PowerBoardV4

UofSSpaceTeam·rover-hardware·Projects/Power Distribution/PowerBoardV4/PowerBoardV4.kicad_pcb

About the PowerBoardV4 PCB

PowerBoardV4 is an open source Microchip SAM PCB design by UofSSpaceTeam, published on GitHub. It is a 2-layer board measuring 183.1 × 108 mm, with 74 components from 36 distinct parts.

Its main chip is the SAMD21, from the Microchip SAM family. Other key parts include the bq76930. By type, the board carries 23 capacitors, 20 resistors, 16 connectors, 7 transistors, 3 diodes and 2 ICs.

From the project

Hardware design files for the Rover project.

Main components on the PowerBoardV4

bq76930 SAMD21

PowerBoardV4 bill of materials (BOM)

74 components, 36 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	bq76930	30-TSSOP	U2
1	SAMD21	TQFP-48_7x7mm_Pitch0.5mm	U3
2	IRF3205	TO-220AB	Q1, Q2
1	BSS84	SOT-23	Q3
4	BSS138	SOT-23	Q4, Q5, Q6, Q7
1	Cell Voltage Sense	Molex_MiniFit-JR-5556-08A_2x04x4.20mm_Straight	J1
1	BATT_PWR	Phoenix_Contact_1770539	J2
1	12V 60W PWR Supp	Recom-12V60W-RPA60-FW	J3
1	5V POWER SUPPLY	SIP12_R-7xxx	J4
1	BACK_EXT_24V	Phoenix_Contact_1770539	J5
3	5V-Extra	Molex_39531_1002	J6, J11, J12
1	MC_STACK_1	TerminalBlock_Pheonix_PT-5mm_6pol	J7
1	MC_STACK_2	TerminalBlock_Pheonix_PT-5mm_6pol	J8
1	24V_INT_PWR_BLK	TerminalBlock_Pheonix_PT-5mm_6pol	J9
1	5V_INT_PWR_BLK	TerminalBlock_Pheonix_PT-3.5mm_6pol	J10
1	12V_INT_PWR_BLK	TerminalBlock_Pheonix_PT-3.5mm_6pol	J14
2	12V-Extra	Molex_39531_1002	J15, J16
1	USB_OTG	USB_Micro_B_Female_10118194-0001LF	J18
2	10k	R_0603	TH1, TH2
1	D_Small_ALT	D_0603	D1

Show 16 more

Qty	Part	Footprint	Refs
2	D_Small	D_0603	D3, D4
1	4.8 uH	C_Radial_D10_L13_P5	L1
1	100uF	C_Radial_D8_L11.5_P3.5	C1
1	10uF	C_Radial_D5_L11_P2.5	C2
1	6.8uF	R_1210	C3
1	6.8 nF	R_1812	C4
13	1 uF	C_1812	C26, C28, C29, C30, C31, C32, C33, C34 +5
1	4.7 uF	C_1210	C27
3	0.1uF	C_0603	C39, C40, C41
2	10 uF	C_Radial_D5_L11_P2.5	C42, C43
3	1M	R_0603	R1, R2, R4
1	2k	R_0603	R5
1	10k	R_0603	R6
10	1k	R_0603	R7, R8, R9, R10, R11, R12, R13, R14 +2
4	100	R_0603	R17, R19, R20, R21
1	5m	TO-220AB-2-Resistor	R18

PowerBoardV4 design files

The KiCad project lives in the UofSSpaceTeam/rover-hardware repository on GitHub; these links point at the commit this page was built from.

PowerBoardV4: common questions

What microcontroller does the PowerBoardV4 use?

The PowerBoardV4 is built around the SAMD21, from the Microchip SAM family.

How big is the PowerBoardV4 PCB?

The PowerBoardV4 measures 183.1 × 108 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PowerBoardV4?

74 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the PowerBoardV4 design files?

From the UofSSpaceTeam/rover-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the PowerBoardV4 design in my own project?

The repository has no license, so all rights stay with UofSSpaceTeam. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the PowerBoardV4 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.