EPS Scales RevC
About the EPS Scales RevC PCB
EPS Scales RevC is an open source PCB design by BroncoSpace-Lab, published on GitHub. It is a 4-layer board measuring 95.2 × 66 mm, with 194 components from 52 distinct parts.
Other key parts include the LTC4365, LT8638SEVPBF, INA230, TLV1704AQPWRQ1 and LT8638S. By type, the board carries 93 resistors, 62 capacitors, 14 ICs, 10 connectors, 9 diodes and 3 jumpers.
It belongs with the sensors designs in this gallery.
From the project
Hardware design files for the Spacecraft Compartmentalized Autonomous Learning and Edge Computing System (SCALES)
This is the third board of the SCALES EPS. It is based on the RevF schematic which yields the Viking 1-C Board. This board improves on the success of the 1-B board and implements some minor improvements that prevented the Peripheral and Jetson subsystem from activating correctly.
List of Changes in Viking 1-C After Production Errors in Viking 1-B
- Removed R48 - Removed R83 - The above mentioned resistors caused too low of a voltage to fully enable the En pins on the load switches, and by simply removing them we can successfully drive the load switches on using GPIO pins. - Added 3 MCP9808…
Main components on the EPS Scales RevC
EPS Scales RevC bill of materials (BOM)
194 components, 52 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | LTC4365 | LTC4365 | U1, U5, U10 |
| 1 | LT8638SEVPBF | LT8638SEVPBF | U2 |
| 3 | INA230 | INA230AIRGTT | U3, U8, U12 |
| 3 | TLV1704AQPWRQ1 TLV1704 Texas Instruments | TSSOP-14_4.4x5mm_P0.65mm | U4, U13, U14 |
| 2 | LT8638S | LT8638SEVPBF | U6, U11 |
| 1 | LTC6902 | LTC6902 | U7 |
| 1 | TCA4307DGKR | VSSOP-8_L3.0-W3.0-P0.65-LS4.9-BL | U9 |
| 1 | Input Power | AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J1 |
| 3 | DF11-16DP-2DSA | DF1116DP2DSA08 | J6, J10, J12 |
| 3 | DN-T1-GE3_VIS | SISB46DN-T1-GE3 | J7, J11, J15 |
| 3 | Conn_01x04 | PinSocket_1x04_P2.54mm_Vertical | J8, J16, J18 |
| 3 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP4, JP5 |
| 6 | 1N4151WS-E3-08 1N4151WS Vishay | SODFL2512X100N | D1, D3, D7, D9, D10, D12 |
| 3 | 150060GS75000 GREEN Wurth | LED_0603_1608Metric | D2, D8, D11 |
| 1 | 10u | IND-SMD_L13.8-W12.6_MHCC12050 | L3 |
| 1 | 2.2u | XEL6030 | L4 |
| 1 | 3.3u | XEL6030 | L5 |
| 15 | 10u | C_1210_3225Metric | C1, C2, C3, C5, C14, C15, C17, C25 +7 |
| 3 | 22u | C_1210_3225Metric | C4, C23, C43 |
| 3 | 1u | C_0603_1608Metric | C6, C24, C44 |
Show 32 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 100n | C_0603_1608Metric | C7 |
| 6 | 1u | C_1210_3225Metric | C8, C16, C28, C36, C47, C55 |
| 2 | 220p | C_0603_1608Metric | C9, C27 |
| 5 | 0.1u | C_1210_3225Metric | C10, C29, C30, C37, C49 |
| 6 | 47u | C_1210_3225Metric | C12, C13, C32, C33, C51, C52 |
| 15 | GRT188R61C106KE13D 10u Murata | C_1210_3225Metric | C18, C19, C20, C21, C22, C57, C58, C59 +7 |
| 1 | 10n | C_0603_1608Metric | C26 |
| 3 | 22p | C1206 | C31, C38, C39 |
| 1 | 20n | C_0603_1608Metric | C46 |
| 1 | 1n | C_0603_1608Metric | C48 |
| 3 | 12.9M | R_0603_1608Metric | R1, R28, R57 |
| 3 | 110k | R_0603_1608Metric | R2, R29, R58 |
| 3 | 190k | R_0603_1608Metric | R3, R30, R59 |
| 2 | 1k | R_0603_1608Metric | R4, R60 |
| 5 | 100k | R_0603_1608Metric | R5, R8, R31, R39, R61 |
| 10 | 10k | R_0603_1608Metric | R6, R32, R42, R43, R44, R45, R46, R47 +2 |
| 3 | 105k | R_0603_1608Metric | R7, R33, R63 |
| 2 | 3.0k | R_0603_1608Metric | R9, R65 |
| 3 | 10m | R_2512_6332Metric | R10, R38, R66 |
| 3 | ESR18EZPF10R0 10 (1206) Rohm Semiconductor | R_1206_3216Metric | R11, R67, R84 |
| 15 | RMCF0603FT10K0 10k Stackpole Electronics Inc | R_0603_1608Metric | R12, R13, R14, R18, R19, R68, R69, R70 +7 |
| 9 | RMCF0603FT3K00 3.0k Stackpole Electronics Inc | R_0603_1608Metric | R15, R16, R17, R71, R72, R73, R88, R89 +1 |
| 6 | RMCF0603FT1K00 1k Stackpole Electronics Inc | R_0603_1608Metric | R20, R22, R76, R78, R93, R95 |
| 16 | RMCF0603FT100K 100k Stackpole Electronics Inc | R_0603_1608Metric | R21, R23, R24, R25, R27, R77, R79, R80 +8 |
| 3 | RMCF0603FT4M70 4.7M Stackpole Electronics Inc | R_0603_1608Metric | R26, R82, R99 |
| 1 | 14k | R_0603_1608Metric | R34 |
| 1 | 17k | R_0603_1608Metric | R35 |
| 1 | 25k | R_0603_1608Metric | R36 |
| 1 | 5.5k | R_0603_1608Metric | R37 |
| 1 | 150k | R_0603_1608Metric | R40 |
| 1 | 50k | R_0603_1608Metric | R41 |
| 1 | 22k | R_0603_1608Metric | R64 |
EPS Scales RevC design files
The KiCad project lives in the BroncoSpace-Lab/scales-hardware repository on GitHub; these links point at the commit this page was built from.
EPS Scales RevC: common questions
How big is the EPS Scales RevC PCB?
The EPS Scales RevC measures 95.2 × 66 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the EPS Scales RevC?
194 components, from 52 distinct parts. The full bill of materials is listed on this page.
Where can I download the EPS Scales RevC design files?
From the BroncoSpace-Lab/scales-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EPS Scales RevC design in my own project?
The repository has no license, so all rights stay with BroncoSpace-Lab. Use it as a reference, and ask the author before reusing the design.
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