GPU cluster backplane

Compute Cluster Backplane board allowing for connection up to 8 Thunderbolt GPU adapters. PCB is compatible with Dell D1599E-S0 PSU.

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Manufacturer	Manufacturer part number	Description
Diodes Incorporated	AP62301WU-7	DC-DC Switching Synchronous Buck Regulator, Adjustable, 4.2V-18Vin, 0.8V-7V/3A out, TSOT-26-6
Texas Instruments	TMCS1100A2QDRQ1	Hall current Sensor/transducer
Texas Instruments	LM339PW	Analogue Comparator, Differential, 4 Comparators, 300 ns, 2V to 36V, TSSOP, 14 Pins
Analog Devices	MAX6643LBBAEE+	PWM Controller, Overtemperature Output, 3V to 5.5V Supply, 32Hz, QSOP-16
Texas Instruments	TS5A3359DCUR	Interface analog switch/multiplexer/demultiplexer
Texas Instruments	TCA9534PWR	Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander with Interrupt Output and Configuration Registers
Silicon Labs	Si7021-A20-GM1R	Humidity/Temperature Sensor, 0% to 100% RH/-40°C to 85°C Range, I2C, Digital, 1.9V to 3.6V, DFN-6
Texas Instruments	ADS7828E/250	8 channel12-bit ADC with I2C, 2V7-5V
Diodes Incorporated	AP7370-33SA-7	Voltage regulator
STMicroelectronics	STM32G474CET6	ARM MCU, STM32 Family STM32G4 Series Microcontrollers, ARM Cortex-M4F, 32 bit, 170 MHz, 512 KB
Sensirion	SHT45-AD1B-R2	Sensor
Bosch	BME280	Sensor
Texas Instruments	SN74LV1T125DBVR	Buffer, 74LV1T125, 1.6 V to 5.5 V, SOT-23-5
TE Connectivity	1-2212115-4	Card Edge Power Connectors, Board-to-Board, 10 Position, 7.26mm
JST Automotive Connectors	B2B-XH-A(LF)(SN)	Rectangular connector, header
Molex	22-23-2041	Rectangular connector (header, female pins)
Amphenol	10107844-002LF	60 (24 + 36 Power) Position Edge Card Connector
GCT	USB4145-03-0070-C	USB-C (USB TYPE-C) USB 2.0 Receptacle Connector 24 (16+8 Dummy) Postion Surface Mount, Vertical
JST Automotive Connectors	SM04B-SRSS-TB(LF)(SN)	Pin Header, Right Angle, Wire-to-Board, 1 mm, 1 Rows, 4 Contacts, Surface Mount Right Angle, SH
JST Automotive Connectors	BM02B-SRSS-TB(LF)(SN)	Pin Header, Top Entry, Wire-to-Board, 1 mm, 1 Rows, 2 Contacts, Surface Mount, SR
OSRAM	LG L29K-G2J1-24-Z	LED, Green, SMD, 0603, 20 mA, 1.7 V, 570 nm
Nexperia	PESD5V0S2BQA	TVS diode array, 30 kV, SOT-1215, 5V, 45 pF
Diodes Incorporated	BZT52C15-7-F	Zener Single Diode, AEC-Q101, 15 V, 500 mW, SOD-123, 2 Pins, 150 °C, Surface Mount
Onsemi	ESD5B5.0ST1G	Bidirectional TVS, 30 kV, SOD-523, 5 V, 32 pF
Diodes Incorporated	1N4148WS-7-F	Fast Switching Diode, Single, 75 V, 300 mA, 1.25 V, 4 ns, 2 A
Onsemi	ESD9X5.0ST5G	Unidirectional TVS, 30 kV, SOD-923, 5 V, 65 pF
Texas Instruments	TPD2E009DRTR	TVS diode array, 8 kV, SOT-723, 5.5 V, 0.9 pF
STMicroelectronics	ESDA25P35-1U1M	Unidirectional TVS, 30 kV, QFN-2L, 22 V, 195 pF
Kingbright	KP-1608ZGC	LED, Green, SMD, 0603, 20 mA, 3.3 V, 525 nm
Nexperia	BSS138PW	Power MOSFET, N Channel, 60 V, 320 mA, 0.9 ohm, SOT-323, Surface Mount
Vishay	SI7613DN-T1-GE3	Power MOSFET, P Channel, 20 V, 35 A, 0.0072 ohm, PowerPAK 1212, Surface Mount
Onsemi	SBC807-40WT1G	Bipolar (BJT) Single Transistor, PNP, 45 V, 500 mA, 460 mW, SC-70, Surface Mount
Abracon	ABM8G-12.000MHZ-18-D2Y-T	Crystal, 12 MHz, SMT, 3.2mm x 2.5mm, 30 ppm, 18 pF, 20 ppm, ABM8G
Abracon	ABM3B-12.000MHZ-B2-T	Crystal, 12 MHz, SMT, 5mm x 3.2mm, 50 ppm, 18 pF, 20 ppm, ABM3B
Abracon	ABM3B-8.000MHZ-10-1-U-T	Crystal, 8 MHz, SMT, 5mm x 3.2mm, 10 ppm, 10 pF, 10 ppm
TDK	C1608X5R1E106M080AC	SMD Multilayer Ceramic Capacitor, 10 µF, 25 V, 0603 [1608 Metric], ± 20%, X5R, C
Murata	GRM155R61A475MEAAD	SMD Multilayer Ceramic Capacitor, 4.7 µF, 10 V, 0402 [1005 Metric], ± 20%, X5R, GRM Series
