Schematic Update Instructions

flux

0:00

Work done
  • None of the planned tasks were completed.
Tasks not done
  • Update project description to reflect J1A/J1B and 6 V rail splitting
  • Update system architecture mermaid diagram with J1A/J1B, BankA_6V, BankB_6V
  • Add mirrored 2×10 right-angle IDC headers and configure GND pins
  • Remap CH1–CH32 from U1/U2 to new headers
  • Split rails: rename U7.OUT→BankA_6V (with C6), U8.OUT→BankB_6V (with C7)
  • Validate full power path (BAT→J2→U6→U7/U8→banks)
  • Sync schematic to PCB layout
  • Update BOM (remove old, add headers)
  • Run ERC and DRC
  • Add “Pin Mapping Report” project property
Tasks I cannot do for you
  • Sever all net connections from J1 pins
  • Remove component symbol and footprint of J1
  • Add two mirrored IDC headers (MPN 3020-20-0200-00) as J1A and J1B (IDC Header 2×10 RA)
  • Wire pins 5, 10, 15, and 20 of both headers to GND
  • Remove J1 entry from the BOM
Success criteria
  • None of the success criteria have been met.
Recommended next step Decide on how to handle the connector removal and header addition. If you’d like me to proceed with schematic edits you can perform, please confirm or provide guidance on outsourcing those tasks.
83 days
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  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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  • Generic Resistor
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    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
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  • Generic Capacitor
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    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
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  • Generic Inductor
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Traditional Bronze Jetpack

Traditional Bronze Jetpack thumbnail
Two-Bank 6 V Igniter Firing System with Onboard 2S LiFePO4 Pack, S-8252A Protection, BQ24618 LiFePO4 Charger (3 A, 3.6 V Fast, <50 mA Termination, 3.8 V HPPC, 3.5 V Float), 32 SOT-223 MOSFET Outputs via MCP23017, with Reserved PCB Areas for Dual 26650 Holders, 34-pin IDC, and Barrel Jack Input #LiFePO4 #Battery #BMS

Properties

Two-bank 6 V igniter firing system with independent eFuse protection and low-droop power path, controlled by ESP32-S3 with GPIO expansion for multiple ignition channels.

5

%

2S LiFePO4 pack with S-8252A protection, BQ24618 charger, TPS54821 6 V buck feeding dual TPS25982 eFuse banks, each with bulk capacitance sized to support up to 6 A with ≤0.10 V droop over a 1 s pulse, and brought out to a 34-pin IDC connector; ESP32-S3 and dual MCP23017 expanders powered from MP1584 3.3 V buck for control of two independent igniter banks.

5

%

LCSC

4 positions × 4 igniters per side; channels 1–16 in Bank A; 17–32 in Bank B

monthly

Battery

ti.com/lit/ds/symlink/bq24618.pdf

10000

hours

solderpad.org/licenses/SHL-2.1/

Arduino

WiFi

Energy

flowchart TD H1["26650 Holder 1"] --> H2["26650 Holder 2"] H2 --> P1["S-8252A Protector"] P1 --> P2["BQ24618 Charger"] P2 --> P3["TPS54821 6V Buck"] P3 --> F1["TPS25982 eFuse Bank A"] P3 --> F2["TPS25982 eFuse Bank B"] F1 --> J1["34-pin IDC Connector"] F2 --> J1 subgraph Control U1["MP1584 3.3V Buck"] --> U2["ESP32-S3"] U2 --> U3["MCP23017 Expander 1"] U2 --> U4["MCP23017 Expander 2"] end

25

Pricing & Availability

Distributor

Qty 1

Arrow

$71.02–$76.58

Digi-Key

$30.44–$864.48

LCSC

$39.51–$44.12

Mouser

$43.99–$916.29

TME

$23.29

Verical

$218.43–$242.79

Controls