# RTK CM4 CARRRIER FIX ## Description Industrial Raspberry Pi CM4/CM5-compatible RTK base-station carrier with PoE+, external DC input, BQ25750 2S Li-ion UPS, USB hub, Mosaic-X5 mPCIe GNSS, Quectel EM05 LTE, Ethernet, watchdog, protection, and JLCPCB-focused manufacturing constraints. ## Project Details - **Owner:** jakenorthern1 - **Created:** 7/23/2026 - **Last Updated:** 7/23/2026 - **Visibility:** Public - **Implementation Details:** CM4/CM5-compatible RTK carrier with PoE+, DC input, 2S Li-ion UPS, LTE, Mosaic-X5 mPCIe GNSS, USB hub, and industrial protection. - **Software:** Linux - **Operating Temperature:** Industrial - **Operating Voltage:** 12V - **Domain:** Industrial/Manufacturing - **Connectivity:** Ethernet - **Power Requirements:** Power-over-Ethernet ## Key Components ### BR_POE_A — [DF01S](https://www.flux.ai/lcsc/df01s~nt27.md) - Manufacturer Name: onsemi(安森美) - Role Details: DF01S bridge rectifier per Silvertel AG5300 typical connection; rectifies one PoE center-tap group into VIN+/VIN-. - Functional Group: Ethernet PoE - Package or Case Code: DIO-BG-SMD_4P-L8.3-W6.4-P5.10-LS10.4-TL - Role: Rectification - Part Type: Bridge Rectifiers - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1912111437_onsemi-DF01S_C124477.pdf - LCSC Part Number: C124477 - Product Info Url: https://lcsc.com/product-detail/Bridge-Rectifiers_ON-Semicon-ON-DF01S_C124477.html - Manufacturer Part Number: DF01S **Pins:** - - [pin 2] - + [pin 1] - AC [pin 4] - AC [pin 3] ### BR_POE_B — [DF01S](https://www.flux.ai/lcsc/df01s~nt27.md) - Manufacturer Name: onsemi(安森美) - Package or Case Code: DIO-BG-SMD_4P-L8.3-W6.4-P5.10-LS10.4-TL - Role Details: DF01S bridge rectifier per Silvertel AG5300 typical connection; rectifies second PoE center-tap group into VIN+/VIN-. - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1912111437_onsemi-DF01S_C124477.pdf - JLCPCB Part Class: Extended Part - Part Type: Bridge Rectifiers - Functional Group: Ethernet PoE - Product Info Url: https://lcsc.com/product-detail/Bridge-Rectifiers_ON-Semicon-ON-DF01S_C124477.html - LCSC Part Number: C124477 - Role: Rectification - Manufacturer Part Number: DF01S **Pins:** - - [pin 2] - + [pin 1] - AC [pin 4] - AC [pin 3] ### D_CHG_ACDRV_Z — [BZT52C15S-7-F](https://www.flux.ai/lcsc/bzt52c15s-7-f~d94z.md) - Role Details: 15V Zener clamp from ACDRV gate net to ACFET common source per BQ25750 pin description. - Functional Group: Battery UPS - Manufacturer Part Number: BZT52C15S-7-F - Product Info Url: https://lcsc.com/product-detail/Others_Diodes-Incorporated_BZT52C15S-7-F_Diodes-Incorporated-BZT52C15S-7-F_C260889.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-BZT52C15S-7-F_C260889.pdf - Manufacturer Name: DIODES(美台) - LCSC Part Number: C260889 - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Package or Case Code: SOD-323_L1.8-W1.3-LS2.5-RD - Role: Clamping **Pins:** - A [pin 2] - K [pin 1] ### D_DC_IN_TVS — [SMBJ15A-13-F](https://www.flux.ai/lcsc/smbj15a-13-f~8gof.md) - Functional Group: PoE/DC Input - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Role Details: SMBJ15A unidirectional TVS on external DC protected input; final external DC range/surge review required. - Manufacturer Part Number: SMBJ15A-13-F - LCSC Part Number: C135046 - Part Type: TVS - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ15A-13-F_SMBJ15A-13-F_C135046.html - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ15A-13-F_C135046.pdf - Manufacturer Name: DIODES(美台) - Role: TVS Protection **Pins:** - A [pin 2] - K [pin 1] ### D_ESD_ETH_A — [TPD4E05U06DQAR](https://www.flux.ai/lcsc/tpd4e05u06dqar~l929.md) - LCSC Part Number: C138714 - Manufacturer Part Number: TPD4E05U06DQAR - Datasheet URL: https://www.lcsc.com/datasheet/C138714.pdf?spm=wm.sxq.inf.ggs&utm_source=octopart&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRT1FdVFBSRFVdVDsOAxUeFF5JWA4NEwsWFhMaSQcJGk4%3D - Functional Group: Ethernet PoE - Role: Protection - Manufacturer Name: TI - Part Type: ESD Protection Devices - JLCPCB Part Class: Extended Part - Operating Temperature: -40℃~+125℃@(Ta) - Role Details: TI TPD4E05U06 4-channel low-capacitance ESD array on CM4 Ethernet pairs 0 and 1; place close to RJ45/magnetics side during layout. - Package or Case Code: DFN2510-10_L2.5-W1.0-P0.50-BL **Pins:** - D1- [pin 2] - D1+ [pin 1] - D2- [pin 5] - D2+ [pin 4] - GND [pin 3] - GND [pin 8] - NC [pin 9] - NC [pin 10] - NC [pin 7] - NC [pin 6] ### D_ESD_ETH_B — [TPD4E05U06DQAR](https://www.flux.ai/lcsc/tpd4e05u06dqar~l929.md) - LCSC Part Number: C138714 - Manufacturer Part Number: TPD4E05U06DQAR - Datasheet URL: https://www.lcsc.com/datasheet/C138714.pdf?spm=wm.sxq.inf.ggs&utm_source=octopart&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRT1FdVFBSRFVdVDsOAxUeFF5JWA4NEwsWFhMaSQcJGk4%3D - Role Details: TI TPD4E05U06 4-channel low-capacitance ESD array on CM4 Ethernet pairs 2 and 3; place close to RJ45/magnetics side during layout. - Manufacturer Name: TI - Part Type: ESD Protection Devices - JLCPCB Part Class: Extended Part - Role: Protection - Operating Temperature: -40℃~+125℃@(Ta) - Functional Group: Ethernet PoE - Package or Case Code: DFN2510-10_L2.5-W1.0-P0.50-BL **Pins:** - D1- [pin 2] - D1+ [pin 1] - D2- [pin 5] - D2+ [pin 4] - GND [pin 3] - GND [pin 8] - NC [pin 9] - NC [pin 10] - NC [pin 7] - NC [pin 6] ### D_ESD_SIM — [PESD3V3L5UY](https://www.flux.ai/kicad-part-library/pesd3v3l5uy~ysh.md) - Role: Protection - Manufacturer Part Number: PESD3V3L5UY - Role Details: SIM_VCC, SIM_CLK, SIM_DATA, SIM_RST, SIM_DET ESD protection; final pin mapping to be verified against footprint before layout. - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/PESDXL5UF_V_Y.pdf - Package or Case Code: SOT-363_SC-70-6 - Functional Group: SIM Protection **Pins:** - A [pin 2] - K1 [pin 1] - K2 [pin 3] - K3 [pin 4] - K4 [pin 5] - K5 [pin 6] ### D_ESD_USB_LTE — [USBLC6-2P6](https://www.flux.ai/lcsc/usblc6-2p6~ubvn.md) - Datasheet URL: https://www.lcsc.com/datasheet/C2827693.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeUFNeTlhdXjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Package or Case Code: SOT-666-6_L1.6-W1.2-P0.50-LS1.6-BL - Symbol Style: parametric-v1 - Role: Protection - Role Details: USB 2.0 high-speed low-capacitance ESD protection on USB_LTE_D_P/N, per Quectel EM05 guide. - Manufacturer Part Number: USBLC6-2P6 - LCSC Part Number: C2827693 - JLCPCB Part Class: Extended Part - Functional Group: LTE USB Protection - Part Type: ESD Protection Devices - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: TECH PUBLIC(台舟) **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D_ESD_USB_MOSAIC — [USBLC6-2P6](https://www.flux.ai/lcsc/usblc6-2p6~ubvn.md) - Functional Group: GNSS USB Protection - JLCPCB Part Class: Extended Part - Manufacturer Part Number: USBLC6-2P6 - LCSC Part Number: C2827693 - Symbol Style: parametric-v1 - Role Details: USB 2.0 high-speed low-capacitance ESD protection on USB_MOSAIC_D_P/N. - Datasheet URL: https://www.lcsc.com/datasheet/C2827693.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeUFNeTlhdXjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Package or Case Code: SOT-666-6_L1.6-W1.2-P0.50-LS1.6-BL - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: TECH PUBLIC(台舟) - Part Type: ESD Protection Devices - Role: Protection **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D_ESD_USB_SERVICE — [USBLC6-2P6](https://www.flux.ai/lcsc/usblc6-2p6~ubvn.md) - Part Type: ESD Protection Devices - Manufacturer Name: TECH PUBLIC(台舟) - Role Details: Low-capacitance USB 2.0 ESD protection for service-port USB_SERVICE_D_P/N if routed to an accessible internal/service connector. - License: https://creativecommons.org/licenses/by/4.0/ - LCSC Part Number: C2827693 - Functional Group: USB Hub - Manufacturer Part Number: USBLC6-2P6 - JLCPCB Part Class: Extended Part - Package or Case Code: SOT-666-6_L1.6-W1.2-P0.50-LS1.6-BL - Datasheet URL: https://www.lcsc.com/datasheet/C2827693.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeUFNeTlhdXjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Role: Protection - Symbol Style: parametric-v1 **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D_LTE_3V3_TVS — [SMF5.0A-T13](https://www.flux.ai/lcsc/smf5p0a-t13~mzez.md) - Datasheet URL: https://www.lcsc.com/datasheet/C1977665.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNeR1VbVlRXR1ZbVzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Role Details: Low-voltage TVS for EM05 VCC rail. Quectel suggests about 4.7V VRWM; selected library part is 5.0V class and remains final-review item. - Functional Group: LTE Power - Part Type: TVS - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SMF5.0A-T13 - Role: TVS Protection - Package or Case Code: SOD-123F_L2.7-W1.7-LS3.6-RD - LCSC Part Number: C1977665 - Manufacturer Name: Littelfuse(美国力特) - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### D_POE_12V_TVS — [SMBJ15A-13-F](https://www.flux.ai/lcsc/smbj15a-13-f~8gof.md) - Functional Group: PoE/DC Input - Role Details: SMBJ15A unidirectional TVS on protected PoE 12V output; final clamp/surge review required. - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ15A-13-F_SMBJ15A-13-F_C135046.html - Role: TVS Protection - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ15A-13-F_C135046.pdf - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SMBJ15A-13-F - LCSC Part Number: C135046 - Part Type: TVS - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD **Pins:** - A [pin 2] - K [pin 1] ### D_POE_IN_TVS — [SMAJ58CA-13-F](https://www.flux.ai/lcsc/smaj58ca-13-f~uzyf.md) - Manufacturer Part Number: SMAJ58CA-13-F - Manufacturer Name: DIODES(美台) - Package or Case Code: SMA_L4.4-W2.6-LS5.0-BI - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMAJ58CA-13-F_SMAJ58CA-13-F_C134998.html - LCSC Part Number: C134998 - Functional Group: Ethernet PoE - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMAJ58CA-13-F_C134998.pdf - Role Details: SMAJ58CA bidirectional TVS across AG5300 VIN+ and VIN- per Silvertel input protection recommendation for transients over 80 V. - JLCPCB Part Class: Extended Part - Role: Clamping - Part Type: TVS **Pins:** - 1 [pin 1] - 2 [pin 2] ### F_BAT — [1812L400/16GR](https://www.flux.ai/adrian95/1812l40016gr~dak.md) - Role: Protection - Datasheet URL: https://www.lcsc.com/datasheet/C22374900.pdf - Part Type: Fuse - Manufacturer Name: LUTE - LCSC Part Number: C22374900 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Battery positive PTC fuse, 16 V, 4 A hold / 8 A trip; allows Zeus 3 A continuous / 4 A pulse while protecting board-side faults. - Manufacturer Part Number: 1812L400/16GR - Functional Group: Battery UPS **Pins:** - P1 [pin 1] - P2 [pin 2] ### FB_POE_IN_N — [MPZ2012S102JTD25](https://www.flux.ai/lcsc/mpz2012s102jtd25~mmfc.md) - LCSC Part Number: C307777 - Manufacturer Name: TDK - Manufacturer Part Number: MPZ2012S102JTD25 - Part Type: Ferrite Beads - Functional Group: Ethernet PoE - Role: Choke (EMI Filter) - JLCPCB Part Class: Extended Part - Package or Case Code: L0805 - Role Details: TDK MPZ2012S102J ferrite bead provision on rectified PoE VIN- path following Silvertel EMC-filter concept. **Pins:** - 1 [pin 1] - 2 [pin 2] ### FB_POE_IN_P — [MPZ2012S102JTD25](https://www.flux.ai/lcsc/mpz2012s102jtd25~mmfc.md) - Manufacturer Part Number: MPZ2012S102JTD25 - Manufacturer Name: TDK - LCSC Part Number: C307777 - Package or Case Code: L0805 - JLCPCB Part Class: Extended Part - Role: Choke (EMI Filter) - Functional Group: Ethernet PoE - Part Type: Ferrite Beads - Role Details: TDK MPZ2012S102J ferrite bead provision on rectified PoE VIN+ path following Silvertel EMC-filter concept. **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_BAT — [22-23-2031](https://www.flux.ai/jecstronic/22-23-2031~hu.md) - Functional Group: Battery UPS - Manufacturer Part Number: 0022232031 - Role Details: Molex KK254 22-23-2031 mating header for Zeus PCLI18650-260-2S2P factory pack: pin 1 red BAT+, pin 2 white 10k/B3380 NTC, pin 3 black BAT-. Keyed/polarized connector is primary reverse-polarity protection; series PTC protects board-side faults. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Molex - Datasheet URL: https://www.molex.com/pdm_docs/sd/022232031_sd.pdf - Part Type: Connector - Role: Protection **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J_DC_IN — [DG250-3.5-02P-11-00A(H)](https://www.flux.ai/adrian95/dg250-3p5-02p-11-00ah~77l.md) - Role Details: 2-position 3.5mm pitch Degson 5A terminal block for external 12V input; pin 1 DC+, pin 2 GND. Feeds existing DC_RAW protection and LM74700 DC ideal-diode path. - Datasheet URL: https://www.tme.com/Document/74a50bb60bd70b3c953bc54e89073085/DG250-3.5.pdf - Role: Connection - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: Degson - Functional Group: External DC Input - Manufacturer Part Number: DG250-3.5-02P-11-00A(H) **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_ETH — [LPJG0926HENL](https://www.flux.ai/adrian95/lpjg0926henl~22f.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.l-p.com/file/datasheet/lpjg0926henl.pdf - Role Details: LPJG0926HENL shielded RJ45 MagJack, 1000BASE-T integrated 1CT:1CT magnetics for PoE+; center taps feed Silvertel AG5300 bridge rectifiers. - Part Type: Connector - Role: Protection - Package or Case Code: LPJG0926HENL - Manufacturer Part Number: LPJG0926HENL - Manufacturer Name: LINK-PP - Functional Group: Ethernet PoE **Pins:** - A_GREEN [pin 15] - A_YELLOW [pin 17] - K_GREEN [pin 16] - K_YELLOW [pin 18] - MH3 [pin MH3] - MH4 [pin MH4] - TD1- [pin 2] - TD1+ [pin 1] - TD2-_1 [pin 4] - TD2-_2 [pin 5] - TD2-_3 [pin 6] - TD2+ [pin 3] - TD3- [pin 8] - TD3+ [pin 7] - TD4- [pin 10] - TD4+ [pin 9] - VC1 [pin 11] - VC2 [pin 12] - VC3 [pin 13] - VC4 [pin 14] ### J_M2_LTE — [MDT320B03001](https://www.flux.ai/adrian95/mdt320b03001~iw5.md) - Connector Gender: Female - Manufacturer Name: Amphenol ICC / FCI - Connector Pitch: 0.50mm - Connector Rows: 2 - Connector Positions: 67 - Part Type: Connector - Functional Group: LTE - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: M.2 B-key LTE modem socket; verify keying/mechanical fit against EM05 hardware guide - Manufacturer Part Number: MDT320B03001 - Role: Connection - Connector Type: Card Edge Connectors - Datasheet URL: https://cdn.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/ssio/ssio_pcie_m2.pdf **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 2 [pin 2] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 33 [pin 33] - 34 [pin 34] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 38 [pin 38] - 39 [pin 39] - 4 [pin 4] - 40 [pin 40] - 41 [pin 41] - 42 [pin 42] - 43 [pin 43] - 44 [pin 44] - 45 [pin 45] - 46 [pin 46] - 47 [pin 47] - 48 [pin 48] - 49 [pin 49] - 5 [pin 5] - 50 [pin 50] - 51 [pin 51] - 52 [pin 52] - 53 [pin 53] - 54 [pin 54] - 55 [pin 55] - 56 [pin 56] - 57 [pin 57] - 58 [pin 58] - 59 [pin 59] - 6 [pin 6] - 60 [pin 60] - 61 [pin 61] - 62 [pin 62] - 63 [pin 63] - 64 [pin 64] - 65 [pin 65] - 66 [pin 66] - 67 [pin 67] - 68 [pin 68] - 69 [pin 69] - 7 [pin 7] - 70 [pin 70] - 71 [pin 71] - 72 [pin 72] - 73 [pin 73] - 74 [pin 74] - 75 [pin 75] - 8 [pin 8] - 9 [pin 9] - MH1 [pin MH1] - MH2 [pin MH2] - MP1 [pin MP1] - MP2 [pin MP2] ### J_MPCIE_GNSS — [1759547-1](https://www.flux.ai/adrian95/1759547-1~rt.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: TE Connectivity AMP Connectors - Role Details: Mini PCIe 52-pin socket; use USB-only pins for simpleRTK3B/Mosaic-X5 - Functional Group: GNSS - Symbol Style: parametric-v1 - Datasheet URL: https://www.te.com/usa-en/product-1759547-1.datasheet.pdf - Part Type: Connector - Manufacturer Part Number: 1759547-1 - Role: Connection **Pins:** - +1.5V_1 [pin 28] - +1.5V_2 [pin 48] - +3.3VAUX_1 [pin 24] - +3.3VAUX_2 [pin 39] - +3.3VAUX_3 [pin 41] - +3.3VAUX_4 [pin 52] - 1.5V [pin 6] - 3.3VAUX [pin 2] - CLKREQ# [pin 7] - COEX1 [pin 3] - COEX2 [pin 5] - GND_1 [pin 4] - GND_10 [pin 35] - GND_11 [pin 37] - GND_12 [pin 40] - GND_13 [pin 43] - GND_14 [pin 50] - GND_2 [pin 9] - GND_3 [pin 15] - GND_4 [pin 18] - GND_5 [pin 21] - GND_6 [pin 26] - GND_7 [pin 27] - GND_8 [pin 29] - GND_9 [pin 34] - LED_WLAN# [pin 44] - LED_WPAN# [pin 46] - LED_WWAN# [pin 42] - MP1 [pin MP1] - MP2 [pin MP2] - PERN0 [pin 23] - PERP0 [pin 25] - PERST# [pin 22] - PETN0 [pin 31] - PETP0 [pin 33] - REFCLK- [pin 11] - REFCLK+ [pin 13] - RESERVED_1 [pin 45] - RESERVED_2 [pin 47] - RESERVED_3 [pin 49] - RESERVED_4 [pin 51] - RESERVED(UIM_C4) [pin 19] - RESERVED(UIM_C8) [pin 17] - SMB_CLK [pin 30] - SMB_DATA [pin 32] - UIM_CLK [pin 12] - UIM_DATA [pin 10] - UIM_PWR [pin 8] - UIM_RESET [pin 14] - UIM_VPP [pin 16] - USB_D- [pin 36] - USB_D+ [pin 38] - W_DISABLE# [pin 20] - WAKE# [pin 1] ### J_SIM — [7111S2015X02LF](https://www.flux.ai/cherepanyadima/7111s2015x02lf~ky.md) - Functional Group: SIM - Manufacturer Part Number: 7111S2015X02LF - Role: Protection - Mount: Surface Mount - Compliance: Lead Free - Datasheet URL: https://www.amphenol-cs.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io_smartcard_ss06ss10series.pdf - Role Details: 6-position SIM/nano-SIM connector with passive numbered contacts; C6 is intentionally unused/no-connect for modern USIM operation, avoiding VPP power-pin ERC false-positive. - Manufacturer Name: Amphenol ICC - Part Type: Connector **Pins:** - C1 [pin 1] - C2 [pin 2] - C3 [pin 3] - C5 [pin 5] - C6 [pin 6] - C7 [pin 7] ### PS_POE — [AG5300](https://www.flux.ai/adrian95/ag5300~ep7.md) - Functional Group: PoE/DC Input - Manufacturer Part Number: AG5300 - Part Type: Power Source - Role Details: Silvertel AG5300 12V isolated PoE+ module; chosen because it exists in Flux. Ag5412 remains preferred external BOM target if added later. - Role: PoE+ Power Module - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.mouser.com/datasheet/2/1048/SIED_S_A0002154526_1-2576161.pdf - Manufacturer Name: Silver Telecom Ltd. **Pins:** - -VDC [pin 7] - -VDC [pin 10] - +VDC [pin 8] - ADJ [pin 9] - AT-DET [pin 3] - IC [pin 6] - IC [pin 5] - IC [pin 4] - VIN- [pin 2] - VIN+ [pin 1] ### Q_CHG_ACFET_IN — [SIR880BDP-T1-RE3](https://www.flux.ai/3xalted0n3/sir880bdp-t1-re3~3j.md) - Role Details: BQ25750 ACFET half of back-to-back input path; drain to sensed CHG_IN, source common ACFET source, gate ACDRV. - Role: Reverse Polarity Protection - Manufacturer Name: Vishay - Manufacturer Part Number: SIR880BDP-T1-RE3 - Datasheet URL: https://www.vishay.com/docs/63031/sir880bdp.pdf - Functional Group: Battery UPS - Package or Case Code: SI7852ADPT1GE3 **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - D_6 [pin 10] - D_7 [pin 11] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_CHG_ACFET_SYS — [SIR880BDP-T1-RE3](https://www.flux.ai/3xalted0n3/sir880bdp-t1-re3~3j.md) - Manufacturer Part Number: SIR880BDP-T1-RE3 - Manufacturer Name: Vishay - Role Details: BQ25750 ACFET half of back-to-back input path; drain to SYS_BUS, source common ACFET source, gate ACDRV. - Functional Group: Battery UPS - Package or Case Code: SI7852ADPT1GE3 - Datasheet URL: https://www.vishay.com/docs/63031/sir880bdp.pdf - Role: Reverse Polarity Protection **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - D_6 [pin 10] - D_7 [pin 11] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_CHG_BATFET_BAT — [SIR880BDP-T1-RE3](https://www.flux.ai/3xalted0n3/sir880bdp-t1-re3~3j.md) - Role: Power Conversion - Role Details: BQ25750 BATFET half of battery-to-SYS direct power path; drain to BAT_2S, source common BATSRC, gate BATDRV. - Datasheet URL: https://www.vishay.com/docs/63031/sir880bdp.pdf - Package or Case Code: SI7852ADPT1GE3 - Manufacturer Part Number: SIR880BDP-T1-RE3 - Functional Group: Battery UPS - Manufacturer Name: Vishay **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - D_6 [pin 10] - D_7 [pin 11] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_CHG_BATFET_SYS — [SI7489DP-T1-E3](https://www.flux.ai/lcsc/si7489dp-t1-e3~r4fe.md) - Part Type: MOSFETs - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SI7489DP-T1-E3 - Manufacturer Name: VISHAY(威世) - Role: BQ25750 system-side BATFET; distinct-symbol workaround for Flux net merge issue - Product Info Url: https://lcsc.com/product-detail/MOSFET_VISHAY_SI7489DP-T1-E3_SI7489DP-T1-E3_C141576.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1804250211_Vishay-Intertech-SI7489DP-T1-E3_C141576.pdf - Package or Case Code: POWERPAK-SO-8_L6.1-W5.1-P1.27-BL-EP - LCSC Part Number: C141576 **Pins:** - D [pin 6] - D [pin 5] - D [pin 8] - D [pin 7] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_CHG_BOOST_HS — [AON6276](https://www.flux.ai/adrian95/aon6276~2ev.md) - Functional Group: Battery UPS - Role: Switching - Datasheet URL: https://octopart.com/datasheet/aon6276-alpha+%26+omega+semiconductor-85306924 - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AON6276 - Role Details: BQ25750 boost-side high-side FET; drain converter battery node, source SW2, gate HIDRV2; TI ref uses AON6276 class 80V low-Rds FET. - Manufacturer Name: Alpha & Omega Semiconductor Inc. **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_CHG_BOOST_LS — [AON6276](https://www.flux.ai/adrian95/aon6276~2ev.md) - Manufacturer Name: Alpha & Omega Semiconductor Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor - Functional Group: Battery UPS - Manufacturer Part Number: AON6276 - Role: Switching - Datasheet URL: https://octopart.com/datasheet/aon6276-alpha+%26+omega+semiconductor-85306924 - Role Details: BQ25750 boost-side low-side FET; drain SW2, source PGND, gate LODRV2; TI ref uses AON6276 class 80V low-Rds FET. **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_CHG_BUCK_HS — [AON6276](https://www.flux.ai/adrian95/aon6276~2ev.md) - Role: Switching - Manufacturer Name: Alpha & Omega Semiconductor Inc. - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AON6276 - Datasheet URL: https://octopart.com/datasheet/aon6276-alpha+%26+omega+semiconductor-85306924 - Role Details: BQ25750 buck-side high-side FET; drain SYS_BUS, source SW1, gate HIDRV1; TI ref uses AON6276 class 80V low-Rds FET. - Functional Group: Battery UPS **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_CHG_BUCK_LS — [AON6276](https://www.flux.ai/adrian95/aon6276~2ev.md) - Role: Switching - Datasheet URL: https://octopart.com/datasheet/aon6276-alpha+%26+omega+semiconductor-85306924 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor - Manufacturer Part Number: AON6276 - Role Details: BQ25750 buck-side low-side FET; drain SW1, source PGND, gate LODRV1; TI ref uses AON6276 class 80V low-Rds FET. - Functional Group: Battery UPS - Manufacturer Name: Alpha & Omega Semiconductor Inc. **Pins:** - D_1 [pin 5] - D_2 [pin 6] - D_3 [pin 7] - D_4 [pin 8] - D_5 [pin 9] - G [pin 4] - S_1 [pin 1] - S_2 [pin 2] - S_3 [pin 3] ### Q_DC_OR — [SI7489DP-T1-E3](https://www.flux.ai/lcsc/si7489dp-t1-e3~r4fe.md) - Role: Power Path MOSFET - Functional Group: PoE/DC Input - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SI7489DP-T1-E3 - Part Type: MOSFETs - Manufacturer Name: VISHAY(威世) - Product Info Url: https://lcsc.com/product-detail/MOSFET_VISHAY_SI7489DP-T1-E3_SI7489DP-T1-E3_C141576.html - LCSC Part Number: C141576 - Package or Case Code: POWERPAK-SO-8_L6.1-W5.1-P1.27-BL-EP - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1804250211_Vishay-Intertech-SI7489DP-T1-E3_C141576.pdf - Role Details: External MOSFET driven by U_DC_OR for low-loss reverse-current blocking. Final FET rating/thermal review required. **Pins:** - D [pin 6] - D [pin 5] - D [pin 8] - D [pin 7] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_POE_OR — [SI7489DP-T1-E3](https://www.flux.ai/lcsc/si7489dp-t1-e3~r4fe.md) - Product Info Url: https://lcsc.com/product-detail/MOSFET_VISHAY_SI7489DP-T1-E3_SI7489DP-T1-E3_C141576.