Difference between revisions of "Dtech DT-9011 RS-232 Isolator"

Latest revision as of 00:32, 21 May 2020

Dtech DT-9011

Chinese bus powered ("passive") RS-232 isolator.

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:

@@ Line 1: / Line 1: @@
+[[File:Dtech_DT-9011_Stock_Photo.jpg|thumb|Dtech DT-9011]]
 == Overview ==
@@ Line 34: / Line 36: @@
 | U1-U2
 | SOIC-8
-| M?r?ne MB??660C  1940
+| MicroOne ME7660C 1940
 |-
 | U3-U6
@@ Line 43: / Line 45: @@
 |}
-U1 and U2 have their markings partially ground off. The company logo appears to start with a cursive M and end with a cursive e, and it might be a LMC7660/ICL7660/TC7660/TL7660 charge pump.
+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: