4 layers325 × 270 mm
2023-24 Power Supply 2
cdagher/BenderPower
Power Supply Hardware and Firmware for the Bender Autonomous Robotics Project
320 partsMIT
4 layers70 × 70 mm
Blue interface board
BetzDrive/interface-board5Power and signal conditioning board for the Betz Drive system
- Size
- 70 × 70 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 130
- Nets
- 123
- Pads
- 489
- Tracks, vias
- 784, 138
- Pours
- 24
- Routed
- Yes
- KiCad
- KiCad 5 (file 20200819)
- Created
- 11 Jul 2019
- Updated
- 11 Apr 2021
Overview
Blue interface board is an open-source printed circuit board by BetzDrive, from the BetzDrive/interface-board repository on GitHub. It is a 4-layer board of 70 × 70 mm with 130 parts on 123 nets, routed with 784 tracks and 138 vias.
It is built around the STM32L071KZT6, LMZ21700SILR and ADM2682EBRIZ, with the FAN3111ESX, FT232HL-REEL and LM46000PWP among its other parts. Its parts include 51 capacitors, 37 resistors, 11 ICs, 10 connectors and 7 diodes. It belongs with the interfaces and adapters boards and the STM32 boards of this library.
Main components
12
STM32L071KZT6
LQFP-32(7x7)-40℃~+85℃ 1.65V~3.6V 12bit 192KB 20KB 25 32 Bit 32MHz 6KB ARM Cortex-M0+ Built-in FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
LMZ21700SILR
USIP-8-40℃~+125℃ 1 1.75mm 17uA 3.5mm 3.5mm 3V~17V 650mA 900mV~6V 95% Short Circuit Protection、Over-temperature protection、Over Current Protection、Under Voltage Protection、Programmable output voltage、Light load efficient mode、Power-on timing control、Programmable soft start Step-down type USIP-8 DC-DC Power Modules ROHSTexas InstrumentsDC-DC Power Modules
ADM2682EBRIZ
SOIC-16-300mil-40℃~+85℃ 16Mbps 5000 SOIC-16-300mil Isolated RS-485/422 Transceivers with power ROHSAnalog DevicesIsolated RS-485/422 Transceivers With Power
FAN3111ESX
SOT-23-5-40℃~+125℃ -、Enable shutdown 1 1.4A 1.4A 4.5V~18V 5uA 8ns 9ns Low Side MOSFET SOT-23-5 Gate Drivers ROHSonsemiGate Drivers
FT232HL-REEL
LQFP-48(7x7)-40℃~+85℃ 1 1.62V~1.98V、2.97V~3.63V 480Mbps USB 2.0 USB to UART、USB to FIFO LQFP-48(7x7) USB Converters ROHSFTDIUSB Converters
LM46000PWP
HTSSOP-16-EP-40℃~+125℃@(TJ) 1 1V~28V 2.2MHz 3.5V~60V 500mA Adjustable Buck Buck Built-in Yes HTSSOP-16-EP DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TPD2E2U06DCKR-TP
SOT-323MOSFETsTECH PUBLIC
93LC56B/SN
SOIC-80℃~+70℃ 1,000,000 cycles 2.5V~5.5V 200 Years 2Kbit 2MHz Built-in power-on reset (POR)、Built-in write enable latch (WEL)、Power-down/Power-up protection circuit SPI SOIC-8 EEPROM ROHSMicrochip TechnologyEEPROM
LM5066PMH
HTSSOP-28-EP10V~80V HTSSOP-28-EP Surge Protection Devices (SPDs) ROHSTexas InstrumentsSurge Protection Devices (SPDs)
CC0603KRX7R9BB104
0603100nF 50V X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
ERA-3AEB1403V
0603-55℃~+155℃ 100mW 140kΩ Thin Film Resistor ±0.1% ±25ppm/℃ 0603 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface Mount
RC0603JR-0710KL
UncategorisedUnknown maker
README
README.mdInterface Board
This board is intended to connect a chain of 48 VDC RS-485 motor controllers to the outside world.
Features
-
USB - RS485 conversion. This is accomplished via the FT232H and ADM2682E IC's. The combination of these chips should provide full electrical isolation to the USB host and allow ~10 Mbps throughput to/from RS485.
-
Input power sanitizing. A LM5066 hotswap controller IC provides sane controlled voltage ramps when the device is hot-plugged, and cuts power to the system when it exceeds ~56 volts. An input TVS diode starts kicks in around 65 V.
-
Backdrive surge supressing. Sometimes when motors are aggressively backdriven by an external power source, significant voltages are generated "back" onto the motor bus. The board is equipped to detect this condition and dump power through a 10-ohm power resistor. Hysteresis and timing is provided by a STM32L071 microcontroller.
Resources
- Schematics in PDF
- KiCAD design files are found in
hardware - fabrication files for rev.A are found in
hardware/fab
Renderings
Parts
130| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C4, C12, C13, C14, C16, C17, C18, C20, C22, C24, C33, C34, C35, C47, C48 +3 |
| 6 | 140k | Resistor_SMD:R_0603_1608Metric | R10, R12, R22, R26, R27, R31 |
| 4 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R2, R4, R5 |
| 4 | 10n | Capacitor_SMD:C_0603_1608Metric | C5, C19, C23, C26 |
| 4 | 1u | Capacitor_SMD:C_0603_1608Metric | C29, C30, C37, C39 |
| 4 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C2, C3, C11, C15 |
| 4 | 470R | Resistor_SMD:R_0603_1608Metric | R7, R8, R18, R34 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 2.2k | Resistor_SMD:R_0603_1608Metric | R3, R32, R33 |
| 3 | 22u | Capacitor_SMD:C_1206_3216Metric | C42, C43, C49 |
| 3 | 600R | Resistor_SMD:R_0603_1608Metric | FB1, FB2, FB3 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C21, C25 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R9, R35 |
| 2 | 27p | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 437k | Resistor_SMD:R_0603_1608Metric | R20, R30 |
| 2 | 47u | Capacitor_SMD:C_1206_3216Metric | C45, C51 |
| 2 | 4n7 | Capacitor_SMD:C_0603_1608Metric | C44, C50 |
| 2 | GREEN | LED_SMD:LED_0603_1608Metric | D1, D7 |
| 2 | LMZ21700SIL | BLDC:SIL0008E | U10, U11 |
| 2 | PSMN4R8-100BSEJ | Package_TO_SOT_SMD:TO-263-2 | Q2, Q5 |
| 2 | RED | LED_SMD:LED_0603_1608Metric | D2, D6 |
| 2 | TPD2E2U06DCK | Package_TO_SOT_SMD:SOT-323_SC-70 | U4, U5 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R37 |
| 1 | 100nF | Capacitor_SMD:C_1206_3216Metric | C28 |
| 1 | 100u | Inductor_SMD:L_7.3x7.3_H4.5 | L1 |
| 1 | 10R | Package_TO_SOT_THT:TO-247-2_Vertical | R21 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R36 |
| 1 | 120 | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 12K | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 12MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | 13.3k | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 150nF | Capacitor_SMD:C_1206_3216Metric | C27 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R24 |
| 1 | 1N4148W-7-F | Diode_SMD:D_SOD-123 | D3 |
| 1 | 1n | Capacitor_SMD:C_0603_1608Metric | C36 |
| 1 | 240k | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 25k5 | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 2u2 | Capacitor_SMD:C_0603_1608Metric | C38 |
| 1 | 300k | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 33 | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | 470n | Capacitor_SMD:C_0603_1608Metric | C41 |
| 1 | 470u | Capacitor_SMD:CP_Elec_18x17.5 | C32 |
| 1 | 47n | Capacitor_SMD:C_0603_1608Metric | C31 |
| 1 | 4m | Resistor_SMD:R_2512_6332Metric | R14 |
| 1 | 4u7 | Capacitor_SMD:C_1206_3216Metric | C40 |
| 1 | 5.0SMDJ60A | Diode_SMD:D_SMC | D4 |
| 1 | 6.34k | Resistor_SMD:R_0603_1608Metric | R28 |
| 1 | 6.65k | Resistor_SMD:R_0603_1608Metric | R25 |
| 1 | 6k49 | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 82p | Capacitor_SMD:C_0603_1608Metric | C46 |
| 1 | 91k | Resistor_SMD:R_0603_1608Metric | R29 |
| 1 | 93LCxxB | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | ADM2682E | Package_SO:SOIC-16W_7.5x12.8mm_P1.27mm | U3 |
| 1 | B380-13-F | Diode_SMD:D_SMC | D5 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J5 |
| 1 | DEBUG | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J9 |
| 1 | ESTOP | Connector_Molex:Molex_Nano-Fit_105313-xx02_1x02_P2.50mm_Horizontal | J3 |
| 1 | FAN | Connector_Molex:Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J7 |
| 1 | FAN3111E | Package_TO_SOT_SMD:SOT-23-5 | U9 |
| 1 | FT232H | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J10 |
| 1 | LM46000 | BLDC:PWP0016G | U8 |
| 1 | LM5066 | TI:Texas_PWP0028A | U6 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | MMBT5401LT1G | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | NTS4001NT1G | Package_TO_SOT_SMD:SOT-323_SC-70 | Q7 |
| 1 | PWR | BLDC:molex-0436500213 | J4 |
| 1 | STM32L071KZT6 | Package_QFP:LQFP-32_7x7mm_P0.8mm | U7 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Wuerth_629105150521_CircularHoles | J2 |
| 1 | arm connector | BLDC:molex-436500511 | J1 |
| 1 | logic-side RS485 debug/expansion | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | power-side RS485 debug/expansion | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J8 |
Questions
How big is the Blue interface board PCB?
It measures 70 × 70 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Blue interface board use?
130 parts, built around the STM32L071KZT6, LMZ21700SILR, ADM2682EBRIZ and FAN3111ESX. 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 Blue interface board KiCad files?
From the BetzDrive/interface-board repository on GitHub, at the commit this page was made from: the board is hardware/blue_interface_board.kicad_pcb and its schematic hardware/Comms.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Blue interface board design in my own project?
Its repository states no licence, so its author keeps all rights: ask BetzDrive before reusing the design.
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