NVM-RP-CHG
About the NVM-RP-CHG PCB
NVM-RP-CHG is an open source PCB design by curtisseizert, published on GitHub. It is a 4-layer board measuring 105.4 × 54.6 mm, with 55 components from 24 distinct parts.
Other key parts include the BQ24618. By type, the board carries 20 resistors, 18 capacitors, 4 transistors, 4 diodes, 2 connectors and 1 IC.
It belongs with the power & battery and test & measurement designs in this gallery.
From the project
A low noise nanovoltmeter design files and code
The design includes five boards: 1. The nanovoltmeter main board 2. A SMPS daughter board to downconvert the battery voltage to the various power rails used in the design 3. A battery board with BMS for 4S 21700 cells 4. A rear panel board with battery charger 5. A front panel
This repository will also include the source code for the STM32U575 microcontroller that interfaces with the various peripherals.
Main components on the NVM-RP-CHG
NVM-RP-CHG bill of materials (BOM)
55 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ24618 | HVQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U1 |
| 2 | SiS443DN | Vishay_PowerPAK_1212-8_Single | Q1, Q2 |
| 2 | SiS106DN | Vishay_PowerPAK_1212-8_Single | Q3, Q4 |
| 1 | Barrel_Jack | BarrelJackDC_Switchcraft721_712 | J1 |
| 1 | Molex Micro-Fit 3.0 43045-0618 | Molex_Micro-Fit_3.0_43045-0618_2x03-1MP_P3.00mm_Vertical | J2 |
| 1 | MountingHole | PanelCutout_6.5mm_PTH | H5 |
| 1 | USB_Mounting_Hole | PANEL_CUTOUT_MUSBK15230 | H6 |
| 1 | SMA_Mounting_Hole | SMA_PanelMount | H7 |
| 1 | G6K-2F-Y DC24 | Relay_DPDT_Omron_G6K-2F-Y | K1 |
| 1 | SW_SPDT | TestPoint_3Pads | SW1 |
| 2 | LED | LED_Osram_Lx_P47F_D2mm_ReverseMount | D1, D2 |
| 2 | NSR0340 | D_SOD-523 | D3, D4 |
| 1 | XGL6060-123 | L_Coilcraft_XAL60xx_6.36x6.56mm | L1 |
| 9 | 1uF X5R | C_0402_1005Metric | C1, C3, C5, C6, C7, C8, C9, C11 +1 |
| 4 | 10uF | C_1206_3216Metric_Red | C2, C10, C13, C14 |
| 1 | 47nF C0G | C_0805_2012Metric_Red_outline | C4 |
| 1 | 22pF | C_0402_1005Metric | C15 |
| 3 | 10uF/50V | C_0805_2012Metric_Red_outline | C16, C17, C18 |
| 5 | 13k7 | R_0402_1005Metric | R1, R2, R7, R9, R11 |
| 3 | 2R | R_0603_1608Metric_red | R3, R13, R16 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | 100k | R_0402_1005Metric | R4, R5, R6, R8, R10, R12, R14, R20 |
| 1 | 1k | R_0402_1005Metric | R15 |
| 2 | 0R01 | R_1206_3216Metric | R17, R18 |
| 1 | 680k | R_0402_1005Metric | R19 |
NVM-RP-CHG design files
The KiCad project lives in the curtisseizert/Nanovoltmeter repository on GitHub; these links point at the commit this page was built from.
NVM-RP-CHG: common questions
How big is the NVM-RP-CHG PCB?
The NVM-RP-CHG measures 105.4 × 54.6 mm, has 4 copper layers and is 1.57 mm thick.
How many components are on the NVM-RP-CHG?
55 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the NVM-RP-CHG design files?
From the curtisseizert/Nanovoltmeter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the NVM-RP-CHG design in my own project?
The repository has no license, so all rights stay with curtisseizert. Use it as a reference, and ask the author before reusing the design.
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