PDM
About the PDM PCB
PDM is an open source STM32 PCB design by PGRacing, published on GitHub. It is a 2-layer board measuring 203.2 × 82.6 mm, with 284 components from 114 distinct parts.
Its main chip is the STM32L496ZGT6, from the STM32 family. Other key parts include the AT25SF128A-SHB-T, SN65HVD230QDG4Q1, TS5A21366DCUR, TMP126NDCKR and BTS722204ESAXUMA1. By type, the board carries 116 resistors, 87 capacitors, 22 ICs, 19 diodes, 11 transistors and 8 fuses.
It belongs with the sensors and power & battery designs in this gallery.
From the project
Rev 4.3 | ID | NAME | CAUSE |DIFFICULTY | PRIORITY | STATUS | | --- | --- | --- | --- | --- | --- | | 1. | Create test board for BTS50025-1TAE | Switch with higher Rds(on) should perform better in terms of diagnostics on most used loads | 1 | 3 | | | 2. | Create schematic and brd
Rev 4.3 | ID | NAME | CAUSE |DIFFICULTY | PRIORITY | STATUS | | --- | --- | --- | --- | --- | --- | | 1. | Create test board for BTS50025-1TAE | Switch with higher Rds(on) should perform better in terms of diagnostics on most used loads | 1 | 3 | | | 2. | Create schematic and brd for imporoved power delivery section optimized for autmotive use based on MP4322 TLS850F2TAV50, TVS diodes + filtering | Current solution with MP2332 has maximum rating of 18V, which is really for load dumps | 3 | 3 || | 3. | Divide task to "safety critical real-time" hardware based (timer) ones and other normal…
Main components on the PDM
PDM bill of materials (BOM)
284 components, 114 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32L496ZGT6 | QFP50P2200X2200X160-144N | IC1 |
| 1 | AT25SF128A-SHB-T | SOIC127P798X216-8N | IC2 |
| 2 | SN65HVD230QDG4Q1 | SOIC127P600X175-8N | IC3, IC9 |
| 1 | TS5A21366DCUR | SOP50P310X90-8N | IC4 |
| 2 | TMP126NDCKR | SOT65P210X110-6N | IC5, IC6 |
| 2 | BTS722204ESAXUMA1 | SOP65P600X115-25N | IC7, IC8 |
| 2 | LM5050MK-1/NOPB LM5050MK-1_NOPB | SOT95P280X110-6N | IC12, IC13 |
| 1 | TLE9104SHXUMA1 | SOP50P1030X260-21N | IC14 |
| 4 | AQY221R4VY VNF1048FTR | QFN32L_5x5_STM | U1, U4, U5, U6 |
| 2 | MCP2561-E-SN | SOIC-8_3.9x4.9mm_P1.27mm | U2, U3 |
| 1 | MP4322GDE-P VNF1048FTR | QFN32L_5x5_STM | U7 |
| 3 | MCP6002-XMC VNF1048FTR | QFN32L_5x5_STM | U8, U9, U10 |
| 1 | SI2319CDS MMBT3904 | SOT-23 | Q1 |
| 2 | IAUA250N04S6N007AUMA1 | IAUA250N04S6N007AUMA1 | Q2, Q3 |
| 6 | STL135N8F7AG | STL135N8F7AG | Q4, Q5, Q6, Q7, Q8, Q9 |
| 2 | STL225N6F7AG | POWERFLAT_5X6 | Q10, Q11 |
| 1 | 16MHZ 48Mhz | Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | 32KHZ 32KHz | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | 6473427-1 | 64734271 | J2 |
| 1 | N01 036 6501 001 N01_036_6501_001 | N010366501001 | J3 |
Show 94 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 40A | Fuse_2512_6332Metric | F1, F2, F3 |
| 5 | 40A | Fuse_2512_6332Metric | F4, F5, F6, F7, F8 |
| 1 | SOLDERJUMPER_3_OPEN SolderJumper_3_Open | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 8 | 1m | R_2512_6332Metric | RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8 |
