4 layers90 × 35 mm
VehicleCurrentSense PCB
nsm81/VehicleJunctionBox_PCBs
The junction box is an intermediate stage between the accumulator and inverter. It contains an HVD, a current sensor, discharge circuitry, TSAL and TSMPs.
64 parts1
4 layers100 × 100 mm
VehicleJunctionBoxMotherboard PCB
nsm81/VehicleJunctionBox_PCBs1The junction box is an intermediate stage between the accumulator and inverter. It contains an HVD, a current sensor, discharge circuitry, TSAL and TSMPs.
- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 111
- Nets
- 75
- Pads
- 353
- Tracks, vias
- 333, 88
- Pours
- 20
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 27 Jun 2023
- Updated
- 2 Aug 2023
Overview
VehicleJunctionBoxMotherboard PCB is an open-source printed circuit board by nsm81, from the nsm81/VehicleJunctionBox_PCBs repository on GitHub. It is a 4-layer board of 100 × 100 mm with 111 parts on 75 nets, routed with 333 tracks and 88 vias.
It is built around the LMV321, TLV7031DBV and TLP2361(E, with the ACPL-K30T-000E, AMS1117-5.0 and CRE1S1205SC among its other parts. Its parts include 40 resistors, 22 capacitors, 14 ICs, 12 diodes and 8 connectors.
Main components
11
LMV321
SOT-23-5L-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHSJiangsu Changjing Electronics Technology (CJ)Operational AmplifierTLV7031DBV
SOT-23-5-40℃~+125℃ 1 1.6V~6.5V 100uV 1pA 2pA 315nA 3us 4.5ns 73dB 7V 7mV Built-in hysteresis Push-pull Rail-to-rail input SOT-23-5 Comparators ROHSTexas InstrumentsComparators
TLP2361(E
SO-6,5LEAD-40℃~+125℃ 1.5V 1.6mA 10mA 15Mbps 2.7V~5.5V 20kV/us 3.75kV 5V 6V 6mA 80ns 80ns DC SO-6,5LEAD Logic Output Optoisolators ROHSToshibaLogic Output Optoisolators
ACPL-K30T-000E
SOIC-8-6.8mm-40℃~+125℃ 1 1.55V 5kV SOIC-8-6.8mm Logic Output Optoisolators ROHSBroadcom LimitedLogic Output Optoisolators
AMS1117-5.0
SOT-223-40℃~+125℃ 1 1.3V 15V 1A 5V 60dB Fixed Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CRE1S1205SC
SIP-4UncategorisedMurata
NA555D
SOIC-8-40℃~+105℃ 1 200mA 2mA 4.5V~16V Adjustable duty cycle oscillation、Reset function SOIC-8 555 Timers / Counters ROHSTexas InstrumentsTimers / CountersSN74LVC1G04DBVTE4
SOT-23-5-40℃~+125℃ 1 1.65V~5.5V 1.7V~2V 10uA 3.7ns@5V,50pF 32mA 32mA 700mV~800mV 74LVC Power shutdown protection SOT-23-5 Inverters ROHSTexas InstrumentsInverters
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
FDMS86255
Power56-8-55℃~+150℃ 1 N-channel 15.5mΩ@6V 150V 2.7W 20pF 4.48nF 410pF 45A 4V 63nC@10V N-Channel Power56-8 MOSFETs ROHSonsemiMOSFETs
IXTY1R6N100D2
DPAK1000V, 1.6A, N-Channel High Voltage MOSFETIXYSUncategorised
README
README.mdVehicleJunctionBox
The junction box is an intermediate stage between the accumulator and inverter. It contains an HVD, a current sensor, discharge circuitry, TSAL and TSMPs.
