# Presidential Coffee Electromagnetic Shrinking Machine ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** heydari - **Created:** 3/29/2025 - **Last Updated:** 3/30/2025 - **Visibility:** Public - **Power Selection Circuit:** Automatic switching between power sources - **Battery Charger IC:** MCP73831 - **USB Power Input:** 5V - **Buck Converter (3.3V):** AP7333-33 - **Status Indicators:** LED indicators for charging and power status - **Buck Converter (1.8V):** AP7333-18 - **Diodes:** Schottky diodes - **Solar Panel:** 6V, 2W - **Capacitors:** For power stability (smoothing and decoupling) - **Boost Converter:** MT3608 - **Li-Ion Battery:** 3.7V, 2000mAh - **Regulated Outputs:** 5V, 3.3V, 1.8V rails ## Key Components ### D1 — [Schottky Diode](https://www.flux.ai/corynrobinson/schottky-diode~hs.md) - Package or Case Code: D_SOD-123 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf - Current: 0.5A - Breakdown Voltage: 20V - Designator: D1 - Part Type: Diode - Manufacturer Name: onsemi - Manufacturer Part Number: MBR0520LT1G - Purchase Url: https://octopart.com/mbr0520lt1g-onsemi-2933?r=sp **Pins:** - A - K ### D2 — [Schottky Diode](https://www.flux.ai/corynrobinson/schottky-diode~hs.md) - Part Type: Diode - Breakdown Voltage: 20V - Current: 0.5A - Package or Case Code: D_SOD-123 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf - Designator: D2 - Manufacturer Part Number: MBR0520LT1G - Purchase Url: https://octopart.com/mbr0520lt1g-onsemi-2933?r=sp - Manufacturer Name: onsemi **Pins:** - A - K ### D3 — [Schottky Diode](https://www.flux.ai/corynrobinson/schottky-diode~hs.md) - Purchase Url: https://octopart.com/mbr0520lt1g-onsemi-2933?r=sp - Manufacturer Part Number: MBR0520LT1G - Manufacturer Name: onsemi - Part Type: Diode - Breakdown Voltage: 20V - Designator: D3 - Current: 0.5A - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mbr0520lt1-d.pdf - Package or Case Code: D_SOD-123 **Pins:** - A - K ### D4 — [LED THT](https://www.flux.ai/jharwinbarrozo/led-tht~gr.md) - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V - Designator: LED1 - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Series Resistance: 0.42Ω **Pins:** - A [pin 2] - K [pin 1] ### IC1 — [AP7333-33SAG-7](https://www.flux.ai/adrian95/ap7333-33sag-7~7jv.md) - Manufacturer Part Number: AP7333-33SAG-7 - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP7333.pdf - Part Type: Integrated Circuit - Manufacturer Name: Diodes Incorporated - License: https://creativecommons.org/licenses/by/4.0/ - Designator: U3 **Pins:** - GND [pin 3] - IN [pin 1] - OUT [pin 2] ### J1 — [USB-C 2.0 Receptacle](https://www.flux.ai/corynrobinson/usb-c-20-receptacle~cf.md) - Designator: J1 - Part Type: USB C - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Manufacturer Name: GTC - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Manufacturer Part Number: USB4105-GF-A **Pins:** - CC1 [pin 6] - CC2 [pin 12] - D- [pin 7] - D- [pin 9] - D+ [pin 8] - D+ [pin 10] - GND [pin 16] - GND [pin 15] - GND [pin 2] - GND [pin 1] - SBU1 [pin 11] - SBU2 [pin 5] - VBUS [pin 4] - VBUS [pin 3] - VBUS [pin 14] - VBUS [pin 13] ### U1 — [MCP73831T-2ACI/OT](https://www.flux.ai/adrian95/mcp73831t-2aciot~922.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: Microchip Technology - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP73831-Family-Data-Sheet-DS20001984H.pdf - Designator: U1 - Manufacturer Part Number: MCP73831T-2ACI/OT **Pins:** - PROG [pin 5] - STAT [pin 1] - VBAT [pin 3] - VIN [pin 4] - VSS [pin 2] ### U3 — [AP7333-18SRG-7](https://www.flux.ai/lcsc/ap7333-18srg-7~qyi9.md) - Manufacturer Name: DIODES(美台) - Designator: U4 - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Manufacturer Part Number: AP7333-18SRG-7 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-AP7333-18SRG-7_C151043.pdf - JLCPCB Part Class: Extended Part - LCSC Part Number: C151043 - Part Type: Linear Voltage Regulators (LDO) - Product Info Url: https://lcsc.com/product-detail/Low-Dropout-Regulators-LDO_DIODES_AP7333-18SRG-7_AP7333-18SRG-7_C151043.html **Pins:** - GND [pin 1] - OUT [pin 2] - VIN [pin 3] ### U4 — [LTC4040EUFD](https://www.flux.ai/adrian95/ltc4040eufd~cdi.md) - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/4040fb.pdf - Manufacturer Part Number: LTC4040EUFD#PBF - Capacity: 2000mAh - Designator: BAT1 - Voltage: 3.7V - Manufacturer Name: Analog Devices Inc. - Package or Case Code: 24-QFN - Part Type: Battery **Pins:** - *CHRG - *FAULT - *PF0 - *RST - BAT - BSTFB - BSTOFF - CHGOFF - CLN - CLPROG - F0 - F1 - F2 - GND - IGATE - NTC - OVSNS - PFI - PROG - RSTFB - SW - SW - VIN - VSYS - VSYS *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/heydari/presidential-coffee-electromagnetic-shrinking-machine~mt](https://www.flux.ai/heydari/presidential-coffee-electromagnetic-shrinking-machine~mt).* --- *Generated from [https://www.flux.ai/heydari/presidential-coffee-electromagnetic-shrinking-machine~mt](https://www.flux.ai/heydari/presidential-coffee-electromagnetic-shrinking-machine~mt)*