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1804250211_Vishay-Intertech-SI7489DP-T1-E3_C141576.pdf - Package or Case Code: POWERPAK-SO-8_L6.1-W5.1-P1.27-BL-EP - LCSC Part Number: C141576 - Functional Group: PoE/DC Input - Role Details: External MOSFET driven by U_POE_OR for low-loss reverse-current blocking. Final FET rating/thermal review required. - Manufacturer Name: VISHAY(威世) - Role: Power Path MOSFET - Part Type: MOSFETs - Manufacturer Part Number: SI7489DP-T1-E3 - JLCPCB Part Class: Extended Part **Pins:** - D [pin 6] - D [pin 5] - D [pin 8] - D [pin 7] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### U_5V_BUCK — [LMR51450SDRRR](https://www.flux.ai/adrian95/lmr51450sdrrr~tvd.md) - Part Type: Power Management - Datasheet URL: https://www.ti.com/lit/ds/symlink/lmr51440.pdf - Package or Case Code: SON50P300X300X80-13N-D - Role: Power Conversion - Manufacturer Part Number: LMR51450SDRRR - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Functional Group: Power Rails - Role Details: 12V/SYS_BUS to 5V_CM 5A buck; fixes missing CM4 5V rail source. Final thermal/layout verification required. **Pins:** - AGND [pin 8] - BOOT [pin 4] - EN [pin 9] - FB [pin 7] - PG [pin 5] - PGND [pin 13] - RT [pin 6] - SW_1 [pin 1] - SW_2 [pin 2] - SW_3 [pin 3] - VIN_1 [pin 10] - VIN_2 [pin 11] - VIN_3 [pin 12] ### U_AUX_LDO — [AP2112K-3.3TRG1](https://www.flux.ai/adrian95/ap2112k-33trg1~zlq.md) - Role Details: 5V_CM to 3V3_AUX 600mA LDO; low-current aux/pullup rail, not for high-current loads. - Part Type: Integrated Circuit - Symbol Style: parametric-v1 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP2112.pdf - Role: Power Conversion - Manufacturer Part Number: AP2112K-3.3TRG1 - Functional Group: Power Rails - Manufacturer Name: Diodes Incorporated **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] ### U_CHG — [BQ25750RRVR](https://www.flux.ai/adrian95/bq25750rrvr~e4n.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Role Details: BQ25750RRVR 2S Li-ion charger/power-path controller; final support circuitry must follow TI reference design - Manufacturer Name: Texas Instruments - Package: RRV VQFN-36, 5 mm x 6 mm, 0.5 mm pitch, exposed thermal pad - Manufacturer Part Number: BQ25750RRVR - Role: Power Conversion - Datasheet URL: https://www.ti.com/lit/ds/symlink/bq25750.pdf - Symbol Style: parametric-v1 - Functional Group: Battery UPS - Package or Case Code: QFN50P500X600X100-37N-D **Pins:** - ~CE [pin 7] - ~INT [pin 3] - ~PG [pin 6] - ACDRV [pin 31] - ACN [pin 29] - ACOV [pin 35] - ACP [pin 30] - ACUV [pin 34] - BATDRV [pin 15] - BATSRC [pin 16] - BTST1 [pin 26] - BTST2 [pin 20] - DRV_SUP [pin 23] - FB [pin 12] - FBG [pin 11] - FSW_SYNC [pin 36] - HIDRV1 [pin 27] - HIDRV2 [pin 19] - ICHG [pin 9] - ILIM_HIZ [pin 10] - LODRV1 [pin 25] - LODRV2 [pin 21] - PGND_1 [pin 17] - PGND_2 [pin 22] - REGN [pin 24] - SCL [pin 1] - SDA [pin 2] - SRN [pin 13] - SRP [pin 14] - STAT1 [pin 4] - STAT2 [pin 5] - SW1 [pin 28] - SW2 [pin 18] - SYS [pin 32] - THERMAL_PAD [pin 37] - TS [pin 8] - VAC [pin 33] ### U_CM4 — [Raspberry Pi Compute Module 4](https://www.flux.ai/jharwinbarrozo/raspberry-pi-compute-module-4~na.md) - Functional Group: Compute - Role: Logic - Manufacturer Name: Raspberry Pi - Manufacturer Part Number: Raspberry Pi Compute Module 4 - Part Type: Integrated Circuit - Role Details: CM4 host processor module; CM5 compatibility tracked separately **Pins:** - +5V(INPUT) [pin 77] - +5V(INPUT)__1 [pin 79] - +5V(INPUT)__2 [pin 81] - +5V(INPUT)__3 [pin 83] - +5V(INPUT)__4 [pin 85] - +5V(INPUT)__5 [pin 87] - ~EXTRST [pin 100] - ~RPIBOOT [pin 93] - ANALOGIP0 [pin 96] - ANALOGIP1 [pin 94] - BT_~DISABLE [pin 91] - CAM0_C_N [pin 140] - CAM0_C_P [pin 142] - CAM0_D0_N [pin 128] - CAM0_D0_P [pin 130] - CAM0_D1_N [pin 134] - CAM0_D1_P [pin 136] - CAM1_C_N [pin 127] - CAM1_C_P [pin 129] - CAM1_D0_N [pin 115] - CAM1_D0_P [pin 117] - CAM1_D1_N [pin 121] - CAM1_D1_P [pin 123] - CAM1_D2_N [pin 133] - CAM1_D2_P [pin 135] - CAM1_D3_N [pin 139] - CAM1_D3_P [pin 141] - CAMERA_GPIO [pin 97] - CM4_1.8V(OUTPUT) [pin 88] - CM4_1.8V(OUTPUT)__1 [pin 90] - CM4_3.3V(OUTPUT) [pin 84] - CM4_3.3V(OUTPUT)__1 [pin 86] - DSI0_C_N [pin 169] - DSI0_C_P [pin 171] - DSI0_D0_N [pin 157] - DSI0_D0_P [pin 159] - DSI0_D1_N [pin 163] - DSI0_D1_P [pin 165] - DSI1_C_N [pin 187] - DSI1_C_P [pin 189] - DSI1_D0_N [pin 175] - DSI1_D0_P [pin 177] - DSI1_D1_N [pin 181] - DSI1_D1_P [pin 183] - DSI1_D2_N [pin 193] - DSI1_D2_P [pin 195] - DSI1_D3_N [pin 194] - DSI1_D3_P [pin 196] - EEPROM_~WP [pin 20] - ETHERNET_~LED1 [pin 19] - ETHERNET_~LED2 [pin 17] - ETHERNET_~LED3 [pin 15] - ETHERNET_PAIR0_N [pin 10] - ETHERNET_PAIR0_P [pin 12] - ETHERNET_PAIR1_N [pin 6] - ETHERNET_PAIR1_P [pin 4] - ETHERNET_PAIR2_N [pin 9] - ETHERNET_PAIR2_P [pin 11] - ETHERNET_PAIR3_N [pin 5] - ETHERNET_PAIR3_P [pin 3] - ETHERNET_SYNC_IN [pin 16] - ETHERNET_SYNC_OUT [pin 18] - GLOBAL_EN [pin 99] - GND [pin 1] - GND__1 [pin 2] - GND__10 [pin 42] - GND__11 [pin 43] - GND__12 [pin 52] - GND__13 [pin 53] - GND__14 [pin 59] - GND__15 [pin 60] - GND__16 [pin 65] - GND__17 [pin 66] - GND__18 [pin 71] - GND__19 [pin 74] - GND__2 [pin 7] - GND__20 [pin 98] - GND__21 [pin 107] - GND__22 [pin 108] - GND__23 [pin 113] - GND__24 [pin 114] - GND__25 [pin 119] - GND__26 [pin 120] - GND__27 [pin 125] - GND__28 [pin 126] - GND__29 [pin 131] - GND__3 [pin 8] - GND__30 [pin 132] - GND__31 [pin 137] - GND__32 [pin 138] - GND__33 [pin 144] - GND__34 [pin 150] - GND__35 [pin 155] - GND__36 [pin 156] - GND__37 [pin 161] - GND__38 [pin 162] - GND__39 [pin 167] - GND__4 [pin 13] - GND__40 [pin 168] - GND__41 [pin 173] - GND__42 [pin 174] - GND__43 [pin 179] - GND__44 [pin 180] - GND__45 [pin 185] - GND__46 [pin 186] - GND__47 [pin 191] - GND__48 [pin 192] - GND__49 [pin 197] - GND__5 [pin 14] - GND__50 [pin 198] - GND__6 [pin 22] - GND__7 [pin 23] - GND__8 [pin 32] - GND__9 [pin 33] - GPIO_VREF [pin 78] - GPIO10 [pin 44] - GPIO11 [pin 38] - GPIO12 [pin 31] - GPIO13 [pin 28] - GPIO14 [pin 55] - GPIO15 [pin 51] - GPIO16 [pin 29] - GPIO17 [pin 50] - GPIO18 [pin 49] - GPIO19 [pin 26] - GPIO2 [pin 58] - GPIO20 [pin 27] - GPIO21 [pin 25] - GPIO22 [pin 46] - GPIO23 [pin 47] - GPIO24 [pin 45] - GPIO25 [pin 41] - GPIO26 [pin 24] - GPIO27 [pin 48] - GPIO3 [pin 56] - GPIO4 [pin 54] - GPIO5 [pin 34] - GPIO6 [pin 30] - GPIO7 [pin 37] - GPIO8 [pin 39] - GPIO9 [pin 40] - HDMI0_CEC [pin 151] - HDMI0_CLK_N [pin 190] - HDMI0_CLK_P [pin 188] - HDMI0_HOTPLUG [pin 153] - HDMI0_SCL [pin 200] - HDMI0_SDA [pin 199] - HDMI0_TX0_N [pin 184] - HDMI0_TX0_P [pin 182] - HDMI0_TX1_N [pin 178] - HDMI0_TX1_P [pin 176] - HDMI0_TX2_N [pin 172] - HDMI0_TX2_P [pin 170] - HDMI1_CEC [pin 149] - HDMI1_CLK_N [pin 166] - HDMI1_CLK_P [pin 164] - HDMI1_HOTPLUG [pin 143] - HDMI1_SCL [pin 147] - HDMI1_SDA [pin 145] - HDMI1_TX0_N [pin 160] - HDMI1_TX0_P [pin 158] - HDMI1_TX1_N [pin 154] - HDMI1_TX1_P [pin 152] - HDMI1_TX2_N [pin 148] - HDMI1_TX2_P [pin 146] - ID_SC [pin 35] - ID_SD [pin 36] - PCIE_~RST [pin 109] - PCIE_CLK_~REQ [pin 102] - PCIE_CLK_N [pin 112] - PCIE_CLK_P [pin 110] - PCIE_RX_N [pin 118] - PCIE_RX_P [pin 116] - PCIE_TX_N [pin 124] - PCIE_TX_P [pin 122] - PI_~LED~_ACTIVITY [pin 21] - PI_LED_~PWR [pin 95] - RESERVED [pin 76] - RESERVED__1 [pin 104] - RESERVED__2 [pin 106] - RUN_PG [pin 92] - SCL0 [pin 80] - SD_CLK [pin 57] - SD_CMD [pin 62] - SD_DAT0 [pin 63] - SD_DAT1 [pin 67] - SD_DAT2 [pin 69] - SD_DAT3 [pin 61] - SD_DAT4 [pin 68] - SD_DAT5 [pin 64] - SD_DAT6 [pin 72] - SD_DAT7 [pin 70] - SD_PWR_ON [pin 75] - SD_VDD_OVERRIDE [pin 73] - SDA0 [pin 82] - USB_N [pin 103] - USB_OTG_ID [pin 101] - USB_P [pin 105] - VDAC_COMP [pin 111] - WL_~DISABLE [pin 89] ### U_DC_OR — [LM74700QDDFRQ1](https://www.flux.ai/adrian95/lm74700qddfrq1~2rv.md) - Part Type: Integrated Circuit - Role: Ideal Diode Controller - Manufacturer Part Number: LM74700QDDFRQ1 - Symbol Style: parametric-v1 - Functional Group: PoE/DC Input - Role Details: External DC source reverse-current blocking into VIN_ORING_12V; ANODE=DC_IN_PROT, CATHODE=VIN_ORING_12V. - Manufacturer Name: Texas Instruments - Package or Case Code: SOT65P280X110-8N - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm74700-q1.pdf?ts=1609880384188&ref_url=https%253A%252F%252Fwww.ti.com%252Fstore%252Fti%252Fen%252Fp%252Fproduct%252F%253Fp%253DLM74700QDBVRQ1%2526HQS%253DOCB-tistore-invf-storeinv-invf-store-findchips-wwe **Pins:** - ANODE [pin 5] - CATHODE [pin 8] - EN [pin 1] - GATE [pin 6] - GND [pin 2] - N.C_1 [pin 3] - N.C_2 [pin 7] - VCAP [pin 4] ### U_GNSS_BUCK — [LMR33630BDDAR](https://www.flux.ai/lcsc/lmr33630bddar~o51d.md) - LCSC Part Number: C544370 - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: LMR33630BDDAR - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP2.8-1 - Role: Power Conversion - JLCPCB Part Class: Extended Part - Role Details: SYS_BUS to 3V3_GNSS clean buck source; controlled by MOSAIC_PWR_EN. - Functional Group: Power Rails - Part Type: DC-DC Converters - Datasheet URL: https://www.ti.com/lit/ds/symlink/lmr33630.pdf **Pins:** - BOOT [pin 7] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 4] - PGND [pin 1] - SW [pin 