4 layers65 × 56 mm
2 layers99.1 × 78.7 mm
Prototype 1
22Limac/prototype_1- Size
- 99.1 × 78.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 28
- Pads
- 124
- Tracks, vias
- 213, 16
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 Jun 2019
- Updated
- 24 Jun 2019
Overview
Prototype 1 is an open-source printed circuit board by 22Limac, from the 22Limac/prototype_1 repository on GitHub. It is a 2-layer board of 99.1 × 78.7 mm with 41 parts on 28 nets, routed with 213 tracks and 16 vias.
It is built around the LTC4002ES8-4.2#PBF, TPS2557DRB and CSD17307Q5A, with the B330 among its other parts. Its parts include 9 resistors, 7 capacitors, 7 connectors, 3 ICs and 3 diodes.
Main components
4
LTC4002ES8-4.2#PBF
SO-8-40℃~+85℃ 1 10uA 4.2V 4.7V~22V Charging IC Lithium Battery Support Support SO-8 Battery Management ROHSAnalog DevicesBattery Management ICs
TPS2557DRB
SON-8(3x3)-40℃~+125℃ 1 2.5V~6.5V 22mΩ 5A Active High High Side Switch Overcurrent Protection(OCP)、Overtemperature protection (OTP) SON-8(3x3) Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
CSD17307Q5A
SON-8(5x6)-55℃~+150℃ 1 N-channel 1.8V 17.3mΩ@3V 30V 36pF 375pF 3W 5.2nC@4.5V 700pF 73A N-Channel SON-8(5x6) MOSFETs ROHSTexas InstrumentsMOSFETs
B330
SMC-55℃~+150℃ 1 Independent 100A 100uA@30V 30V 3A 500mV@3A SMC Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Conn_01x01_Female | Connector_PinSocket_2.00mm:PinSocket_1x01_P2.00mm_Vertical | J1, J2, J3, J5 |
| 4 | TestPoint | Connector_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical | TP1, TP2, TP3, TP4 |
| 3 | 0.1u | Capacitor_SMD:C_1206_3216Metric | C3, C5, C6 |
| 3 | SW_Push | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin | SW1, SW2, SW3 |
| 2 | 2.2k | Resistor_SMD:R_1206_3216Metric | R2, R3 |
| 2 | 2k | Resistor_SMD:R_1206_3216Metric | R1, R12 |
| 2 | 5M | Resistor_SMD:R_1206_3216Metric | R4, R5 |
| 2 | CSD17307Q5A | Package_TO_SOT_SMD:TDSON-8-1 | Q1, Q2 |
| 2 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J6, J7 |
| 2 | LED | LED_SMD:LED_1206_3216Metric | D1, D3 |
| 1 | 0.47u | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 1.64u | Inductor_SMD:L_1206_3216Metric | L1 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric | C4 |
| 1 | 150u | Capacitor_SMD:C_1206_3216Metric | C7 |
| 1 | 20k | Resistor_SMD:R_1206_3216Metric | R11 |
| 1 | 22u | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 330 | Resistor_SMD:R_1206_3216Metric | R7 |
| 1 | 59m | Resistor_SMD:R_1206_3216Metric | R6 |
| 1 | B330 | Diode_SMD:D_SMC | D2 |
| 1 | Cell1 | Battery:BatteryHolder_Keystone_1042_1x18650 | BT1 |
| 1 | Conn_01x02_Female | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Vertical | J4 |
| 1 | LTC4002ES8-4.2 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | LTC6995-1 | Package_TO_SOT_SMD:TSOT-23-6_HandSoldering | U3 |
| 1 | Si6435ADQ | Package_SO:TSSOP-8_4.4x3mm_P0.65mm | Q3 |
| 1 | TPS2557 | tps2557:TPS2557 | U4 |
Questions
How big is the Prototype 1 PCB?
It measures 99.1 × 78.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Prototype 1 use?
41 parts, built around the LTC4002ES8-4.2#PBF, TPS2557DRB, CSD17307Q5A and B330. 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 Prototype 1 KiCad files?
From the 22Limac/prototype_1 repository on GitHub, at the commit this page was made from: the board is Main.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Prototype 1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask 22Limac before reusing the design.
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