Difference between revisions of "Dtech DT-9011 RS-232 Isolator"
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| + | [[File:Dtech_DT-9011_Stock_Photo.jpg|thumb|Dtech DT-9011]] | ||
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== Overview == | == Overview == | ||
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| U1-U2 | | U1-U2 | ||
| SOIC-8 | | SOIC-8 | ||
| − | | | + | | MicroOne ME7660C 1940 |
|- | |- | ||
| U3-U6 | | U3-U6 | ||
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| [https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/TLP185-GR-TPR-E/TLP185-GR-TPRE-CT-ND/3025457 Toshiba TLP185(GR-TPR,E)] | | [https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/TLP185-GR-TPR-E/TLP185-GR-TPRE-CT-ND/3025457 Toshiba TLP185(GR-TPR,E)] | ||
|} | |} | ||
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| + | U1 and U2 have their markings partially ground off. The ME7660C is functionally equivalent to LMC7660/ICL7660/TC7660/TL7660 charge pumps. | ||
| + | |||
| + | [https://cdn.datasheetspdf.com/pdf-down/M/E/7/ME7660C-MicroOne.pdf MicroOne ME7660C Datasheet] | ||
The board has edge soldered connectors similar to these: | The board has edge soldered connectors similar to these: | ||
| Line 56: | Line 62: | ||
[http://www.imaginart.es/audiovisuales/dtech/pdf/Catalogo_Dtech_conversores_industriales.pdf Dtech Industrial Converter Catalog] | [http://www.imaginart.es/audiovisuales/dtech/pdf/Catalogo_Dtech_conversores_industriales.pdf Dtech Industrial Converter Catalog] | ||
| + | |||
| + | [http://ww1.microchip.com/downloads/en/AppNotes/00782a.pdf Microchip AN782 TC7660 Powers RS-232 Data Loop Low Cost Adapter (DS00782A)] (possibly relevant application note) | ||
Latest revision as of 00:32, 21 May 2020
Overview
Chinese bus powered ("passive") RS-232 isolator.
Bill of Materials
| Name | Package | Marking | Description | Link |
|---|---|---|---|---|
| R1-R2 | 122 | 0805 | 1.2kΩ resistor | |
| C1-C6 | 3528 ("B") | 106C 504F2 | 10μF tantalum | |
| Q1-Q2, Q4, Q6-Q8 | SOT-23 | LD3 v | BAT54 Schottky diode maybe? | |
| Q3, Q5 | SOT-23 | LD3 6 | BAT54 Schottky diode maybe? | |
| U1-U2 | SOIC-8 | MicroOne ME7660C 1940 | ||
| U3-U6 | SO-6 (4 leads) | [Toshiba Logo] 747 P185 GR J0 | Toshiba TLP185 | Toshiba TLP185(GR-TPR,E) |
U1 and U2 have their markings partially ground off. The ME7660C is functionally equivalent to LMC7660/ICL7660/TC7660/TL7660 charge pumps.
The board has edge soldered connectors similar to these:
Online Resources
DTECH DT-9011 Passive RS232 Photoelectric Isolation Protector,Industrial Ethernet Serial Converter
HDMI Matrix,DVI Splitter,Guangzhou Dtech Electronics Technology Co.,Ltd.
Dtech Industrial Converter Catalog
Microchip AN782 TC7660 Powers RS-232 Data Loop Low Cost Adapter (DS00782A) (possibly relevant application note)