Open Collector / Drain output term

  • Thread starter Thread starter Hai Ly Hoang
  • Start date Start date
H

Hai Ly Hoang

"open collector/drain outputs"
"totem"
Can anyone explain in detail these concepts ? Or suggest me a weblinks ?

Thanks in advance
 
"open collector/drain outputs"
"totem"
Can anyone explain in detail these concepts ? Or suggest me a weblinks ?

Thanks in advance
Click to expand...
Open collector/drain mean that these terminals come straight out of
the chip, with no other internal connections to resistors etc - you
must make your own arrangements for biassing them.

d

_____________________________

http://www.pearce.uk.com
 
Hai said:
"open collector/drain outputs"
"totem"
Can anyone explain in detail these concepts ? Or suggest me a weblinks ?

Thanks in advance
Click to expand...
Open collector/drain output: The output between open circuit (high
state) to grounded (low state).

Totem Pole output: Output is pulled high for high state and pulled to
ground for low state.
 
"open collector/drain outputs"
"totem"
Can anyone explain in detail these concepts ? Or suggest me a weblinks ?

Thanks in advance
Click to expand...

---------------------------
Open collector



---o output
/
/
|
----|NPN
|
\
\
v
|
GND

---------------------------

Totem pole


VCC
|
|
/
v
|
----|PNP
|
\
\
|
|
---o output
|
|
/
/
|
----|NPN
|
\
\
v
|
GND

-------------------------------------------


Hope that helps.

Mac
--
 
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