PCBs & Enclosure
Block Diagram
Current Sense MCU IO
| Description | IO |
|---|---|
| Local Fault | IO34 |
| Upstream Fault | IO35 |
| STATUS LED | IO12 |
| CAN RX | IO32 |
| CAN TX | IO26 |
| SDA | IO4 |
| SCL | IO15 |
| VREF | IO19 |
| LEM_OUT | IO21 |
DTM PinOut
| Pin | Description |
|---|---|
| 1 | GLV+ |
| 2 | BSPD Test Current + |
| 3 | BSPD Test Current - |
| 4 | GND |
| 5 | DOC Fault |
| 6 | TSAL Green |
| 7 | TSAL Red |
| 8 | BSPD 5kW Detect |
| 9 | CAN+ |
| 10 | CAN- |
| 11 | SD Loop In |
| 12 | SD Loop Out |
Parts
111| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100n | Capacitor_SMD:C_0603_1608Metric | C4, C5, C6, C10, C11, C12, C13, C14, C16, C18, C19, C20, C23, C25, C26 |
| 7 | Green | LED_SMD:LED_0603_1608Metric | D1, D2, D4, D5, D6, D7, D12 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R8, R11, R20, R23, R33, R49 |
| 4 | 1k | Resistor_SMD:R_0603_1608Metric | R18, R30, R35, R37 |
| 4 | 4.2k | Resistor_SMD:R_0603_1608Metric | R7, R10, R17, R31 |
| 4 | 510k | Resistor_SMD:R_1206_3216Metric | R12, R13, R14, R15 |
| 4 | DIS-10k | Resistor_SMD:R_4020_10251Metric | R1, R2, R3, R4 |
| 3 | 4.7k | Resistor_SMD:R_0603_1608Metric | R5, R19, R24 |
| 3 | TLV7031DBV | Package_TO_SOT_SMD:SOT-23-5 | U2, U6, U10 |
| 2 | 100R | Resistor_SMD:R_0603_1608Metric | R25, R26 |
| 2 | 100k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1, RV2 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R27, R28 |
| 2 | 15k | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R6, R9 |
| 2 | 18k | Resistor_SMD:R_0603_1608Metric | R41, R42 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D8, D10 |
| 2 | 22u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 5.6k | Resistor_SMD:R_0603_1608Metric | R39, R43 |
| 2 | 771-PLVA650A | Package_TO_SOT_SMD:SOT-23 | D3, D11 |
| 2 | FDMS86255 | Package_TO_SOT_SMD:TDSON-8-1 | Q3, Q4 |
| 2 | MCP9502PT-115E | Package_TO_SOT_SMD:SOT-23-5 | U3, U5 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H3, H4 |
| 2 | TLP2361 | Package_SO:SO-5_4.4x3.6mm_P1.27mm | U7, U20 |
| 2 | Thresh | UCM_Components:1206 Testpoint | TP3, TP4 |
| 1 | 100u | Capacitor_SMD:CP_Elec_6.3x5.4 | C8 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 11k | Resistor_SMD:R_0603_1608Metric | R29 |
| 1 | 16k | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 25k | Resistor_SMD:R_1206_3216Metric | R16 |
| 1 | 2A | Fuse:Fuse_1206_3216Metric | F2 |
| 1 | 330R | Resistor_SMD:R_0603_1608Metric | R32 |
| 1 | 330n | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 47u | Inductor_SMD:L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L1 |
| 1 | ACPL-K30T-000E | Package_SO:SSO-8_6.8x5.9mm_P1.27mm_Clearance8mm | U15 |
| 1 | AMS1117-5.0 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | CRE1S1205SC | Converter_DCDC:Converter_DCDC_Murata_CRE1xxxxxxSC_THT | U4 |
| 1 | Conn_01x07 | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Horizontal | J9 |
| 1 | HV+ | TestPoint:TestPoint_Pad_4.0x4.0mm | J5 |
| 1 | HV- | TestPoint:TestPoint_Pad_4.0x4.0mm | J6 |
| 1 | HVD IL | Connector_AMASS:AMASS_XT30U-F_1x02_P5.0mm_Vertical | J1 |
| 1 | Heatsink_Pad_2Pin | UCM_Components:MOSFET Heatsink | HS1 |
| 1 | INA253 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U12 |
| 1 | ISense Out | UCM_Components:1206 Testpoint | TP2 |
| 1 | IXTY1R6N100D2 | Package_TO_SOT_SMD:TO-252-2 | Q1 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5 | U13 |
| 1 | NA555D | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U9 |
| 1 | Red | LED_SMD:LED_0603_1608Metric | D9 |
| 1 | SN74LVC1G04DBVT | Package_TO_SOT_SMD:SOT-23-5 | U8 |
| 1 | SSM3J328R LF | Package_TO_SOT_SMD:SOT-23 | Q5 |
| 1 | TS Voltage Divider | UCM_Components:1206 Testpoint | TP1 |
| 1 | TSMP GLV- | Connector:Banana_Cliff_FCR7350x_S16N-PC_Horizontal | J7 |
| 1 | TSMP+ | Connector:Banana_Cliff_FCR7350x_S16N-PC_Horizontal | J3 |
| 1 | TSMP- | Connector:Banana_Cliff_FCR7350x_S16N-PC_Horizontal | J4 |
| 1 | Vehicle | DTM_Header:TE_DTM13-12PA | J2 |
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Questions
How big is the VehicleJunctionBoxMotherboard PCB PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the VehicleJunctionBoxMotherboard PCB use?
111 parts, built around the LMV321, TLV7031DBV, TLP2361(E and ACPL-K30T-000E. 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 VehicleJunctionBoxMotherboard PCB KiCad files?
From the nsm81/VehicleJunctionBox_PCBs repository on GitHub, at the commit this page was made from: the board is VehicleJunctionBoxMotherboard_PCB/VehicleJunctionBoxMotherboard_PCB.kicad_pcb and its schematic VehicleCurrentSense_PCB/VehicleCurrentSense_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the VehicleJunctionBoxMotherboard PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask nsm81 before reusing the design.