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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! Description
 
! Description
 
! Link
 
! Link
 +
|-
 +
| R1-R2
 +
| 122
 +
| 0805
 +
| 1.2kΩ resistor
 
|-
 
|-
 
| C1-C6
 
| C1-C6
 
| 3528 ("B")
 
| 3528 ("B")
 
| 106C 504F2
 
| 106C 504F2
| 10uF tantalum
+
| 10μF tantalum
 
|-
 
|-
 
| Q1-Q2, Q4, Q6-Q8
 
| Q1-Q2, Q4, Q6-Q8
 
| SOT-23
 
| SOT-23
 
| LD3 v
 
| LD3 v
 +
| BAT54 Schottky diode maybe?
 
|-
 
|-
 
| Q3, Q5
 
| Q3, Q5
 
| SOT-23
 
| SOT-23
 
| LD3 6
 
| LD3 6
 +
| BAT54 Schottky diode maybe?
 
|-
 
|-
 
| U1-U2
 
| U1-U2
 
| SOIC-8
 
| SOIC-8
| M?r?ne MB??660C  1940
+
| MicroOne ME7660C 1940
 
|-
 
|-
| U4-U5
+
| U3-U6
 
| SO-6 (4 leads)
 
| SO-6 (4 leads)
 
| [Toshiba Logo] 747 P185 GR J0
 
| [Toshiba Logo] 747 P185 GR J0
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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.
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 +
[https://cdn.datasheetspdf.com/pdf-down/M/E/7/ME7660C-MicroOne.pdf MicroOne ME7660C Datasheet]
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 +
The board has edge soldered connectors similar to these:
 +
 +
[https://www.digikey.com/product-detail/en/amphenol-icc-commercial-products/L717SDE09PVF/L717SDE09PVF-ND/4886813 Amphenol L717SDE09PVF]
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 +
[https://www.digikey.com/product-detail/en/assmann-wsw-components/A-DF-09-LL-Z/AE11063-ND/5051922 Assmann A-DF 09 LL/Z]
  
 
== Online Resources ==
 
== Online Resources ==
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[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

Dtech DT-9011

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.

MicroOne ME7660C Datasheet

The board has edge soldered connectors similar to these:

Amphenol L717SDE09PVF

Assmann A-DF 09 LL/Z

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)