| 8 | B57232V5103F360 | THRMC1005X60N | RT1, RT2, RT3, RT4, RT5, RT6, RT7, RT8 |
| 5 | BAT54SW BAT54BRW-7-F | SOT65P210X110-6N | D3, D6, D7, D8, D9 |
| 2 | BAT54SW 7V | D_0805_2012Metric | D4, D5 |
| 3 | WS2812B-2020 BAT54BRW-7-F | SOT65P210X110-6N | D10, D20, D21 |
| 9 | WS2812B-2020 WS2812B | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D11, D12, D13, D14, D15, D16, D17, D18 +1 |
| 1 | 100NF 4u7 | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2 |
| 1 | 1UF 10pF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3 |
| 1 | 4.7UF 1u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C4 |
| 1 | 1UF 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5 |
| 2 | 10UF 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C6, C8 |
| 1 | 10UF 10pF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C7 |
| 1 | 10UF 1uF | C_0805_2012Metric | C9 |
| 3 | 10UF 470nF | C_0805_2012Metric | C10, C11, C12 |
| 1 | 10UF 0,1mF | C_0805_2012Metric | C13 |
| 1 | 10nf | C_0805_2012Metric | C14 |
| 4 | 10NF 10nf | C_0805_2012Metric | C15, C16, C17, C24 |
| 1 | 220PF 220pF | C_0402_1005Metric | C18 |
| 2 | 470NF 470nF | C_0805_2012Metric | C19, C68 |
| 6 | 100NF 100nF | C_0805_2012Metric | C20, C49, C64, C76, C82, C95 |
| 1 | 100PF/50V 220pF | C_0402_1005Metric | C21 |
| 1 | 100NF/50V 470nF | C_0805_2012Metric | C22 |
| 1 | 1NF 100nF | C_0805_2012Metric | C23 |
| 2 | 2.2UF 10nf | C_0805_2012Metric | C25, C26 |
| 1 | 22UF 10nf | C_0805_2012Metric | C27 |
| 2 | 4.7UF 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C28, C29 |
| 2 | 100NF 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C30, C31 |
| 8 | 47NF 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C32, C33, C34, C35, C36, C37, C38, C39 |
| 5 | 100NF 20uF | C_0805_2012Metric | C48, C69, C81, C87, C93 |
| 4 | 100NF 1uF | C_0805_2012Metric | C50, C65, C77, C89 |
| 10 | 100NF 470nF | C_0805_2012Metric | C51, C52, C53, C66, C74, C78, C79, C80 +2 |
| 1 | 1u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C54 |
| 1 | 10pF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C55 |
| 1 | 47NF 10pF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C56 |
| 1 | 10PF 1uF | C_0805_2012Metric | C57 |
| 2 | 22UF 470nF | C_0805_2012Metric | C58, C59 |
| 2 | 1UF 470nF | C_0805_2012Metric | C60, C90 |
| 1 | 10UF 20uF | C_0805_2012Metric | C61 |
| 1 | 10UF 100nF | C_0805_2012Metric | C62 |
| 1 | 2.2UF 20uF | C_0805_2012Metric | C63 |
| 1 | 220PF 470nF | C_0805_2012Metric | C67 |
| 2 | 10NF 100nF | C_0805_2012Metric | C70, C94 |
| 1 | 10NF 1uF | C_0805_2012Metric | C71 |
| 2 | 10NF 470nF | C_0805_2012Metric | C72, C73 |
| 1 | 10NF 20uF | C_0805_2012Metric | C75 |
| 1 | 1UF 1uF | C_0805_2012Metric | C83 |
| 2 | 10PF 470nF | C_0805_2012Metric | C84, C85 |
| 1 | 1000UF 100nF | C_0805_2012Metric | C88 |
| 1 | 4.7UF 470nF | C_0805_2012Metric | C92 |
