4 layers121 × 40 mm
PowerAmplifier
BlockWorker/ModularAudio
Compact, modular, versatile, hi-fi audio system concept.
156 parts2
4 layers40 × 40 mm
BatteryCharger
BlockWorker/ModularAudio2Compact, modular, versatile, hi-fi audio system concept.
- Size
- 40 × 40 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 49
- Nets
- 30
- Pads
- 212
- Tracks, vias
- 203, 160
- Pours
- 141
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Jul 2024
- Updated
- 26 Sep 2025
Overview
BatteryCharger is an open-source printed circuit board by BlockWorker, from the BlockWorker/ModularAudio repository on GitHub. It is a 4-layer board of 40 × 40 mm with 49 parts on 30 nets, routed with 203 tracks and 160 vias.
It is built around the BQ24735, SIR638DP and BAS40-05, with the BSC059N04LS6 and SL1M among its other parts. Its parts include 18 capacitors, 13 resistors, 6 connectors, 5 transistors and 3 diodes. It belongs with the audio and music boards of this library.
Main components
5
BQ24735
UncategorisedTexas Instruments
SIR638DP
PowerPAK-SO-8-55℃~+150℃ 0.88mΩ@10V 1 N-channel 1.1V 10.5nF 250pF 40V 6.25W 62.8A 63nC@10V PowerPAK-SO-8 MOSFETs ROHSVishay IntertechnologyMOSFETs
BAS40-05
SOT-231 Pair Common Cathode 10uA@40V 120mA 1V@40mA 200mA 40V SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
BSC059N04LS6
TDSON-8FL-55℃~+175℃ 1 N-channel 2.3V 21pF 38W 40V 5.9mΩ@10V 59A 830pF 9.4nC@10V TDSON-8FL MOSFETs ROHSInfineon TechnologiesMOSFETs
SL1M
SOD-123FL-50℃~+150℃ 1 Independent 1.1V@1A 1A 1kV 1uA 30A SOD-123FL Diodes - General Purpose ROHSDIOTECDiodes - General Purpose
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0.1µF | Capacitor_SMD:C_0603_1608Metric | C4, C8, C9, C10, C16, C17, C18 |
| 3 | 4.02kΩ | Resistor_SMD:R_0603_1608Metric | R4, R5, R7 |
| 2 | 10nF | Capacitor_SMD:C_0603_1608Metric | C1, C13 |
| 2 | 10µF 35Vl x2 | Capacitor_SMD:C_1210_3225Metric | C6, C7 |
| 2 | 1µF 50Vl | Capacitor_SMD:C_0805_2012Metric | C2, C5 |
| 2 | GND_BRIDGE | BW_PassiveMechanical:HolePad_2.5mm_3.5mm | J5, J6 |
| 2 | SiR638DP | Package_SO:PowerPAK_SO-8_Single | Q1, Q2 |
| 1 | 10kΩ | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 10mΩ 1.5W | Resistor_SMD:R_0612_1632Metric | R11 |
| 1 | 10Ω | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 1µF | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 2.2nF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 2.2µF 50V | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | 210kΩ | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 22µF 25V x2 | Capacitor_SMD:C_1210_3225Metric | C15 |
| 1 | 28kΩ | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 2Ω 1W | BW_PassiveMechanical:R_0508_1220Metric | R3 |
| 1 | 3.3µH | BW_PassiveMechanical:L_Eaton_EXL1V0703 | L1 |
| 1 | 47kΩ | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | 4mΩ 2W | Resistor_SMD:R_0612_1632Metric | R2 |
| 1 | 64.9kΩ | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 82kΩ | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | ADAPTER | BW_Connectors:Molex_Mini-Fit_Max_2P_V_215915-1002 | J2 |
| 1 | BAS40-05 | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | BAT | BW_Connectors:TE_2042274_Solder | J3 |
| 1 | BQ24735 | BW_Active:VQFN-20-1EP_3.5x3.5mm_P0.5mm_EP2.05x2.05mm | U1 |
| 1 | BSC059N04LS6 | BW_Active:Infineon_PG-TDSON-8FL_6.15x5.15mm | Q4 |
| 1 | NCP51460 | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | SL1M | Diode_SMD:D_SOD-123F | D3 |
| 1 | SMBus+STATUS | BW_Connectors:Amphenol_MINITEK_WTB_1.25_5P | J4 |
| 1 | SQJ868EP | BW_Active:PowerPAK_SO-8L_Single_Improved | Q5 |
| 1 | SS0840WS | Diode_SMD:D_SOD-323_HandSoldering | D2 |
| 1 | SYS | BW_Connectors:TE_2042274_Solder | J1 |
| 1 | SiR500DP | Package_SO:PowerPAK_SO-8_Single | Q3 |
The 48 most common of 49 parts.
Questions
How big is the BatteryCharger PCB?
It measures 40 × 40 mm and has 4 copper layers, 1.61 mm thick.
What parts does the BatteryCharger use?
49 parts, built around the BQ24735, SIR638DP, BAS40-05 and BSC059N04LS6. 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.
Where can I download the BatteryCharger KiCad files?
From the BlockWorker/ModularAudio repository on GitHub, at the commit this page was made from: the board is BatteryCharger/BatteryCharger.kicad_pcb and its schematic 12VLDO/12VLDO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BatteryCharger design in my own project?
Its repository states no licence, so its author keeps all rights: ask BlockWorker before reusing the design.
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