84 lines
9.4 KiB
TeX
84 lines
9.4 KiB
TeX
% AUTO-GENERATED 2026-07-07 by tools/sync_bom.py from helgen_einarboard_1.0_production_bom.xlsx.
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% DO NOT HAND-EDIT — edit the workbook and re-run.
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\begin{small}
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\setlength{\LTleft}{0pt}\setlength{\LTright}{0pt}
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\begin{longtable}{@{}r p{2.6cm} p{5.4cm} p{1.5cm} p{2.6cm} p{1.7cm} p{1.4cm} r r@{}}
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\caption{Internal PCBA BOM --- per board (synchronized from the production workbook).}
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\label{tab:pcba-bom}\\
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\toprule
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\rowcolor{HelgenIndigo}
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\textcolor{white}{\textbf{Qty}} & \textcolor{white}{\textbf{RefDes}} & \textcolor{white}{\textbf{Description}} & \textcolor{white}{\textbf{Pkg}} & \textcolor{white}{\textbf{Part}} & \textcolor{white}{\textbf{LCSC}} & \textcolor{white}{\textbf{Assy}} & \textcolor{white}{\textbf{Unit\,\$}} & \textcolor{white}{\textbf{Line\,\$}} \\
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\midrule\endfirsthead
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\toprule
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\rowcolor{HelgenIndigo}
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\textcolor{white}{\textbf{Qty}} & \textcolor{white}{\textbf{RefDes}} & \textcolor{white}{\textbf{Description}} & \textcolor{white}{\textbf{Pkg}} & \textcolor{white}{\textbf{Part}} & \textcolor{white}{\textbf{LCSC}} & \textcolor{white}{\textbf{Assy}} & \textcolor{white}{\textbf{Unit\,\$}} & \textcolor{white}{\textbf{Line\,\$}} \\
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\midrule\endhead
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\midrule\multicolumn{9}{r}{\emph{continues}}\\\endfoot
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\endlastfoot
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1 & U6 & Battery-backup manager: 1S Li-ion charger + power-path + 2.5 A boost (Rev 1.1 values: RPROG 825R -> 2.42 A \textasciitilde{} C/5, RS 8 mR -> 3.1 A, F-straps 4.00 V Li-ion) & QFN-24 4x5 & Analog Devices LTC4040EUFD\#TRPBF & C687163 & SMD (JLC) & 6.800 & 6.800 \\
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2 & U2, U7 & Buck 1.5 MHz 3 A — U2: 24 V -> 5V\_FAN; U7: SW\_5V -> 3V3\_MODEM (stack cycle reboots modem) & SOIC-8-EP & MPS MP1584EN-LF-Z & C15051 & SMD (JLC) & 0.550 & 1.100 \\
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1 & U3 & Relative humidity / temperature sensor, I2C 0x44 & DFN-4 1.5x1.5 & Sensirion SHT40-AD1B-R3 & C2848306 & SMD (JLC) & 2.600 & 2.600 \\
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1 & U4 & Temperature sensor +/-0.5 degC, I2C 0x48 (ADD0=GND) & SOT-563 & Texas Instruments TMP102AIDRLR & C99269 & SMD (JLC) & 1.100 & 1.100 \\
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1 & Q7 & N-FET 30 V <=13.6 mR — LTC4040 VIN->VSYS disconnect. Rev 1.1 (H1): S=VIN\_SW, D=MAIN5V (gate=IGATE) & SOIC-8 & AOS AO4406AL & C35349 & SMD (JLC) & 0.280 & 0.280 \\
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1 & Q10 & P-FET -55 V, 24 V reverse-polarity front end (with DzG 15 V gate zener) & TO-252 & Infineon IRFR5305TRPBF & C2624 & SMD (JLC) & 0.650 & 0.650 \\
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1 & Q1 & P-FET -30 V, RTK-stack high-side load switch (SW\_IN -> SW\_5V) & SOT-23 & AOS AO3401A & C15127 & SMD (JLC) & 0.050 & 0.050 \\
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2 & Q2, Q4 & N-FET — fan low-side PWM / status-LED driver & SOT-23 & AOS AO3400A & C20917 & SMD (JLC) & 0.040 & 0.080 \\
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2 & Q5, Q6 & NPN drivers — load-switch / K1 coil. Rev 1.1 (H2): Q\_NPN\_BEC pin map (1=B,2=E,3=C) & SOT-23 & onsemi MMBT3904 & C20526 & SMD (JLC) & 0.020 & 0.040 \\
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1 & K1 & Signal relay SPDT 5 V coil — Modo-B fail-safe bypass, NC = F9P TX2 -> 4G DIN (corrections survive dead MCU) & THT DIP & Omron G5V-1 DC5 & verify at LCSC & THT (hand) & 1.900 & 1.900 \\
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1 & L6 & Power inductor 2.2 uH, Isat 14 A (LTC4040 SW<->BAT) & 8.8x8.2 molded & Sunlord MWSA0804S-2R2MT & C17700165 & SMD (JLC) & 0.350 & 0.350 \\
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2 & L2, L7 & Power inductor 10 uH, Isat 6.5 A (fan buck / modem buck) & 8.8x8.2 molded & Sunlord MWSA0804S-100MT & C17700171 & SMD (JLC) & 0.320 & 0.640 \\
