LiPo Battery Availability Inquiry

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Work completed
  • Updated project description and hashtags
  • Defined system architecture (mermaid diagram in project properties)
  • Added and configured major ICs: USB-C receptacle (CON1), USB-PD sink controller (U1), 3.3 V LDO (U2)
  • Integrated transient and inrush protection: SMBJ5.0A TVS diode (D20), RGEF500 PTC fuse (F1), EMI bead (L1)
  • Placed supporting components: 100 µF bulk cap, 100 nF decoupling caps, 4.7 kΩ I²C pull-ups with pads for optional 2.2 kΩ, per-slot PTCs with decoupling
  • Added 8 XIAO slot connectors, test points for 5 V/SDA/SCL, and power LED
  • Routed all nets (VBUS → protections → PD controller → 5 V rail; rails → slots; I²C bus; CC pull-downs)
  • Ran ERC, corrected component values/ratings (pull-up/down resistors, caps) and resolved warnings
  • Researched module dimensions; set board outline for eight modules (23.5 mm×17.8 mm each, 1 mm gap, 5 mm margins)
  • Added four M3 mounting holes at corners
Tasks not automated
  • Verifying and correcting PCB footprints
  • Configuring PCB stackup to Standard 4-Layer
  • Assigning inner copper planes (Layer 2=5 V, Layer 3=GND)
  • Enabling ground pour on top/bottom layers
Success criteria
All success criteria have been met:
  • 8 slots have 5 V/GND connections with PTCs and decoupling caps
  • USB-C input configured with CC pull-downs, TVS, PTC, EMI bead, and PD controller set to 5 V/5 A
  • I²C bus implemented with 4.7 kΩ pull-ups from dedicated 3.3 V LDO; optional 2.2 kΩ pads provided
  • Schematic passes ERC; USB-C PD spec requirements addressed
Recommended next step
Please review the board outline, mounting holes, and then proceed to the PCB layout phase by verifying footprints, setting the 4-layer stackup, assigning copper planes, and enabling ground pours before auto-placing and routing components.
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D19
D13
D11
GND
D20 K - F1 1
MTDO
MTDI
D17
3V3
F1 2 - U1 VSYS
D10
D14
D12
5V
GND_1
D16
D18
D15
F1
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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  • Net Portal
    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
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  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
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  • Generic Resistor
    Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
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  • Generic Capacitor
    Generic Capacitor
    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 10,000uF 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 20pF 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
    jharwinbarrozo
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  • Generic Inductor
    Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
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  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
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  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
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  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
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Inspect

Seeed Studio XIAO ESP32S3 Plus

Seeed Studio XIAO ESP32S3 Plus
Description

Created
Last updated by gokux
1 Contributor(s)
gokux

Controls

Properties

Module Dimensions
23.5 mm x 17.8 mm
Manufacturer Part Number
102010671
System Architecture
graph LR UC[USB-C Receptacle] TVS[TVS Diode] EF[Input eFuse/PTC] PD[USB-PD Sink Controller] FiveV[Shared 5V Rail] GND[Shared GND Rail] LDO[LDO 3.3V] PU[I2C Pull-ups] SDA[SDA Bus] SCL[SCL Bus] UC --> TVS --> EF --> PD --> FiveV UC -->|CC1/CC2| PD PD --> GND FiveV --> Slot1[XIAO Slot 1] FiveV --> Slot2[XIAO Slot 2] FiveV --> Slot3[XIAO Slot 3] FiveV --> Slot4[XIAO Slot 4] FiveV --> Slot5[XIAO Slot 5] FiveV --> Slot6[XIAO Slot 6] FiveV --> Slot7[XIAO Slot 7] FiveV --> Slot8[XIAO Slot 8] GND --> Slot1 GND --> Slot2 GND --> Slot3 GND --> Slot4 GND --> Slot5 GND --> Slot6 GND --> Slot7 GND --> Slot8 FiveV --> LDO --> PU PU --> SDA PU --> SCL SDA --> Slot1 SDA --> Slot2 SDA --> Slot3 SDA --> Slot4 SDA --> Slot5 SDA --> Slot6 SDA --> Slot7 SDA --> Slot8 SCL --> Slot1 SCL --> Slot2 SCL --> Slot3 SCL --> Slot4 SCL --> Slot5 SCL --> Slot6 SCL --> Slot7 SCL --> Slot8

Availability & Pricing

DPNStockQty 1
10$7.99

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