2 layers54.5 × 29.5 mm
4 layers68.1 × 102.5 mm
DC PoE Injector
jwpleow/DC_PoE_Injector2Midspan 802.3at PoE Injector, with DC power supply input, in KiCAD
- Size
- 68.1 × 102.5 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 71
- Nets
- 74
- Pads
- 251
- Tracks, vias
- 450, 186
- Pours
- 36
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 21 Jul 2024
- Updated
- 25 Aug 2024
Overview
DC PoE Injector is an open-source printed circuit board by jwpleow, from the jwpleow/DC_PoE_Injector repository on GitHub. It is a 4-layer board of 68.1 × 102.5 mm with 71 parts on 74 nets, routed with 450 tracks and 186 vias.
It is built around the LM5155QDSSRQ1, TPS23861PW and TPS7B8233QDGNRQ1, with the R-RJ45R08P-C000, 2920L110/60MR and CSD19537Q3T among its other parts. Its parts include 30 capacitors, 21 resistors, 4 diodes, 4 connectors and 3 ICs.
Main components
9
LM5155QDSSRQ1
WSON-12-EP(2x3)-40℃~+150℃@(TJ) 1 2.2MHz 2.97V~45V 480uA Adjustable Boost Boost、SEPIC、Flyback External No Overcurrent Protection、Light load efficient mode、Adjustable soft-start、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization WSON-12-EP(2x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Controllers
TPS23861PW
TSSOP-28-40℃~+85℃ 25.5W 3.3V 4 44V~57V IEEE 802.3 at(PoE+) PD detection and disconnect identification、Undervoltage Protection、Thermal Protection、Overcurrent Protection、Dual event classification detection Power Sourcing Equipment (PSE) TSSOP-28 Power Over Ethernet (PoE) Controllers ROHSTexas InstrumentsPower Over Ethernet (PoE) Controllers
TPS7B8233QDGNRQ1
HVSSOP-8-40℃~+150℃@(Tj) 1 3.3V 300mA 40V 450uVrms 5uA 60dB@(100Hz) 900mV@(200mA) Fixed Over Current Protection、Over Temperature Protection Positive HVSSOP-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
R-RJ45R08P-C000
弯插0℃~+70℃ 1 13.1mm 15.75mm 16.26mm Gold Harpoon Contact (Plastic) Non-PoE Phosphor Bronze RJ45 Jack Right Angle Shielded With LED Push-Pull Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSCkmtwEthernet Connectors / Modular Connectors (RJ45 RJ11)
2920L110/60MR
2920-40℃~+85℃ 1.1A 120mΩ 2.2A 20A 2W 2mm 410mΩ 5.44mm 500ms 60V 7.98mm 2920 Resettable Fuses ROHSLittelfuseResettable Fuses
CSD19537Q3T
VSONP-8(3.3x3.3)-55℃~+150℃ 1 N-channel 1.68nF 100V 12.1mΩ@10V 17.3pF 21nC@10V 3.6V 326pF 53A 83W N-Channel VSONP-8(3.3x3.3) MOSFETs ROHSTexas InstrumentsMOSFETs
IRLR3410TRPBF
TO-252-55℃~+175℃ 1 N-channel 100V 155mΩ@4V 160pF 17A 2V 34nC 79W 800pF N-Channel TO-252 MOSFETs ROHSInfineon TechnologiesMOSFETs
SM51625EL
SMD-24P,17.6x12.2mm-40℃~+85℃ 10/100/1000 Base-T 10uH 1:1 Single port SMD-24P,17.6x12.2mm Pulse Transformers(LAN) ROHSBournsPulse Transformers(LAN)
STPS3H100UF
DO-221AA(SMB)1 Independent 100V 1uA@100V 3A 75A 840mV@3A DO-221AA(SMB) Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
README
README.md802.3at PoE Injector, Mode B, with 12-32Vdc Input
It's too hard to find a midspan injector that takes in DC voltage.. (e.g. Phihong POE30D-1ATP-R / POE20D-1AF-R is a little hard to get a hold of)
Disclaimer: Amateur hobbyist-grade work. I've got it printed and assembled by JLCPCB and used it successfully.
