
Li ion charger design
Harshavar8jdm/1S-Li-ion-Battery-Charger-Module
A single-cell (1S) Lithium-Ion / Lithium-Polymer battery charging PCB based on the Texas Instruments BQ24092 linear charger IC.

GPS PCB, schematics, code, expenses.
GPSPCB is an open-source printed circuit board by ThomasHODonnell, from the ThomasHODonnell/GPSPCB repository on GitHub. It is a 2-layer board of 47.4 × 39.8 mm with 69 parts on 106 nets, routed with 836 tracks and 138 vias.
It is built around the PE4259-63, SKY65404-31 and STA8090FG, with the SX1268IMLTRT, 74LVC2G00GT and BQ24092DGQT among its other parts. Its parts include 25 capacitors, 16 resistors, 9 ICs, 8 inductors and 1 diode.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 470nF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C13, C14, C19, C20, C21, C23, C25, C26 |
| 7 | 100nF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C12, C16, C17, C18, C22, C24, Ce |
| 5 | 1uH | Inductor_THT:L_Axial_L5.3mm_D2.2mm_P7.62mm_Horizontal_Vishay_IM-1 | L2, L5, L7, L8, Le |
| 4 | 100R | Resistor_SMD:R_0201_0603Metric | R1, R1, R3, R12 |
| 4 | 1uF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C6, C7, C11, C15 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5_Pad_TopOnly | H1, H2, H3, H4 |
| 3 | 100k | Resistor_SMD:R_0201_0603Metric | R9, R11, R15 |
| 2 | 15uH | Inductor_THT:L_Axial_L5.3mm_D2.2mm_P7.62mm_Horizontal_Vishay_IM-1 | L3, L4 |
| 2 | 21pF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C4, C5 |
| 2 | 5kR | Resistor_SMD:R_0201_0603Metric | R2, R8 |
| 2 | TL081HIDBVR | KiCadOP:SOT95P280X145-5N | IC2, IC5 |
| 1 | 0.1uF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C8 |
| 1 | 0.5pF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C9 |
| 1 | 0.6nH | Inductor_THT:L_Axial_L5.3mm_D2.2mm_P7.62mm_Horizontal_Vishay_IM-1 | L1 |
| 1 | 100kR | Resistor_SMD:R_0201_0603Metric | R14 |
| 1 | 1575AT43A0040E | KiCadANT:1575AT43A0040E | ANT1 |
| 1 | 1k | Resistor_SMD:R_0201_0603Metric | R4 |
| 1 | 1k5 | Resistor_SMD:R_0201_0603Metric | R7 |
| 1 | 1nF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C27 |
| 1 | 2k | Resistor_SMD:R_0201_0603Metric | R5 |
| 1 | 32Crystal | KiCad32MOSC:FC12M327680KDA0 | Y2 |
| 1 | 4.7uF | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J | C10 |
| 1 | 470k | Resistor_SMD:R_0201_0603Metric | R16 |
| 1 | 470kR | Resistor_SMD:R_0201_0603Metric | R10 |
| 1 | 50kR | Resistor_SMD:R_0201_0603Metric | R6 |
| 1 | 74LVC2G00GT | KiCad:74AVC9112GTX | IC6 |
| 1 | A10340 | KiCadTANT:A10340 | ANT2 |
| 1 | BATT+ | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1 |
| 1 | BATT- | TestPoint:TestPoint_Pad_2.0x2.0mm | TP2 |
| 1 | BQ24092DGQT | KiCadBatt:DGQ0010D_NV_N | U4 |
| 1 | LDO1.8 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | PE4259 | KiCadRFSwitch:SOT65P210X110-6N | IC4 |
| 1 | RED | LED_THT:LED_D3.0mm | D2 |
| 1 | SKY65404 | RF:Skyworks_SKY65404-31 | U2 |
| 1 | STA8090FG | KiCadGPS:BGA99C50P9X11_500X600X120 | IC1 |
| 1 | SX1268IMLTRT | KiCadTransIC:QFN50P400X400X100-25N-D | IC3 |
| 1 | USB | DX07S016JA1R1500:JAE_DX07S016JA1R1500 | J1 |
It measures 47.4 × 39.8 mm and has 2 copper layers, 1.6 mm thick.
69 parts, built around the PE4259-63, SKY65404-31, STA8090FG and SX1268IMLTRT. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the ThomasHODonnell/GPSPCB repository on GitHub, at the commit this page was made from: the board is GPSPCB.kicad_pcb and its schematic KICAD/GPSPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask ThomasHODonnell before reusing the design.

Harshavar8jdm/1S-Li-ion-Battery-Charger-Module
A single-cell (1S) Lithium-Ion / Lithium-Polymer battery charging PCB based on the Texas Instruments BQ24092 linear charger IC.



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