2 layers130 × 61 mm
4 layers99 × 82.4 mm
Prototype 2
emsro/pcbs- Size
- 99 × 82.4 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 93
- Nets
- 85
- Pads
- 445
- Tracks, vias
- 1,133, 248
- Pours
- 17
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Jul 2023
- Updated
- 13 Jul 2023
Overview
Prototype 2 is an open-source printed circuit board by emsro, from the emsro/pcbs repository on GitHub. It is a 4-layer board of 99 × 82.4 mm with 93 parts on 85 nets, routed with 1,133 tracks and 248 vias.
It is built around the DRV8870DDA, LMV321 and HT7533-1(SOT89-3), with the STLINK-V3MODS, SS54 and AP60P20Q among its other parts. Its parts include 19 resistors, 13 connectors, 11 capacitors, 11 diodes and 7 ICs. It belongs with the STM32 boards of this library.
Main components
6
DRV8870DDA
SO-8-40℃~+125℃ 1 3.6A 565mΩ 6.5V~45V 6.5V~45V Bipolar Driver Overcurrent Protection、Short-Circuit Protection、Over temperature protection、Under-voltage lockout、Overvoltage Protection、Built-in charge pump、Power-on reset、Dead-time / shoot-through protection Yes SO-8 Stepper Motor Driver ROHSTexas InstrumentsStepper Motor Driver
LMV321
SOT-23-5L-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHSJiangsu Changjing Electronics Technology (CJ)Operational Amplifier
HT7533-1(SOT89-3)
SOT-89-3-40℃~+125℃ 1 250mA 2uA 3.3V 40V 550mV@(100mA) Fixed Over Current Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHEERMICRUncategorisedSTLINK-V3MODS
SMD,30x15mmSMD,30x15mm Programmers, Emulators, and Debuggers ROHSSTMicroelectronicsProgrammers, Emulators, And Debuggers
SS54
SMA(DO-214AC)-55℃~+125℃ 1mA@40V 40V 550mV@5A 5A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
AP60P20Q
PDFN3x3-8L-55℃~+150℃ 1 P-Channel 1V 20V 3.6nF 440pF 55nC@4.5V 572pF 60A 80W 9mΩ@2.5V P-Channel PDFN3x3-8L MOSFETs ROHSALLPOWERMOSFETs
README
README.mdpcbs
Parts
93| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 330R | Resistor_SMD:R_0402_1005Metric | R3, R4, R5, R6, R10, R11, R12, R14, R18 |
| 5 | 22u | Capacitor_SMD:C_0805_2012Metric | C1, C8, C9, C11, C12 |
| 5 | 470n | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C7 |
| 4 | 100k | Resistor_SMD:R_0402_1005Metric | R1, R13, R16, R19 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H5, H6, H7, H8 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 43m | Resistor_SMD:R_1206_3216Metric | R15, R17 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | INA181A3 | Package_TO_SOT_SMD:SOT-23-6 | U3, U6 |
| 2 | LED GREEN | LED_SMD:LED_0603_1608Metric | D8, D9 |
| 2 | LED YELLOW | LED_SMD:LED_0603_1608Metric | D10, D11 |
| 2 | LED_RX | LED_SMD:LED_0603_1608Metric | D1, D4 |
| 2 | LED_TX | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 2 | SS54 | Diode_SMD:D_SMA | D5, D7 |
| 1 | 100n | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 150k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | AP60P20Q | projectFootprints:DFN3.3X3.3-EP | Q1 |
| 1 | Analog | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J14 |
| 1 | AnalogDiscovery | Connector_PinSocket_2.54mm:PinSocket_2x15_P2.54mm_Horizontal | A1 |
| 1 | DEBUG | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J12 |
| 1 | DRV8870DDA | Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | U5 |
| 1 | DbgInterface | Connector_FFC-FPC:Hirose_FH12-35S-0.5SH_1x35-1MP_P0.50mm_Horizontal | J8 |
| 1 | DbgPins | Connector_PinHeader_2.54mm:PinHeader_2x18_P2.54mm_Vertical | J9 |
| 1 | ExtraDigital | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J10 |
| 1 | G*** | kibuzzard-62F78BE6 | kibuzzard-62F78BE6 |
| 1 | G*** | kibuzzard-62F78D02 | kibuzzard-62F78D02 |
| 1 | G*** | kibuzzard-62F78AEF | kibuzzard-62F78AEF |
| 1 | G*** | kibuzzard-62F78D38 | kibuzzard-62F78D38 |
| 1 | G*** | kibuzzard-62F7521F | kibuzzard-62F7521F |
| 1 | G*** | kibuzzard-62F7568E | kibuzzard-62F7568E |
| 1 | G*** | kibuzzard-62F78A97 | kibuzzard-62F78A97 |
| 1 | G*** | kibuzzard-62F78AD0 | kibuzzard-62F78AD0 |
| 1 | G*** | kibuzzard-62F75722 | kibuzzard-62F75722 |
| 1 | G*** | kibuzzard-62F78C24 | kibuzzard-62F78C24 |
| 1 | G*** | kibuzzard-62F78AC2 | kibuzzard-62F78AC2 |
| 1 | G*** | kibuzzard-62F760DB | kibuzzard-62F760DB |
| 1 | G*** | kibuzzard-62F755BE | kibuzzard-62F755BE |
| 1 | G*** | kibuzzard-62F756CA | kibuzzard-62F756CA |
| 1 | G*** | kibuzzard-62F78AE4 | kibuzzard-62F78AE4 |
| 1 | G*** | kibuzzard-62F78C8F | kibuzzard-62F78C8F |
| 1 | G*** | kibuzzard-62F78CD0 | kibuzzard-62F78CD0 |
| 1 | G*** | kibuzzard-62F75565 | kibuzzard-62F75565 |
| 1 | G*** | kibuzzard-62F753A1 | kibuzzard-62F753A1 |
| 1 | G*** | kibuzzard-62F7549B | kibuzzard-62F7549B |
| 1 | G*** | kibuzzard-62F78D92 | kibuzzard-62F78D92 |
| 1 | G*** | kibuzzard-62F75303 | kibuzzard-62F75303 |
| 1 | HT7533-1-SOT89 | Package_TO_SOT_SMD:SOT-89-3 | U2 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J3 |
| 1 | INTERFACE | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J11 |
| 1 | LED PWR | LED_SMD:LED_0603_1608Metric | D6 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5 | U7 |
| 1 | Motor_Header | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J5 |
| 1 | Potentiometer | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J7 |
| 1 | SPI | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J6 |
| 1 | STLINK-V3MODS | projectFootprints:MOD_STLINK-V3M_MB1467 | U1 |
| 1 | STM32G431K6Ux | projectFootprints:STM32FG431-32 | U4 |
| 1 | ServioDbg | Connector_FFC-FPC:Hirose_FH12-35S-0.5SH_1x35-1MP_P0.50mm_Horizontal | J2 |
| 1 | USB_C_Receptacle_USB2.0 | projectFootprints:USB_C_Female-16Pin-HPJF | J13 |
| 1 | VIN_Terminal | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1 |
Questions
How big is the Prototype 2 PCB?
It measures 99 × 82.4 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Prototype 2 use?
93 parts, built around the DRV8870DDA, LMV321, HT7533-1(SOT89-3) and STLINK-V3MODS. 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 Prototype 2 KiCad files?
From the emsro/pcbs repository on GitHub, at the commit this page was made from: the board is prototype_2/prototype_2.kicad_pcb and its schematic prototype_2/prototype_2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Prototype 2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask emsro before reusing the design.
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