JLCPCB Manufacturing Notes
Designed for the 4 Layer JLC04161H-7628 - For 100Ohm impedance - 0.127mm trace spacing, 0.1402mm trace width
Core Components
Ethernet
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| TPS23861 | 802.3at Quad Port Power-over-Ethernet PSE Controller | Datasheet | JLCPCB |
| SM51625EL | LAN 10/100/1000 Base-T (PoE++) Transformer | Datasheet | JLCPCB |
| R-RJ45R08P-C000 | RJ45, Horizontal, Shielded with LED | Datasheet | JLCPCB |
Power
| Part Name | Description | Datasheet | JLCPCB |
|---|---|---|---|
| TPS7B8233QDGNRQ1 | 2.5-40V input, 3.3V 300mA output LDO | Datasheet | JLCPCB |
| LM5155QDSSRQ1 | Boost Converter | Datasheet | JLCPCB |
References
Parts
71| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10n 200V | Capacitor_SMD:C_0805_2012Metric | C4, C5, C6, C7, C8, C9, C10, C11 |
| 8 | 75 | Resistor_SMD:R_0805_2012Metric | R5, R6, R7, R8, R9, R10, R11, R12 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric | C26, C29, C30 |
| 3 | 48k7 | Resistor_SMD:R_0402_1005Metric | R13, R17, R21 |
| 2 | 100n, 100V | Capacitor_SMD:C_0805_2012Metric | C1, C3 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C27, C28 |
| 2 | 1n 2kV | Capacitor_SMD:C_1206_3216Metric | C12, C13 |
| 2 | 2k26 | Resistor_SMD:R_0603_1608Metric | R18, R20 |
| 2 | 4u7 | Capacitor_SMD:C_1206_3216Metric | C15, C16 |
| 2 | 4u7 100V | Capacitor_SMD:C_1210_3225Metric | C18, C19 |
| 2 | 510m 1% | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 2 | 68u 100V | CakeKiCadLib:CP_Elec_12.5x13.5 | C20, C21 |
| 2 | R-RJ45R08P-C000 | CakeKiCadLib:R-RJ45R08P-C000 | J2, J3 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 100n | Resistor_SMD:R_0603_1608Metric | C25 |
| 1 | 100n, 50V | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 100p | Capacitor_SMD:C_0402_1005Metric | C22 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 120k | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 15m | Resistor_SMD:R_2512_6332Metric | R16 |
| 1 | 1n5 | Resistor_SMD:R_0603_1608Metric | C23 |
| 1 | 22.1 | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 2920L110/60MR | Fuse:Fuse_2920_7451Metric | F1 |
| 1 | 47 | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 470n 25V | Capacitor_SMD:C_0603_1608Metric | C24 |
| 1 | 54V Test Points | Connector_Wire:SolderWire-2.5sqmm_1x02_P8.8mm_D2.4mm_OD4.4mm | J4 |
| 1 | 5k76 | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | 68u | CakeKiCadLib:CP_Elec_12.5x13.5 | C14 |
| 1 | 9A 22uH 37mOhm TMPC1265HP-220MG-D | Inductor_SMD:L_TaiTech_TMPC1265_13.5x12.5mm | L1 |
| 1 | CSD19537Q3T | CakeKiCadLib:CSD19537Q3T | Q2 |
| 1 | IRLR3410TRPBF | CakeKiCadLib:TO-252-2-JLCPCB | Q1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | LM5155QDSSRQ1 | CakeKiCadLib:DSS0012x | U2 |
| 1 | PWR IN | Connector_Phoenix_SPT:PhoenixContact_SPT_2.5_2-H-5.0_1x02_P5.0mm_Horizontal | J1 |
| 1 | SM51625EL | CakeKiCadLib:SM51625EL | T1 |
| 1 | SMBJ58A 58V | Diode_SMD:D_SMB | D1 |
| 1 | STPS3H100UF | CakeKiCadLib:D_SMBflat | D3 |
| 1 | TPS23861 | CakeKiCadLib:TPS23861 | U1 |
| 1 | TPS7B8233QDGNRQ1 | CakeKiCadLib:DGN0008G | U3 |
| 1 | TVS3300DRVx | CakeKiCadLib:DRV0006A | D2 |
Similar boards
- 4 layers125 × 70 mm
1000base t1-converter
TLDSJPWORK/1000base-t1-converter
学習用 1000BASE-T1 ↔ 1000BASE-T メディアコンバーター
184 partsCC-BY-4.0 - 4 layers125.5 × 100 mm
- 2 layers37 × 29 mm
B115 4x PoE PSE 13W TPS23861
skunkforce/b115_4x_PoE_PSE_13W_TPS23861
to pull the submodules before opening the project with kicad.
39 partsMIT - 4 layers160 × 110 mm
- 6 layers80.9 × 63 mm
- 2 layers80 × 35.2 mm
Tab5-desk ctrl
wtb04/smart-flexispot
Firmware for an M5Stack Tab5 that drives a Flexispot desk and runs the room around it: Home Assistant, Jellyfin, a radar of the planes overhead, the day's timetable and a focus timer.
19 parts4Apache-2.0 - 2 layers74 × 37 mm
Questions
How big is the DC PoE Injector PCB?
It measures 68.1 × 102.5 mm and has 4 copper layers, 1.61 mm thick.
What parts does the DC PoE Injector use?
71 parts, built around the LM5155QDSSRQ1, TPS23861PW, TPS7B8233QDGNRQ1 and R-RJ45R08P-C000. 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 DC PoE Injector KiCad files?
From the jwpleow/DC_PoE_Injector repository on GitHub, at the commit this page was made from: the board is DC_PoE_Injector.kicad_pcb and its schematic 1_Connectors.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DC PoE Injector design in my own project?
Its repository states no licence, so its author keeps all rights: ask jwpleow before reusing the design.