Isolator
About the Isolator PCB
Isolator is an open source PCB design by SG-O, published on GitHub under the MIT license. It is a 2-layer board measuring 33 × 67.3 mm, with 35 components from 12 distinct parts.
Other key parts include the ISO6741 and ISO6721. By type, the board carries 14 resistors, 12 capacitors, 6 connectors and 3 ICs.
From the project
Tripple Isolator for two Step/Dir/En and one UART signal
This was designed to be used with the ODrive motor controller. It may be useful for other things though.
You can find the manufacturing documentation here.
Main components on the Isolator
Isolator bill of materials (BOM)
35 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ISO6741 | SOIC-16W_7.5x10.3mm_P1.27mm | U1, U2 |
| 1 | ISO6721 | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | Step_0_In | PinSocket_1x06_P2.54mm_Vertical | J1 |
| 1 | Step_0_Out | PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | Step_1_In | PinSocket_1x06_P2.54mm_Vertical | J3 |
| 1 | Step_1_Out | PinSocket_1x06_P2.54mm_Vertical | J4 |
| 1 | UART_In | PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | UART_Out | PinSocket_1x04_P2.54mm_Vertical | J6 |
| 6 | 10u | R_1206_3216Metric | C1, C4, C5, C8, C9, C12 |
| 6 | 100n | C_0603_1608Metric | C2, C3, C6, C7, C10, C11 |
| 4 | 4.7k | R_0603_1608Metric | R1, R2, R7, R8 |
| 10 | 0R | R_0603_1608Metric | R3, R4, R5, R6, R9, R10, R11, R12 +2 |
Isolator design files
The KiCad project lives in the SG-O/Isolator repository on GitHub; these links point at the commit this page was built from.
- LayoutIsolator.kicad_pcb
Isolator: common questions
How big is the Isolator PCB?
The Isolator measures 33 × 67.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Isolator?
35 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Isolator design files?
From the SG-O/Isolator repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Isolator design in my own project?
Yes, under the terms of its MIT license, which SG-O chose for the repository.
