2 layers57.6 × 54.1 mm
2 layers95.9 × 58.9 mm
Differential
Xingzhou-Chen/MT- Size
- 95.9 × 58.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 62
- Pads
- 218
- Tracks, vias
- 320, 29
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 Jan 2024
- Updated
- 10 Jul 2024
Overview
Differential is an open-source printed circuit board by Xingzhou-Chen, from the Xingzhou-Chen/MT repository on GitHub. It is a 2-layer board of 95.9 × 58.9 mm with 52 parts on 62 nets, routed with 320 tracks and 29 vias.
It is built around the LM317, NJM2114M and 2N2222A, with the IRLIZ44N among its other parts. Its parts include 21 resistors, 10 capacitors, 8 connectors, 6 diodes and 4 transistors. It belongs with the RP2040 boards of this library.
Main components
4
LM317
SOT-223-40℃~+85℃@(Ta) 0.003%Vout 1 1.3V~37V 1A 40V 80dB@(120Hz) Adjustable Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsNJM2114M
SOIC-8-208mil- LCDH ROHSJRCUncategorised
2N2222A
TO-92-55℃~+150℃ 1 NPN 100MHz 100nA 400 40V 5V 600mA 600mV 625mW NPN TO-92 Bipolar (BJT) ROHSSlkorBipolar (BJT)
IRLIZ44N
TO-220-FP1 N-channel 1.7nF@25V 22mΩ@17A,10V 2V@250uA 30A 48nC@5V 55V TO-220-FP MOSFETsInfineon TechnologiesMOSFETs
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R14, R15, R17, R19, R20 |
| 5 | 1N4002 | Diode_THT:D_DO-41_SOD81_P3.81mm_Vertical_AnodeUp | D2, D3, D4, D5, D6 |
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C8, C9 |
| 4 | 4.7k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R8, R9 |
| 3 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C6, C10 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C7 |
| 2 | 10 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16, R21 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11 |
| 2 | 2N2222A | Package_TO_SOT_THT:TO-92 | Q3, Q4 |
| 2 | 33k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R18 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 2 | IRLIZ44N | IRLZ44N:TO254P1054X469X1930-3 | Q1, Q2 |
| 1 | 2.52k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 240 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 390 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | LED | LED_THT:LED_D5.0mm | D1 |
| 1 | LM317 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | Middle_Valve | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | NJM2114 | Package_DIP:DIP-8_W7.62mm | U3 |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH | U2 |
| 1 | Pump | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Sensor_AMS | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J4 |
| 1 | Sensor_HX | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J5 |
| 1 | UART | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J8 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4125-xx-x-0190_6P_TopMnt_Horizontal | J1 |
| 1 | Valve_Baseline | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | Valve_Cuff | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
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Questions
How big is the Differential PCB?
It measures 95.9 × 58.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Differential use?
52 parts, built around the LM317, NJM2114M, 2N2222A and IRLIZ44N. 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 Differential KiCad files?
From the Xingzhou-Chen/MT repository on GitHub, at the commit this page was made from: the board is bppy/PCB/Differential/Differential.kicad_pcb and its schematic bppy/PCB/BPN_2/BPN.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Differential design in my own project?
Its repository states no licence, so its author keeps all rights: ask Xingzhou-Chen before reusing the design.