HardLabs

Backplane

mikesmitty·power-manifold·hardware/backplane/backplane.kicad_pcb

Backplane PCB layout, top view — open source board by mikesmitty

About the Backplane PCB

Backplane is an open source PCB design by mikesmitty, published on GitHub. It is a 4-layer board measuring 192 × 31.5 mm, with 83 components from 42 distinct parts.

Other key parts include the AP64352SP-13, LM74800QDRRRQ1, TCA9548APWR, TCA9539PWR and TPS16416DRCR. By type, the board carries 31 capacitors, 29 resistors, 9 connectors, 5 ICs, 3 transistors and 3 diodes.

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

From the project

Six-port USB-C power supply: up to 100 W per port from one 24 V supply, with per-port control, priority-based power sharing and Home Assistant support.

A six-port USB-C power supply: up to 100 W per port from one 24 V supply, with per-port control, priority-based power sharing and Home Assistant support. This repository holds the hardware (KiCad), the firmware and the documentation site.

- First-time setup - User guide - Integrations: MQTT, Home Assistant and the HTTP API - Hardware architecture - Building the controller firmware and the charger blade firmware

Backplane, from the project README
From the project README

Main components on the Backplane

AP64352SP-13LM74800QDRRRQ1TCA9548APWRTCA9539PWRTPS16416DRCR

Backplane bill of materials (BOM)

83 components, 42 distinct parts.

QtyPartRefs
1
AP64352SP-13
U1
1
LM74800QDRRRQ1
U2
1
TCA9548APWR
U3
1
TCA9539PWR
U4
1
TPS16416DRCR
TI(德州仪器)
U5
1
FAN1
M1
2
BSC014N06NS
Q1, Q2
1
AO3400A
Q3
1
PWR
J1
7
Bus_PCI_Express_x1
J2, J3, J4, J5, J6, J7, J8
1
STATUS_LED
J9
1
40A
F1
1
SMCJ33CA
D1
1
LED
D2
1
SS34
D3
1
5.6uH
L1
1
10uF
C1
1
1uF
C2
9
100nF
C3, C5, C6, C16, C17, C23, C24, C29 +1
2
10nF
C4, C20
Show 22 more
QtyPartRefs
2
22uF
C7, C9
1
1uF
C8
2
100nF
C10, C37
1
220nF
C11
6
100uF
C12, C13, C18, C19, C25, C26
6
4.7uF
C14, C15, C21, C22, C27, C28
2
220R
R1, R13
2
100K
R2, R15
1
7.5K
R3
2
100K
R4, R7
1
3.74K
R5
1
200K
R6
1
6.81K
R8
8
10K
R9, R10, R18, R19, R22, R23, R24, R25
1
115K
R11
1
22.1K
R12
1
1K
R14
1
1M
R16
1
120K
R17
1
20.5K
R20
1
24.9K
R21
4
330R
RN4, RN5, RN6, RN7

Backplane design files

The KiCad project lives in the mikesmitty/power-manifold repository on GitHub; these links point at the commit this page was built from.

Backplane: common questions

How big is the Backplane PCB?

The Backplane measures 192 × 31.5 mm, has 4 copper layers and is 1.6762 mm thick.

How many components are on the Backplane?

83 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the Backplane design files?

From the mikesmitty/power-manifold repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Backplane design in my own project?

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

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