2 layers28 × 30 mm
2 layers49 × 34 mm
OPS - The Otter Power Supply
- Size
- 49 × 34 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 99
- Nets
- 94
- Pads
- 363
- Tracks, vias
- 812, 128
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 19 Apr 2021
- Updated
- 21 Apr 2023
Overview
OPS is an open-source printed circuit board by Jana-Marie, from the Jana-Marie/OPS repository on GitHub. It is a 2-layer board of 49 × 34 mm with 99 parts on 94 nets, routed with 812 tracks and 128 vias.
It is built around the OPA340NA, SI8540-B-FW and STUSB4500Q, with the USBLC6-4, AO3400 and SS34 among its other parts. Its parts include 37 capacitors, 35 resistors, 8 ICs, 8 connectors and 7 diodes. It belongs with the power boards and the STM32 boards of this library.
Main components
7
OPA340NA
SOT-23-5SOT-23-5 Operational Amplifier ROHSTexas InstrumentsOperational AmplifierSI8540-B-FW
SOT-23-5-40℃~+85℃ 1 10mA 20kHz 46uA 5V~36V ±0.3V SOT-23-5 Current Sense Amplifiers ROHSSilicon LabsCurrent Sense Amplifiers
STUSB4500Q
QFN-24-EP(4x4)-40℃~+105℃ 160uA 3V、5.5V Controller PD 3.0、PD 2.0 QFN-24-EP(4x4) USB Converters ROHSSTMicroelectronicsUSB ConvertersUSBLC6-4
UncategorisedSTMicroelectronics
AO3400
SOT-23-55℃~+150℃ 1 N-channel 1.05nF 1.4V 1.5W 28mΩ@10V 30V 5.8A 77pF N-Channel SOT-23 MOSFETs ROHSGOODWORKMOSFETs
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
SS8050
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)
README
README.mdOPS
OPS is a matchbox sized 65W CC/CV lab power supply. It is controlled by SCPI and powered by USB-PD.
Please Note that this project is not yet fully tested.
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Parts
99| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | 5k1 | otter:R_0402 | R1, R2, R3, R10, R12, R14, R16, R17, R23, R24, R25, R26, R27, R28, R29, R35 +6 |
| 18 | 100n | otter:C_0402 | C3, C11, C19, C21, C22, C23, C24, C25, C26, C27, C29, C30, C31, C32, C33, C34 +2 |
| 7 | 22u | otter:C_1210 | C8, C9, C13, C17, C35, C36, C38 |
| 5 | 1u | otter:C_0402 | C1, C2, C5, C6, C12 |
| 4 | 100n | otter:C_0603 | C10, C14, C15, C16 |
| 4 | 2k37 | otter:R_0402 | R19, R31, R33, R34 |
| 3 | 33k | otter:R_0402 | R11, R13, R22 |
| 3 | D_Small | Diode_SMD:D_SOD-323 | D1, D6, D7 |
| 2 | 33 | otter:R_0402 | R18, R21 |
| 2 | Banana | otter:banana-jack | J3, J4 |
| 1 | 100k | otter:R_0402 | R30 |
| 1 | 12-22_R6GHC-A30_2C | otter:R6GHC-A30 | D3 |
| 1 | 21.5k | otter:R_0402 | R15 |
| 1 | 22n | otter:C_0402 | C18 |
| 1 | 22u | otter:C_0805 | C20 |
| 1 | 33 | otter:R_0805 | R20 |
| 1 | 750k | otter:R_0402 | R32 |
| 1 | ACT | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | AO3400 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | AP2204R-3.3 | Package_TO_SOT_SMD:SOT-89-3 | U2 |
| 1 | CON_DATA | Connector_PinHeader_2.00mm:PinHeader_1x08_P2.00mm_Vertical | J6 |
| 1 | CON_PWR | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J5 |
| 1 | DFU | Button_Switch_SMD:SW_SPST_EVQP7C | SW1 |
| 1 | DNP | otter:C_0402 | C28 |
| 1 | IHLE-2525CD | otter:IHLE-2525CD | L1 |
| 1 | M3 | MountingHole:MountingHole_3.2mm_M3_Pad | J7 |
| 1 | MCP9700AT-ETT | Package_TO_SOT_SMD:SOT-23 | U7 |
| 1 | MP8859 | otter:MP8859 | U4 |
| 1 | OPA340NA | Package_TO_SOT_SMD:SOT-23-5 | U8 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | PWR | otter:USB-C 16Pin | J2 |
| 1 | SI8540 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | SS34 | Diode_SMD:D_SOD-123 | D2 |
| 1 | SS8050 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | STM32F072CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U3 |
| 1 | STUSB4500 | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U1 |
| 1 | TC2030 | otter:TC2030 | P1 |
| 1 | USB | otter:USB-C 16Pin | J1 |
| 1 | USBLC6-4 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
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Questions
How big is the OPS PCB?
It measures 49 × 34 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OPS use?
99 parts, built around the OPA340NA, SI8540-B-FW, STUSB4500Q and USBLC6-4. 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 OPS KiCad files?
From the Jana-Marie/OPS repository on GitHub, at the commit this page was made from: the board is OPS.kicad_pcb and its schematic OPS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OPS design in my own project?
Its repository states no licence, so its author keeps all rights: ask Jana-Marie before reusing the design.