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PDB

Malcollm·PDB

PDB PCB layout, top view — open source board by Malcollm

About the PDB PCB

PDB is an open source PCB design by Malcollm, published on GitHub. It is a 6-layer board measuring 168.6 × 234.8 mm, with 170 components from 73 distinct parts.

Other key parts include the TLV3011AIDBVT, LM5148RGYR, LMR36015ARNXR, ACS758LCB-100U-PFF-T and UCC27511DBVR. By type, the board carries 14 ICs, 13 connectors, 10 diodes, 8 fuses, 7 transistors and 3 inductors.

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

From the project

Power distribution board pcb

This repository contains the power distribution board design for the Wiscohumanoids humanoid robot. The board distributes the main battery power to the robot’s high-current actuator system and generates regulated lower-voltage rails for compute, servos, sensors, and control electronics.

The PDB is designed around a 48 V main power system with onboard regulation for the robot’s auxiliary electronics.

Main components on the PDB

TLV3011AIDBVTLM5148RGYRLMR36015ARNXRACS758LCB-100U-PFF-TUCC27511DBVRMCP1401T-E/OT

PDB bill of materials (BOM)

170 components, 73 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TLV3011AIDBVT
U1
1
LM5148RGYR
U2
1
LMR36015ARNXR
U3
7
ACS758LCB-100U-PFF-T
U4, U5, U8, U9, U10, U11, U12
1
UCC27511DBVR
U6
1
LM5148RGYR
U7
2
MCP1401T-E/OT
U13, U14
2
NMOS IRFR220N
Q2, Q3
5
NMOS
Q4, Q5, Q6, Q7, Q8
1
Rockchip ESTOP feedback
J2
1
3.3V Out
J4
1
24V Out -> Jetson
J5
1
24V Out -> USB-C-PD controller
J6
4
CONN_01X02_MOUNTINGPIN
Conn_01x02_MountingPin
J7, J8, J9, J10
1
6V Out
J12
1
BCurrent_Disconnect
J18
1
ESTOP Contactor Coil Control
J20
1
ESTOP Button (Normally Closed)
J21
1
Rockchip FET Control
J23
6
470U
470u
CBLK3, CBLK4, CBLK5, CBLK6, CBLK7, CBLK8
Show 53 more
QtyPartRefs
3
100UF
100uF
CBLKA1, CBLKA2, CBULK2
2
47UF
47uF
CBLKA3, CBLKA4
12
100N
100n
CBOOT1, CBOOT3, CCS1, CCS2, CCS3, CCS4, CCS5, CCS6 +4
1
100NF
100nF
CBOOT2
1
6.8NF
6.8nF
CCOMP1
1
6.8NF
4.7nF
CCOMP2
1
100n
CCS9
1
100uF 50V
CCS10
2
100nF 50V
CCS11, CCS12
7
10N
10n
CCSF1, CCSF2, CCSF4, CCSF5, CCSF6, CCSF7, CCSF8
1
20PF
20pF
CFF1
2
100PF
100pF
CHF1, CHF2
2
220nF
CHF4A1, CIN3A1
2
47uF
CIN1A1, CIN1B1
1
100uF
CIN1B2
1
4.7uF
CIN2A1
6
4.7u
CIN2B1, CIN2B2, CIN3B1, CIN3B2, CIN4B1, CIN4B2
4
100nF
CIN5A1, CIN5B1, CIN5B2, COUT4B2
8
4.7U
4.7u
CINC1, CINC2, CINC3, CINC4, CINC5, CINC6, CINC7, CINC8
4
100NF
100nF
CINC9, CINC10, CINC11, CINC12
2
47uF
COUT1A1, COUT2A1
6
22uF
COUT1B1, COUT1B2, COUT2B1, COUT2B2, COUT3B1, COUT3B2
2
100nF
COUT3A1, COUT4B1
2
2.2U
2.2u
CVCC1, CVCC2
1
1UF
1uF
CVCCA1
1
Fuse
F1
6
~
F2, F3, F4, F5, F6, F7
1
Fuse
F8
1
4.75K
4.75k
RCOMP1
1
4.75K
6.49k
RCOMP2
2
41.2K
41.2k
RCON1, RCON2
7
1k
RCSF1, RCSF2, RCSF4, RCSF5, RCSF6, RCSF7, RCSF8
1
1M
RDIV1
1
24.9K
24.9k
RDIV2
1
43.2K
43.2k
RENB1
1
100K
100k
RENT1
2
10
RESTP1, RESTP2
4
10K
RESTP3, RESTP4, RFB2B1, RFB2B2
2
TBD R
RESTP5, RESTP6
1
4.7K 1W
RESTP7
2
4.7R
RFB1, RFB2
1
64.9k
RFB1A1
1
291k
RFB1A2
1
1.65M
RFBC1
2
0.002R
RSEN1, RSEN2
2
47K
47k
RSF1, RSF2
8
TVS
D1, D2, D3, D4, D5, D6, D7, D8
1
12V Zener 1W
D9
1
TVS 93.6V max clamp
D10
1
18UH
18uH
L1
1
10UH
10uH
L2
1
4.7UH
4.7uH
L3
1
80R
R
RPRE1

PDB design files

The KiCad project lives in the Malcollm/PDB repository on GitHub; these links point at the commit this page was built from.

PDB: common questions

How big is the PDB PCB?

The PDB measures 168.6 × 234.8 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the PDB?

170 components, from 73 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 PDB design files?

From the Malcollm/PDB repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the PDB design in my own project?

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

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