Samsung Electro-Mechanics	CL05C180JB51PNC	SMD Multilayer Ceramic Capacitor, 18 pF, 50 V, 0402 [1005 Metric], ± 5%, C0G / NP0, MC
Murata	GRM155R61H104KE14D	SMD Multilayer Ceramic Capacitor, 0.1 µF, 50 V, 0402 [1005 Metric], ± 10%, X5R, GRM Series
Samsung Electro-Mechanics	CL10A226MO7JZNC	SMD Multilayer Ceramic Capacitor
Murata	GRM188C81C106MA73D	SMD Multilayer Ceramic Capacitor, 10 µF, 16 V, 0603 [1608 Metric], ± 20%, X6S, GRM Series
KEMET	C0402C105M4PACTU	SMD Multilayer Ceramic Capacitor, 1 µF, 16 V, 0402 [1005 Metric], ± 20%, X5R, C Series KEMET
TDK	C1005X5R1A225K050BC	SMD Multilayer Ceramic Capacitor, 2.2 µF, 10 V, 0402 [1005 Metric], ± 10%, X5R, C
Walsin	0402N160J500CT	SMD Multilayer Ceramic Capacitor, General Purpose, 16 pF, 50 V, 0402 [1005 Metric], ± 5%, C0G / NP0
Murata	GCM1555C1H100GA16D	SMD Multilayer Ceramic Capacitor, 10 pF, 50 V, 0402 [1005 Metric], ± 2%, C0G / NP0, GCM
Murata	BLM18AG601SN1D	Ferrite Bead, 0603 [1608 Metric], 600 ohm, 500 mA, BLM18A, 0.38 ohm, ± 25%, General use
Murata	BLM21SN300SZ1D	Ferrite Bead, 0805 [2012 Metric], 30 ohm, 8.5 A, BLM21SN, 0.004 ohm, ± 10ohm, DC power line
Murata	BLM18SG121TN1D	Ferrite Bead, 0603 [1608 Metric], 120 ohm, 3 A, BLM18S, 0.025 ohm, ± 25%, DC power line (thin type)
Murata	BLM18PG121SN1D	Ferrite Bead, 0603 [1608 Metric], 120 ohm, 2 A, BLM18P, 0.05 ohm, ± 25%, DC power line
Würth Elektronik	74437336033	Power Inductor (SMT), 3.3 µH, 4.1 A, Shielded, 8.4 A, WE-LHMI
Bourns	CR0402-FX-3300GLF	SMD Chip Resistor, 330 ohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-5101GLF	SMD Chip Resistor, 5.1 kohm, ± 1%, 63 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-1002GLF	SMD Chip Resistor, 10 kohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-1001GLF	SMD Chip Resistor, 1 kohm, ± 1%, 63 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-1072GLF	SMD Chip Resistor
Bourns	CR0402-FX-2001GLF	SMD Chip Resistor, 2 kohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-1202GLF	SMD Chip Resistor, 12 kohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Panasonic	ERJ2GE0R00X	SMD Chip Resistor, Jumper, 0 ohm, 100 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-4701GLF	SMD Chip Resistor, 4.7 kohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-2R00GLF	SMD Chip Resistor
Bourns	CR0402-FX-1003GLF	SMD Chip Resistor, 100 kohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Panasonic	ERA-2ARB153X	SMD Chip Resistor, 15 kohm, ± 0.1%, 62.5 mW, 0402 [1005 Metric], Metal Film (Thin Film)
Bourns	CR0402-FX-5102GLF	SMD Chip Resistor, 51 kohm, ± 1%, 63 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-5103GLF	SMD Chip Resistor, 510 kohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Vishay	CRCW08050000Z0EA	Zero Ohm Resistor, Jumper, 0805 [2012 Metric], Thick Film, 125 mW, 2.5 A, Surface Mount Device
Bourns	CR0402-FX-6800GLF	SMD Chip Resistor, 680 ohm, ± 1%, 63 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-4700GLF	SMD Chip Resistor, 470 ohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-1000GLF	SMD Chip Resistor, 100 ohm, ± 1%, 62.5 mW, 0402 [1005 Metric], Thick Film, General Purpose
Bourns	CR0402-FX-6341GLF	SMD Chip Resistor, 6.34 kohm, ± 1%, 100 mW, 0402 [1005 Metric], Thick Film, Precision
Würth Elektronik	9774100151R	Spacer, SMT, Steel, Threaded, Swage Round, Tin plated, M2.5, WA-SMSI Series

Name	Type	Material	Thickness[mm]	Constant
F.Mask	Top Solder Mask		0.01
F.Cu	copper		0.035
dielectric 1	core	FR4	0.48	4.5
In1.Cu	copper		0.035
dielectric 2	prepreg	FR4	0.48	4.5
In2.Cu	copper		0.035
dielectric 3	core	FR4	0.48	4.5
B.Cu	copper		0.035
B.Mask	Bottom Solder Mask		0.01

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GPU cluster backplane