Schematic Update Instructions

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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.
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Inspect

Traditional Bronze Jetpack

Traditional Bronze Jetpack
Description

Created
1 Contributor(s)
mikep6345

Controls

Properties

Safety Function
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.
Lead Time Change Threshold
5 %
Power Architecture Summary
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.
Price Change Threshold
5 %
Preferred Distributors
LCSC
Channel Mapping Summary
4 positions × 4 igniters per side; channels 1–16 in Bank A; 17–32 in Bank B
Pricing Notification Frequency
monthly
Power Requirements
Battery
Reliability Target (MTBF)
10000 hours
Software
Arduino
Connectivity
WiFi
Domain
Energy
System Topology Diagram
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
Manufacturing Quantity Target
25

Availability & Pricing

DistributorQty 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

Assets