| 1 | 100NF 0,1mF | C_0805_2012Metric | C96 |
| 1 | 0OHM 1k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2 |
| 1 | 0OHM 1.2k | R_0402_1005Metric | R3 |
| 1 | 0OHM 4.7k | R_0402_1005Metric | R4 |
| 14 | 1.2k | R_0402_1005Metric | R5, R6, R7, R8, R54, R55, R67, R71 +6 |
| 12 | 4.7K 1.2k | R_0402_1005Metric | R9, R38, R96, R102, R103, R104, R106, R111 +4 |
| 3 | 2.3K 10k | R_0402_1005Metric | R10, R18, R89 |
| 12 | 10K 1.2k | R_0402_1005Metric | R11, R35, R36, R46, R47, R50, R56, R57 +4 |
| 2 | 10K 47k | R_0402_1005Metric | R12, R90 |
| 3 | 2.3K 4.7k | R_0402_1005Metric | R13, R34, R92 |
| 7 | 2.3K 1.2k | R_0402_1005Metric | R14, R37, R45, R48, R49, R53, R88 |
| 6 | 10K 4.7k | R_0402_1005Metric | R15, R39, R40, R41, R42, R74 |
| 1 | 10K 120 | R_0402_1005Metric | R16 |
| 1 | 2.3K 120 | R_0402_1005Metric | R17 |
| 2 | 10K 10k | R_0402_1005Metric | R19, R51 |
| 15 | 1.2K 1.2k | R_0402_1005Metric | R20, R21, R22, R23, R31, R44, R70, R75 +7 |
| 7 | 4.7K 4.7k | R_0402_1005Metric | R24, R25, R26, R27, R30, R101, R110 |
| 1 | 47 | R_0402_1005Metric | R28 |
| 1 | 470 | R_0402_1005Metric | R29 |
| 1 | 10K 47 | R_0402_1005Metric | R32 |
| 1 | 2.3K 470 | R_0402_1005Metric | R33 |
| 1 | EXB-2HV472JV 1.2k | R_0402_1005Metric | R43 |
| 1 | 2.3K 47k | R_0402_1005Metric | R52 |
| 1 | 120 10k | R_0402_1005Metric | R58 |
| 1 | 120 47k | R_0402_1005Metric | R59 |
| 1 | 15K 4.7k | R_0402_1005Metric | R62 |
| 1 | 100K 4.7k | R_0402_1005Metric | R63 |
| 1 | 100K 1.2k | R_0402_1005Metric | R64 |
| 2 | 1K5 1.2k | R_0402_1005Metric | R66, R109 |
| 2 | 1.2K 4.7k | R_0402_1005Metric | R68, R83 |
| 1 | 4.7k | R_0402_1005Metric | R69 |
| 1 | 1k | R_0402_1005Metric | R72 |
| 1 | 10k | R_0402_1005Metric | R80 |
| 2 | 1.2K 47k | R_0402_1005Metric | R81, R99 |
| 1 | 470 1.2k | R_0402_1005Metric | R95 |
| 1 | 1.2K 10k | R_0402_1005Metric | R98 |
| 1 | 4.7K 10k | R_0402_1005Metric | R107 |
| 1 | 1K5 47k | R_0402_1005Metric | R108 |
| 1 | 0OHM 10k | R_0402_1005Metric | R116 |
| 1 | 0OHM 47k | R_0402_1005Metric | R117 |
| 1 | 0OHM 120 | R_0402_1005Metric | R118 |
| 1 | 0OHM 0 | R_0402_1005Metric | R119 |
PDM design files
The KiCad project lives in the PGRacing/PDM repository on GitHub; these links point at the commit this page was built from.
PDM: common questions
What microcontroller does the PDM use?
The PDM is built around the STM32L496ZGT6, from the STM32 family.
How big is the PDM PCB?
The PDM measures 203.2 × 82.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PDM?
284 components, from 114 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the PDM design files?
From the PGRacing/PDM repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the PDM design in my own project?
The repository has no license, so all rights stay with PGRacing. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the PDM without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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