# Brainstorm a new project with AI [Example] ## Description Cost-Effective USB-C 2S Li-Ion Charger with Integrated 1W LED Flashlight - Fully Discrete, Generic Components, Minimalist Design ## Project Details - **Owner:** ransu21 - **Created:** 10/23/2025 - **Last Updated:** 10/23/2025 - **Visibility:** Public - **System Architecture:** ```mermaid graph LR USB_C["USB-C Input"] --> Boost["Boost Converter"] Boost --> CC_CV["CC/CV Charger"] CC_CV --> Pack["2S Battery Pack"] Pack --> Prot["Reverse-Polarity Protection"] Pack --> Flash["Flashlight"] ``` - **Manufacturing Quantity Target:** 10 - **Power Requirements:** USB - **Connectivity:** USB - **Domain:** Consumer Electronics - **Stars:** 1 ## Key Components ### D1 — [USBLC6-2P6](https://www.flux.ai/kicad-part-library/usblc6-2p6~djt.md) - Role Details: USB ESD/TVS diode array for CC and USB data lines - Manufacturer Part Number: USBLC6-2P6 - Role: Protection - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-2.pdf - Package or Case Code: SOT-666 **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D2 — [BZX84-B8V2,235](https://www.flux.ai/lcsc/bzx84-b8v2c235~tf51.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407250956_Nexperia-BZX84-B8V2-235_C550932.pdf - Manufacturer Part Number: BZX84-B8V2,235 - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-BZX84-B8V2-235_C550932.html - Part Type: Zener Diodes - Role Details: CV regulation Zener - LCSC Part Number: C550932 - JLCPCB Part Class: Extended Part - Role: Voltage Reference - Manufacturer Name: Nexperia(安世) **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### D3 — [B5819WS-TP](https://www.flux.ai/adrian95/b5819ws-tp~s1q.md) - Part Type: Diode - Role Details: Reverse-current protection for input USB rail - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Micro Commercial Co - Role: Protection - Datasheet URL: https://www.mccsemi.com/pdf/Products/B5817WS-B5819WS(SOD-323).PDF - Manufacturer Part Number: B5819WS-TP **Pins:** - A [pin 2] - K [pin 1] ### D4 — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Role: Rectification - Part Type: Diode - Manufacturer Part Number: SS14 - Role Details: Boost converter rectifier - Manufacturer Name: Slkor(SLKORMICRO Elec.) - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Anode [pin A] - Cathode [pin C] ### D5 — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Manufacturer Name: Slkor(SLKORMICRO Elec.) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Role Details: Reverse Polarity Protection Schottky Diode - Manufacturer Part Number: SS14 - Role: Protection - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf **Pins:** - Anode [pin A] - Cathode [pin C] ### D6 — [S2-3030WOA -1W](https://www.flux.ai/lcsc/s2-3030woa-1w~why0.md) - Part Type: Light Emitting Diodes (LED) - Manufacturer Name: TUOZHAN(拓展光电) - Role Details: Flashlight 1 W LED - Manufacturer Part Number: S2-3030WOA -1W - LCSC Part Number: C2827257 - Role: LED},{ - Package or Case Code: LED-SMD_L3.1-W3.1-LS3.3-RD - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - K [pin 1] ### F1 — [1812L200/12DR](https://www.flux.ai/jecstronic/1812l20012dr~98l.md) - Role: Protection - Part Type: Fuse - Manufacturer Name: Littelfuse Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1812L150/12DR - Current Rating: 2A - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/resettable_ptcs/littelfuse_ptc_1812l_datasheet.pdf.pdf - Role Details: Input resettable fuse, 12 V, 2 A **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [UJ20-C-V-G-SMT-P16-TR-65](https://www.flux.ai/adrian95/uj20-c-v-g-smt-p16-tr-65~lat.md) - Manufacturer Name: Same Sky - Package or Case Code: UJ20CVGSMTP16TR65 - Role Details: USB-C sink front-end connector - Part Type: USB C - Role: Connector - Manufacturer Part Number: UJ20-C-V-G-SMT-P16-TR-65 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/uj20-c-v-g-smt-p16-tr-65.pdf **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - DUMMY_1 [pin 1] - DUMMY_2 [pin 2] - DUMMY_3 [pin 3] - DUMMY_4 [pin 4] - GND_1 [pin A1] - GND_2 [pin A12] - GND_3 [pin B1] - GND_4 [pin B12] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS_1 [pin A4] - VBUS_2 [pin A9] - VBUS_3 [pin B4] - VBUS_4 [pin B9] ### J2 — [BH-18650-B1BA002](https://www.flux.ai/markwuflux/bh-18650-b1ba002~i9.md) - Manufacturer Name: ASE Technology Holding Co. Ltd. (ASX) - DPN: C2988620 - Role: Connector - Role Details: 2×18650 Battery Holder - Manufacturer Part Number: BH-18650-B1BA002 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204021730_MYOUNG-BH-18650-B1BA002_C2988620.pdf **Pins:** - - [pin 2] - + [pin 1] ### Q1 — [IRLML0030TRPBF](https://www.flux.ai/jecstronic/irlml0030trpbf~48d.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: IRLML0030TRPBF - Part Type: Transistor - Role: Switching - Manufacturer Name: Infineon Technologies - Role Details: Boost converter switching transistor - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLML0030_DataSheet_v01_01_EN-3363466.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q2 — [ZXMP3A13FTA](https://www.flux.ai/vasyl/zxmp3a13fta~o1j.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Diodes Incorporated - Role Details: Reverse-polarity protection MOSFET - Manufacturer Part Number: ZXMP3A13FTA - Part Type: Single FETs, MOSFETs - Role: Protection - Datasheet URL: https://www.diodes.com/assets/Datasheets/ZXMP3A13F.pdf **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — [MMBT3906LT3G](https://www.flux.ai/openpartlist/mmbt3906lt3g~9v.md) - Role: Current Limiting - Datasheet URL: https://www.onsemi.com/pdf/datasheet/mmbt3906lt1-d.pdf - Manufacturer Name: onsemi - Manufacturer Part Number: MMBT3906LT3G - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: CC stage PNP transistor **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### SW1 — [BD01](https://www.flux.ai/jecstronic/bd01~tx1.md) - Part Type: Switch - Manufacturer Part Number: BD01 - Role: Switch - Manufacturer Name: C&K - Role Details: Manual on/off slide switch for flashlight - Datasheet URL: https://www.ckswitches.com/media/1331/bd.pdf **Pins:** - P1 - P2 *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ransu21/brainstorm-a-new-project-with-ai-example~1j](https://www.flux.ai/ransu21/brainstorm-a-new-project-with-ai-example~1j).* --- *Generated from [https://www.flux.ai/ransu21/brainstorm-a-new-project-with-ai-example~1j](https://www.flux.ai/ransu21/brainstorm-a-new-project-with-ai-example~1j)*