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STD Isolated USB-TTL Converter
Isolated USB-TTL Converter
License
GPL 3.0
License: GPL 3.0Mode:
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Update time：
2019-04-08 08:20:56
Creation time：
2018-09-27 18:57:58
Description
Description
A FTDI breakout (based around a CH340) with galvanic isolation between the MCU and computer sides with an ADuM1401. It features:
- Galvanic isolation (2.5kV RMS for 1 minute)
- Cheap CH340 chip
- USB C for computer connection
- Stranded FTDI breakout pinout (can be used as programmer)
- Can be made on single sided board at home (with 2 jumpers)
- USB input protection (polyfuse)
- Small 43.6x15.2mm
- Bypass caps to help keep power lines stable
Design Drawing
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity | Mounted | |
|---|---|---|---|---|---|---|
| 1 | 1206L075THYR | F2 | 1206 | 1 | Yes | C99563 |
| 2 | 100n | C7,C8,C6,C9,C10 | 0402 | 5 | Yes | |
| 3 | CH340C | U1 | SOP-16_150MIL | 1 | Yes | C84681 |
| 4 | 1k | R8 | 0603 | 1 | Yes | |
| 5 | ADUM1401BRWZ | U4 | SOIC-16_300MIL | 1 | Yes | C91762 |
| 6 | USB-C | USB2 | MICRO-USB-9 | 1 | Yes | C21377 |
| 7 | POW | POW | 0603-LED | 1 | Yes | C99772 |
| 8 | 220R | R9 | 0603 | 1 | Yes | C163392 |
| 9 | PROG | P1 | 1X6 SMT PKG | 1 | Yes | C37208 |
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