IC1 Overview and Applications
Started implementing a plan
#Goal
- Complete the USB-C Li-ion charging solution by finalizing the TP4056 charging circuit with proper connections for USB-C power, Li-ion battery, and protection circuitry. Additionally, route the TP4056 status outputs (CHRG and STDBY) to spare ESP32-S3 GPIOs with proper pull-ups while ensuring ERC passes cleanly.
#Implementation plan
1. Finalize TP4056 (U8) wiring
1. Connect VBUS_FUSED (from USB-C via Fuse F1) to TP4056 VCC and ensure proper input decoupling with a capacitor.
2. Connect BAT pin of TP4056 to battery net (VBAT) at the JST connector (J2).
3. Set and add resistor (RPROG) to program target ICHG for the desired charging current.
4. Connect the TEMP pin either to the NTC sensor (NTC1) or disable if not used.
5. Configure and tie CE/EN as per the chosen mode of operation.
2. Route CHRG and STDBY signals
1. Connect the CHRG and STDBY outputs on the TP4056 to designated spare GPIOs on the ESP32-S3 (IC2).
2. Add proper pull-up resistors to 3V3 for both signals.
3. Label the nets appropriately to reflect their function.
3. Complete the battery protection circuit
1. Course connect the DW01A (U9) and the 8205A dual MOSFET (Q4) between the battery connector (J2) and VBAT as per design.
2. Add a bulk capacitor on the battery side to stabilize the VBAT rail.
4. Validate power rails and properties
1. Check interconnection of VBUS (5V), VBAT (3.7V battery), and 3V3 (AMS1117 output) for consistency.
2. Update any net or component properties as required by design changes.
3. Terminate any unused pins to avoid ERC warnings.
5. Run ERC and resolve any remaining issues
1. Execute ERC to verify all schematic connections and design rules.
2. Address any warnings or errors until ERC is clean.
#Success criteria
- TP4056 wiring is complete with correct connections (VBUS_FUSED to VCC, BAT to VBAT/J2, RPROG set properly, TEMP handled via NTC1 or disabled).
- CHRG and STDBY are successfully routed to ESP32-S3 GPIOs with appropriate pull-up resistors to 3V3.
- Battery protection circuit with DW01A and 8205A is correctly connected between the battery and VBAT, including the battery-side bulk capacitor.
- All power rails are validated and any unneeded connections are terminated.
- The ERC completes without any errors or warnings, ensuring that the schematic meets all design requirements.
Task unable_to_complete.
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- TP4056 wiring: ensure F1 -> VBUS_FUSED -> U8 VCC with an input capacitor; U8 BAT -> VBAT -> J2; set RPROG (add resistor if missing) for target charge current; tie TEMP to NTC1 or disable; set CE/EN.
- CHRG/STDBY to ESP32-S3: wire U8 CHRG and STDBY to spare GPIOs on IC2 and add pull-ups to 3V3.
- Battery protection: wire U9 (DW01A) + Q4 (8205A) between J2 and the protected battery rail; add a battery-side bulk capacitor.
- Validation + ERC: re-run ERC using @review and resolve any remaining warnings (unused pins, missing power pins, pull-ups, etc.) until ERC is fully clean.
Ready.
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- 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 #powerjharwinbarrozo11.4M
- 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 #CommonPartsLibraryjharwinbarrozo1.5M
- 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 #CommonPartsLibraryjharwinbarrozo1.5M
- 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 #genericsjharwinbarrozo15.4k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
Inspect
[Multi-layer] JLCPCB Constraints
![[Multi-layer] JLCPCB Constraints](https://img-cdn.flux.ai/eyJidWNrZXQiOiJncmF2aXRvbi1lbGVjdHJpYy1zeW1ib2xzIiwia2V5IjoiZG9jdW1lbnRfYXNzZXRzL211bHRpLWxheWVyLXRodW1iLWE3NzgwN2M1LWIxNmQtNGNmMi04YzZkLWI3MDRiNzVhYTEyZC5wbmciLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjEzNiwiaGVpZ2h0IjoxMzYsImZpdCI6ImNvbnRhaW4iLCJiYWNrZ3JvdW5kIjp7InIiOjAsImciOjAsImIiOjAsImFscGhhIjowfX19LCJvdXRwdXRGb3JtYXQiOiJ3ZWJwIn0=)
Controls
Properties
mm
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Arrow | $32.88–$34.75 | |
| Digi-Key | $18.00–$26.52 | |
| LCSC | $37.68–$38.12 | |
| Mouser | $21.77 | |
| TME | $2.16 | |
| Verical | $15.41–$22.56 | |
Assets
nv_logo.svgid=nv_logo
- multi-layer-thumb.png
id=multi-layer-thumb
- Cuoricino schedino v1.dxf
id=Cuoricino schedino v1
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