-5-40℃~+85℃ 1 1A 2.7V~6V 70mΩ Active High High Side Switch Short-Circuit Protection(SCP)、Undervoltage Protection(UVP)、Overcurrent Protection(OCP)、Over Temperature Protection TSOT-23-5 Power Distribution Switches ROHSRichtek TechPower Distribution Switches
BQ24074RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 4.2V 4.35V~10.2V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery ManagementHUSB237-AA001-DN06R
DFN-6L-EP(2x2)-40℃~+125℃ 100W 3V~22V 5V、9V、12V、15V、20V Power Receiver Controller DFN-6L-EP(2x2) USB PD ROHSHynetekUSB PD
MMBT5551L
SOT-23-55℃~+150℃ 1 NPN 100nA 160V 250mV 300mW 600mA 6V 80 NPN SOT-23 Bipolar (BJT) ROHSonsemiBipolar (BJT)
PH2.54-01-16PZS
插件,P=2.54mmPin HeadersXUNPU
SWPA4020S1R5NT
SMD,4x4mm1.5uH 1.98A 35mΩ 4.45A ±30% SMD,4x4mm Power Inductors ROHSSunlordPower Inductors
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdEEE3088F Group 9 Micro-Mouse Power Subsystem
The object of this project is to design a power subsystem that will be able to power a multitude of functions of a maze-solving Micro-Mouse for our EEE3088F Engineering Design Principles course.
Requirements
- Operate four motors bidirectionally
- Monitor battery using the INA219
- Charge the battery using 9 V
- Have both 200 mA and 600 mA charging modes
- Provide 3V3 and 5V
- Integrate a USB-C port for charging
- Provide external load switching
- Provide a switch to turn off the system
Layout
The layout of files for the project are as follows:
Datasheets
This is where all component datasheets are located.
Power_Board_v2
This is whare the PCB schematics and design are located
Library.pretty
This is where certain components's footprints can be located, mainly the switch and __________ since KiCad had no stored footprint for the required switch and_________.
External Sources
Certain external sources were used to make life and the design process slightly easier. These included
- Bouni's Repo: This gave access to a multitude of features that allowed KiCad access to a whole host of components from JLCPCB's parts library.
- The devil: We sold our souls to the devil himself to actually get this design completed.
Design Tools
The design of the PCB was done using the free PCB desgin software KiCad.
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | TestPoint | TestPoint:TestPoint_Pad_D3.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12 |
| 6 | 1k5 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R11, R12, R13, R15, R18 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R10, R16 |
| 3 | 10kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R19, R23 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6, C7 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C16, C18 |
| 3 | 1Ω | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R20, R21, R22 |
| 2 | 0.4R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R14, R17 |
| 2 | 10nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12, C13 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17, C19 |
| 2 | 1MΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R5 |
| 2 | 2.2uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C14, C15 |
| 2 | 22uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 2 | 4.7u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C8 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C11 |
| 2 | DRV8833PWP | Package_SO:HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.46x2.31mm_ThermalVias | U7, U8 |
| 2 | RT9742GGJ5 | Package_TO_SOT_SMD:TSOT-23-5 | U5, U6 |
| 1 | 100uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C9 |
| 1 | 150R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 330kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8 |
| 1 | 4k3 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 75k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U3 |
| 1 | Conn_01x02 | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J2 |
| 1 | HUSB237-AA001-DN06R | Package_DFN_QFN:DFN-6-1EP_2x2mm_P0.65mm_EP1.01x1.7mm | U2 |
| 1 | INA219AIDCNR | Package_TO_SOT_SMD:SOT-23-8 | U4 |
| 1 | LEDR | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | LEDW | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | MMBT5551L | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | PH2.54-01-16PZS | Connector_PinHeader_2.54mm:PinHeader_2x16_P2.54mm_Vertical | J1 |
| 1 | SWPA4020S1R5NT | Inductor_SMD:L_Cenker_CKCS4018 | L1 |
| 1 | TYPE-C-31-M-12 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USBC1 |
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Questions
What parts does the Power Board v2 use?
68 parts, built around the DRV8833PWP, RT9742GGJ5, BQ24074RGTR and HUSB237-AA001-DN06R. 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 Power Board v2 KiCad files?
From the segcboi/EEE3088F repository on GitHub, at the commit this page was made from: the board is Power_Board_v2/Power_Board_v2.kicad_pcb and its schematic 5V 3V3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power Board v2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask segcboi before reusing the design.