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Mppt-4820-hc

intrinsicaly·mppt-4820-hc·kicad/mppt-4820-hc.kicad_pcb

Mppt-4820-hc PCB layout, top view — open source STM32 board by intrinsicaly

About the Mppt-4820-hc PCB

Mppt-4820-hc is an open source STM32 PCB design by intrinsicaly, published on GitHub under the CERN-OHL-W-2.0 license. It is a board measuring 100 × 100 mm, with 140 components from 61 distinct parts.

Its main chip is the STM32G431CBTX, from the STM32 family. Other key parts include the UCC27712, INA186, LMR16030X, W25Q80DVS and TCAN334. By type, the board carries 46 resistors, 43 capacitors, 12 diodes, 8 connectors, 7 ICs and 6 transformers.

It belongs with the power & battery designs in this gallery.

From the project

MPPT charge controller with HS load switch and CAN bus

Bill of Materials: CSV file.csv) or interactive HTML BOM

Firmware repository: LibreSolar/charge-controller-firmware

This charge controller design is the replacement for the MPPT 2420 LC. We are also working on an integration of MPPT control algorithms for wind turbines.

- Solar input terminal - 15V to 140V operating range - 140V maximum open-circuit input - Battery output terminal - 24V / 48V systems - Up to 42A @ 24V mode, up to 21A @ 48V mode - Up to 1kW output power - Load terminal: 20A - New STM32G431 ARM MCU with advanced digital power conversion features - Expandable via Olimex…

Mppt-4820-hc, from the project README
From the project README

Main components on the Mppt-4820-hc

UCC27712STM32G431CBTXINA186LMR16030XW25Q80DVSTCAN334

Mppt-4820-hc bill of materials (BOM)

140 components, 61 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
UCC27712
LM5107
Texas Instruments
U1
1
STM32G431CBTX
STM32G431CBTx
ST Microelectronics
U2
2
INA186
Texas Instruments
U3, U5
1
LMR16030X
LMR16006X
Texas Instruments
U4
1
W25Q80DVS
Winbond
U6
1
TCAN334
Texas Instruments
U7
4
IPA045N10N3G
Mixed
Q1, Q2, Q3, Q7
1
BUK98180-100A
Nexperia
Q4
1
8MHZ
8MHz
Murata
Y1
3
MKDS 5/ 2-9,5
Phoenix Contact
J1, J2, J3
2
8P8C
Amphenol FCI
J4, J5
1
JST PH
JST
J6
1
UEXT
any
J7
1
CONN_01X02
any
P1
2
500MA
500mA
Bel Fuse
F2, F3
1
Jumper_NC_Small
JP1
1
10K
10k
TDK
RT1
1
82V
Bourns
RV2
1
ST_Nucleo_SWD
any
SWD1
5
BC846B
ON Semiconductor
T1, T2, T3, T5, T10
Show 41 more
QtyPartRefs
1
BC856B
ON Semiconductor
T4
1
Fuse_Holder
Keystone
XF1
2
LED_DUAL_PLCC4
LED_Dual_PLCC4
Lite-On
LED1, LED2
1
SS16FP
Diodes Inc.
D1
2
NRVTS260ESFT1G
On Semiconductor
D2, D6
2
12V
ON Semiconductor
D3, D5
1
BAS70-04
ON Semiconductor
D4
3
SS14FL
ON Semiconductor
D7, D14, D15
1
47V
ON Semiconductor
D9
2
1N4148
Diodes Inc.
D10, D16
1
53µH
Würth Elektronik
L1
1
4.7µH
Murata
L2
1
47µH
Tayo Yuden
L3
2
390µF
United Chemi-Con
C1, C2
2
1µF
any
C3, C18
1
100NF
100nF
any
C4
2
680µF
Panasonic
C5, C27
1
2.2NF
2.2nF
any
C6
13
100NF
100nF
any
C7, C9, C10, C13, C20, C22, C24, C28 +5
9
10NF
10nF
any
C8, C14, C16, C17, C25, C26, C34, C37 +1
2
1NF
1nF
any
C11, C15
4
2.2µF
any
C12, C33, C39, C49
1
4.7µF
Murata
C19
2
10µF
Murata
C21, C23
1
1µF
Yageo
C40
1
4.7µF
Wurth Electronics
C41
2
0.22µF
EPCOS / TDK
C42, C44
4
3R3
Yageo
R1, R2, R3, R5
2
4R7
Yageo
R4, R12
2
2m
Bourns
R6, R62
7
10K
10k
any
R7, R16, R19, R24, R49, R59, R64
2
10R
any
R8, R9
5
1k
any
R10, R25, R26, R29, R66
1
120R
any
R11
7
100K
100k
any
R13, R17, R22, R30, R58, R60, R65
6
2.2K
2.2k
any
R14, R20, R21, R31, R44, R57
3
1M
any
R15, R56, R61
1
5.6K
5.6k
any
R18
1
33K
33k
any
R23
4
47R
any
R27, R28, R32, R40
1
8.2K
8.2k
any
R50

Mppt-4820-hc design files

The KiCad project lives in the intrinsicaly/mppt-4820-hc repository on GitHub; these links point at the commit this page was built from.

Mppt-4820-hc: common questions

What microcontroller does the Mppt-4820-hc use?

The Mppt-4820-hc is built around the STM32G431CBTX, from the STM32 family.

How big is the Mppt-4820-hc PCB?

The Mppt-4820-hc measures 100 × 100 mm and is 1.6 mm thick.

How many components are on the Mppt-4820-hc?

140 components, from 61 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 Mppt-4820-hc design files?

From the intrinsicaly/mppt-4820-hc repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Mppt-4820-hc design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which intrinsicaly chose for the repository.

Can I test firmware for the Mppt-4820-hc without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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