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1 & RS1 & Current-sense resistor 8 mR 1\% 1 W (LTC4040 input limit 3.1 A) & 1206 & FOJAN FRM121WFR008TM & C7420012 & SMD (JLC) & 0.150 & 0.150 \\
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1 & F1 & PPTC resettable fuse 3 A 24 V (SYS5V -> SW\_IN) & 1812 & LUTE 1812L300/24GR & C20627123 & SMD (JLC) & 0.250 & 0.250 \\
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1 & D10 & TVS 33 V 600 W, 24 V input clamp & SMB & Littelfuse SMBJ33A & C224019 & SMD (JLC) & 0.120 & 0.120 \\
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1 & DzG & Zener 15 V (Q10 gate protection) & SOT-23 & onsemi BZX84C15LT1G & C80857 & SMD (JLC) & 0.030 & 0.030 \\
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1 & D5 & Schottky BAT54 — PA5 ignition clamp to 3V3 & SOD-123 & BAT54 & auto-match & SMD (JLC) & 0.020 & 0.020 \\
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1 & D6 & 1N4148W — K1 coil flyback & SOD-123 & 1N4148W & C2099 & SMD (JLC) & 0.010 & 0.010 \\
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3 & D2, Dbk, Dbk2 & Schottky 40 V 3 A — fan flyback / buck freewheel x2 & SMA & SS34 & C8678 & SMD (JLC) & 0.060 & 0.180 \\
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6 & D1, D4G, DB1-DB4 & LED green 0805 — status, modem, 4-LED battery gauge & 0805 & — & C28105 & SMD (JLC) & 0.010 & 0.060 \\
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1 & R50 & 825R — LTC4040 PROG: I\_CHG = 2000/RPROG = 2.42 A \textasciitilde{} C/5 (12 Ah pack) & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.010 \\
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1 & R51 & 287k — PFI divider top (VEH5V trip 4.60 V falling) & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.010 \\
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1 & R53 & 499k — BSTFB/RSTFB divider top (backup 4.79 V; RST -7.5\%) & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.010 \\
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1 & R21 & 19.1k — U2 FB bottom (5V\_FAN = 5.0 V) & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.010 \\
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1 & R61 & 31.6k — U7 FB bottom (3V3\_MODEM = 3.33 V) & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.010 \\
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3 & R52, R54, R60 & 100k 1\% — PFI / FB dividers & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.030 \\
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2 & R42, R55 & 10k 1\% — NTC dividers (PB1 hotspot / LTC4040 NTC bias) & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.020 \\
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2 & RIG1, RDFU1 & 22k — ignition divider top (raw 12-24 V) / DFU pull. Rev 1.1 (H3): corrected from stale 100R & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.008 \\
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10 & R2, R5, R6, R7, R8, R41, Rigb, Rled, Rrp, Rtp & 10k — pulls, sense divider halves, Rigb ignition divider bottom & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.040 \\
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8 & R20, R56, R57, R58, Ren1, Rfreq, Rfreq2, Rgs & 100k — FB tops, pulls, FREQ set, EN UVLO top & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.032 \\
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5 & R1, R3, R40, Rts, Rmled & 1k — base drives, LED limits, tach series & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.020 \\
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4 & RB1-RB4 & 330R — battery-gauge LED limits (PB12-PB15) & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.016 \\
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2 & R30, R31 & 4.7k — I2C1 pull-ups (SCL/SDA) & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.008 \\
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2 & Rcomp, Rcomp2 & 40.2k — MP1584 COMP loop & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.008 \\
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2 & Rcc1, Rcc2 & 5.1k — USB-C CC1/CC2 device-mode pulldowns & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.008 \\
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1 & Rg & 100R — Q2 gate series & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.004 \\
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1 & Ren2 & 20k — MP1584 EN UVLO bottom (EN abs-max 6 V — never tie EN to 24 V) & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.004 \\
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7 & C5, C7, C9, C11, C24, Cu3, Cu4 & 100 nF X7R — decoupling, PA5/PB1 filters & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.028 \\
