# 18650 battery charging circuit ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** yudyud - **Created:** 6/22/2024 - **Last Updated:** 6/27/2024 - **Visibility:** Public - **Stars:** 2 ## Key Components ### D1-TL431 — [TL431LP](https://www.flux.ai/vasyl/tl431lp.md) - Manufacturer Name: Texas Instruments - Datasheet URL: http://www.ti.com/lit/ds/symlink/tl431.pdf - Manufacturer Part Number: TL431LP - Part Type: Integrated Circuit **Pins:** - A [pin 2] - K [pin 3] - REF [pin 1] ### D12-LED1 — [WP7113SRD/D](https://www.flux.ai/jecstronic/wp7113srdd.md) - Manufacturer Part Number: WP7113SRD/D - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP7113SRD-D.pdf - Forward Voltage: 1.85V - Manufacturer Name: Kingbright - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D13 — [1N4007](https://www.flux.ai/adrian95/1n4007.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N4007 - Datasheet URL: https://diotec.com/tl_files/diotec/files/pdf/datasheets/1n4001.pdf - Part Type: Diode - Manufacturer Name: Yangjie Technology **Pins:** - anode [pin 2] - cathode [pin 1] ### D2-TL431 — [TL431LP](https://www.flux.ai/vasyl/tl431lp.md) - Manufacturer Name: Texas Instruments - Datasheet URL: http://www.ti.com/lit/ds/symlink/tl431.pdf - Manufacturer Part Number: TL431LP - Part Type: Integrated Circuit **Pins:** - A [pin 2] - K [pin 3] - REF [pin 1] ### D3-TL431 — [TL431LP](https://www.flux.ai/vasyl/tl431lp.md) - Manufacturer Name: Texas Instruments - Datasheet URL: http://www.ti.com/lit/ds/symlink/tl431.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: TL431LP **Pins:** - A [pin 2] - K [pin 3] - REF [pin 1] ### D4-LED2 — [WP710A10SGD](https://www.flux.ai/jecstronic/wp710a10sgd.md) - Manufacturer Part Number: WP710A10SGD - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP710A10SGD.pdf - Manufacturer Name: Kingbright **Pins:** - A [pin 2] - K [pin 1] ### D6-TL431 — [TL431LP](https://www.flux.ai/vasyl/tl431lp.md) - Manufacturer Name: Texas Instruments - Datasheet URL: http://www.ti.com/lit/ds/symlink/tl431.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: TL431LP **Pins:** - A [pin 2] - K [pin 3] - REF [pin 1] ### F2 — [Fuse 0603 1608Metric](https://www.flux.ai/adrian95/fuse-0603-1608metric.md) - Part Type: Fuse **Pins:** - P1 - P2 ### LO-L10 — [MountingHole 2.5mm Pad](https://www.flux.ai/adrian95/mountinghole-25mm-pad.md) - Manufacturer Part Number: MountingHole_Pad **Pins:** - 1 ### Q1 — [TIP42A](https://www.flux.ai/jecstronic/tip42a.md) - Manufacturer Part Number: TIP42A - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: NTE Electronics, Inc - Datasheet URL: https://www.nteinc.com/specs/100to199/pdf/nte196.pdf **Pins:** - B [pin 1] - C [pin 2] - E [pin 3] ### Q2 — [TIP42A](https://www.flux.ai/jecstronic/tip42a.md) - Manufacturer Part Number: TIP42A - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: NTE Electronics, Inc - Datasheet URL: https://www.nteinc.com/specs/100to199/pdf/nte196.pdf **Pins:** - B [pin 1] - C [pin 2] - E [pin 3] ### Q3 — [TIP42A](https://www.flux.ai/jecstronic/tip42a.md) - Manufacturer Name: NTE Electronics, Inc - Datasheet URL: https://www.nteinc.com/specs/100to199/pdf/nte196.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TIP42A - Part Type: Transistor **Pins:** - B [pin 1] - C [pin 2] - E [pin 3] ### Q4 — [SS8550BBU](https://www.flux.ai/jecstronic/ss8550bbu.md) - Manufacturer Name: onsemi - Manufacturer Part Number: SS8550BBU - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/ss8550-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q6 — [SS8550BBU](https://www.flux.ai/jecstronic/ss8550bbu.md) - Manufacturer Name: onsemi - Manufacturer Part Number: SS8550BBU - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/ss8550-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q7 — [SS8550BBU](https://www.flux.ai/jecstronic/ss8550bbu.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/ss8550-d.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor - Manufacturer Part Number: SS8550BBU - Manufacturer Name: onsemi **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q8 — [SS8550BBU](https://www.flux.ai/jecstronic/ss8550bbu.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/ss8550-d.pdf - Manufacturer Part Number: SS8550BBU - Manufacturer Name: onsemi - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/yudyud/18650-battery-charging-circuit](https://www.flux.ai/yudyud/18650-battery-charging-circuit).* --- *Generated from [https://www.flux.ai/yudyud/18650-battery-charging-circuit](https://www.flux.ai/yudyud/18650-battery-charging-circuit)*