8] - VCC [pin 6] - VIN [pin 2] ### U_HUB_BUCK — [LMR33630BDDAR](https://www.flux.ai/lcsc/lmr33630bddar~o51d.md) - Part Type: DC-DC Converters - Role: Power Conversion - Datasheet URL: https://www.ti.com/lit/ds/symlink/lmr33630.pdf - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP2.8-1 - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: LMR33630BDDAR - Functional Group: Power Rails - JLCPCB Part Class: Extended Part - LCSC Part Number: C544370 - Role Details: SYS_BUS to 3V3_HUB dedicated buck source; separates hub rail from LTE/GNSS/aux rails. **Pins:** - BOOT [pin 7] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 4] - PGND [pin 1] - SW [pin 8] - VCC [pin 6] - VIN [pin 2] ### U_LTE_BUCK — [LMR33630BDDAR](https://www.flux.ai/lcsc/lmr33630bddar~o51d.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/lmr33630.pdf - Role Details: 12V/SYS_BUS to 3V3_LTE dedicated 3A rail. Uses TI typical 3.3V values; final thermal/layout review required. - Part Type: DC-DC Converters - Functional Group: LTE Power - JLCPCB Part Class: Extended Part - Role: LTE Buck Regulator - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP2.8-1 - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: LMR33630BDDAR - LCSC Part Number: C544370 **Pins:** - BOOT [pin 7] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 4] - PGND [pin 1] - SW [pin 8] - VCC [pin 6] - VIN [pin 2] ### U_POE_OR — [LM74700QDDFRQ1](https://www.flux.ai/adrian95/lm74700qddfrq1~2rv.md) - Manufacturer Name: Texas Instruments - Symbol Style: parametric-v1 - Role Details: PoE source reverse-current blocking into VIN_ORING_12V; ANODE=POE_12V_PROT, CATHODE=VIN_ORING_12V. - Manufacturer Part Number: LM74700QDDFRQ1 - Role: Ideal Diode Controller - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm74700-q1.pdf?ts=1609880384188&ref_url=https%253A%252F%252Fwww.ti.com%252Fstore%252Fti%252Fen%252Fp%252Fproduct%252F%253Fp%253DLM74700QDBVRQ1%2526HQS%253DOCB-tistore-invf-storeinv-invf-store-findchips-wwe - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: PoE/DC Input - Package or Case Code: SOT65P280X110-8N **Pins:** - ANODE [pin 5] - CATHODE [pin 8] - EN [pin 1] - GATE [pin 6] - GND [pin 2] - N.C_1 [pin 3] - N.C_2 [pin 7] - VCAP [pin 4] ### U_USBHUB — [USB2514B-I/M2](https://www.flux.ai/vasyl/usb2514b-im2~5d4.md) - Part Type: Integrated Circuit - Manufacturer Name: Microchip Technology - Role Details: USB2514B-I/M2 4-port USB 2.0 hub controller - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/00001692C.pdf - Manufacturer Part Number: USB2514B-I/M2 - Role: Logic - Functional Group: USB Hub **Pins:** - CRFILT [pin 14] - HS_IND/CFG_SEL1 [pin 25] - OCS_N1 [pin 13] - OCS_N2 [pin 17] - OCS_N3 [pin 19] - OCS_N4 [pin 21] - PLLFILT [pin 34] - PRTPWR1/BC_EN1 [pin 12] - PRTPWR2/BC_EN2 [pin 16] - PRTPWR3/BC_EN3 [pin 18] - PRTPWR4/BC_EN4 [pin 20] - RBIAS [pin 35] - RESET_N [pin 26] - SCL/SMBCLK/CFG_SEL0 [pin 24] - SDA/SMBDATA/NON_REM1 [pin 22] - SUSP_IND/LOCAL_PWR/NON_REM0 [pin 28] - TEST [pin 11] - USBDM_DN1/PRT_DIS_M1 [pin 1] - USBDM_DN2/PRT_DIS_M2 [pin 3] - USBDM_DN3/PRT_DIS_M3 [pin 6] - USBDM_DN4/PRT_DIS_M4 [pin 8] - USBDM_UP [pin 30] - USBDP_DN1/PRT_DIS_P1 [pin 2] - USBDP_DN2/PRT_DIS_P2 [pin 4] - USBDP_DN3/PRT_DIS_P3 [pin 7] - USBDP_DN4/PRT_DIS_P4 [pin 9] - USBDP_UP [pin 31] - VBUS_DET [pin 27] - VDD33 [pin 23] - VDD33 [pin 15] - VDDA33 [pin 5] - VDDA33 [pin 36] - VDDA33 [pin 10] - VDDA33 [pin 29] - VSS [pin 37] - XTALIN/CLKIN [pin 33] - XTALOUT [pin 32] ### Y_HUB_24M — [ABM8G-24.000MHZ-18-D2Y-T](https://www.flux.ai/adrian95/abm8g-24p000mhz-18-d2y-t.md) - Functional Group: USB Hub - Package or Case Code: SMD - Implementation Details: Fundamental mode, ±30ppm stability, 10uW typ / 100uW max drive, 3.2x2.5x1.0mm ABM8G 4-SMD package - Tolerance: 20ppm - Manufacturer Part Number: ABM8G-24.000MHZ-18-D2Y-T - Role Details: 24.000 MHz ±20ppm, 18pF load crystal for USB2514B XTALIN/XTALOUT per Microchip oscillator requirement. - Symbol Style: parametric-v1 - Role: Signal Generation - Mount: Surface Mount - Operating Temperature: -40 to 85°C - Resistance: 60ohms - Capacitance: 18pF - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Abracon LLC - Part Type: Crystals and Oscillators - Frequency: 24MHz - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/0c496f4a39367786dc352f3582c31ce4b6a9d5a5168ee71ac3e8bab47549838e.pdf **Pins:** - GND_1 [pin 2] - GND_2 [pin 4] - XTAL_1 [pin 1] - XTAL_2 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jakenorthern1/rtk-cm4-carrrier-fix~h9](https://www.flux.ai/jakenorthern1/rtk-cm4-carrrier-fix~h9).* --- *Generated from [https://www.flux.ai/jakenorthern1/rtk-cm4-carrrier-fix~h9](https://www.flux.ai/jakenorthern1/rtk-cm4-carrrier-fix~h9)*