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2 & Cbst, Cbst2 & 10 nF — MP1584 BST bootstrap (U2/U7) & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.008 \\
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2 & Ccomp, Ccomp2 & 2.2 nF — MP1584 COMP & 0603 & — & Basic auto & SMD (JLC) & 0.004 & 0.008 \\
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1 & C31 & 2.2 uF — U6 VIN aux & 0603 & — & Basic auto & SMD (JLC) & 0.010 & 0.010 \\
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2 & C30, C34 & 10 uF X5R — U6 VIN / VSYS & 0805 & — & Basic auto & SMD (JLC) & 0.010 & 0.020 \\
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3 & C35, C40, C41 & 22 uF >=16 V — U6 BAT / U7 in / U7 out & 0805 & — & Basic auto & SMD (JLC) & 0.020 & 0.060 \\
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1 & C23 & 22 uF 16 V — U2 buck out & 0805 & — & Basic auto & SMD (JLC) & 0.020 & 0.020 \\
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1 & C22 & 22 uF 50 V — U2 buck in (24 V node) & 1210 & — & Basic auto & SMD (JLC) & 0.060 & 0.060 \\
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2 & C32, C33 & 47 uF >=25 V low-ESR ceramic — VSYS hold-up (with C34: 104 uF >= datasheet 100 uF min) & 1210 & — & Basic auto & SMD (JLC) & 0.080 & 0.160 \\
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1 & C3 & 47 uF radial electrolytic — SW\_5V bulk & radial 5x7 & — & auto/hand & THT (hand) & 0.030 & 0.030 \\
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1 & C10 & 47 uF 50 V radial — 24 V bulk & radial 6.3x7.7 & — & auto/hand & THT (hand) & 0.040 & 0.040 \\
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1 & C43 & 100 uF 6.3 V radial — 3V3\_MODEM bulk (LTE TX bursts) & radial 6.3x7.7 & — & auto/hand & THT (hand) & 0.040 & 0.040 \\
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1 & J9 & USB-C receptacle USB 2.0 (modem service console: VBUS->J7.6 enables modem USB; no rail backfeed) & SMD 14P & GCT USB4085-GF-A & search USB4085 & THT/SMD (hand rec.) & 0.450 & 0.450 \\
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1 & SW4G & Tactile switch SMD — modem RESET (J7.5 -> GND) & 6x3.5 gull-wing & C\&K PTS636SK25SMTRLFS & C2689642 & SMD (JLC) & 0.150 & 0.150 \\
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1 & SW1 & Tactile 6 mm THT — MCU RESET (NRST -> GND) & THT 6 mm & — & hand & THT (hand) & 0.050 & 0.050 \\
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1 & P1 & Terminal block 5-pos 5.08 mm — GX16 machine power in (24V\_IN / GND / IGN\_IN) & THT & Phoenix MKDS 1,5/5-5,08 & hand & THT (hand) & 1.200 & 1.200 \\
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5 & P2, P8, P10, P11, P12 & JST-XH 2-pin top-entry — 5V-IN, panel LED, ext reset, cutoff switch, hotspot NTC & THT B2B-XH & JST B2B-XH-A & hand & THT (hand) & 0.080 & 0.400 \\
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1 & P4 & JST-XH 3-pin — battery 1S4P: BAT+ / GND / NTC & THT B3B-XH & JST B3B-XH-A & hand & THT (hand) & 0.090 & 0.090 \\
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2 & P5, P6 & JST-XH 4-pin — I2C probe port / fan (5V\_FAN, RET, GND, TACH) & THT B4B-XH & JST B4B-XH-A & hand & THT (hand) & 0.100 & 0.200 \\
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2 & J1, J2 & Female header 1x20 2.54 mm — Blackpill socket & THT & — & hand & THT (hand) & 0.350 & 0.700 \\
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2 & J7, J8 & Female socket 1x10 2.00 mm — XBee 4G socket (rows 22.35 mm) & THT & — & hand & THT (hand) & 0.600 & 1.200 \\
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1 & MOD1 & Arduino-UNO female header kit 10+8+8+6 — simpleRTK2B Pro shield socket & THT 2.54 & — & hand & THT (hand) & 0.900 & 0.900 \\
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0 & P3, P13, H3 & DNP — harness alternatives made redundant by carrier sockets + K1 NC bypass (P3 UART1 tap, P13 Modo-B uplink, H3 USART1 header) & THT & — & — & DNP & 0.000 & 0.000 \\
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0 & JP1 & 0R rail-select option — OPEN by default (dedicated fan buck); close ONLY if SD-15B-05 upsized & 0603 & — & C21189 & DNP & 0.000 & 0.000 \\
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\midrule
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\multicolumn{8}{r}{\textbf{TOTAL --- PCBA parts per board}} & \textbf{22.48} \\
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\bottomrule
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\end{longtable}
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\end{small}
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