HCPL-5761 Avago Technologies US Inc., HCPL-5761 Datasheet - Page 9
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HCPL-5761
Manufacturer Part Number
HCPL-5761
Description
OPTOCOUPLER AC/DC-LOGIC 8DIP
Manufacturer
Avago Technologies US Inc.
Datasheet
1.HCPL-5760.pdf
(10 pages)
Specifications of HCPL-5761
Output Type
Open Collector
Package / Case
8-CDIP
Voltage - Isolation
1500VDC
Number Of Channels
1, Unidirectional
Current - Output / Channel
250µA
Data Rate
100KHz
Propagation Delay High - Low @ If
4µs
Current - Dc Forward (if)
4.5mA
Input Type
AC, DC
Mounting Type
Through Hole
Logic Gate Type
AC/DC to Logic Interface Optocouplers
Configuration
1 Channel
Maximum Forward Diode Voltage
0.73 V
Maximum Continuous Output Current
40 mA
Maximum Power Dissipation
260 mW
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HCPL-5761
Manufacturer:
AGILENT
Quantity:
6
Electrical Considerations
The HCPL-5760, HCPL-5761,
HCPL-576K or 5962-89477
optocoupler has internal
temperature compensated,
predictable voltage and current
threshold points which allow
selection of an external resistor,
R
threshold voltage levels. For a
desired external threshold voltage,
V , a corresponding typical value
of R
10. Specific calculation of R
be obtained from Equation (1) of
Figure 11. Specification of both V
and V
simultaneously can be obtained by
the use of R
Figure 11 and determined by
Equations (2) and (3).
R
transient protection by limiting
input current during a transient
condition. For monitoring contacts
with a relay or switch, the HCPL-
5760/1/K, or 5962-89477 combin-
ation with R
allow a specific current to be con-
ducted through the contacts for
cleaning purposes (wetting current).
The choice of which input voltage
clamp level to choose depends
upon the application of this device
(see Figure 3). It is recommended
that the low clamp condition be
used when possible to lower the
input power dissipation as well as
the LED current, which minimizes
LED degradation over time.
In applications where dV
be extremely large (such as static
discharge), a series resistor, R
should be connected in series with
V
detector IC from destructively high
surge currents. See note 14 for
determination of R
it is recommended that a ceramic
disc bypass capacitor of 0.01 F to
0.1 F be placed between Pins 8
and 5 to reduce the effect of power
supply noise.
9
CC
x
x
, to determine larger external
can provide over-current
and Pin 8 to protect the
x
can be obtained from Figure
-
voltage threshold levels
x
x
and R
and R
p
CC
p
as shown in
. In addition,
can be used to
CM/dt
x
can
may
CC
,
+
Figure 9. Operating circuit for burn-in and steady state life tests.
Figure 10. Typical external threshold characteristic, V vs. R
For interfacing ac signals to TTL
systems, output low pass filtering
can be performed with a pullup
resistor of 1.5 k and 20 F
capacitor. This application
requires a Schmitt trigger gate to
avoid slow rise time chatter
problems. For ac input applica-
tions, a filter capacitor can be
placed across the dc input
terminals for either signal or
transient filtering.
Either ac (Pins 1, 4) or dc (Pins 2,
3) input can be used to determine
external threshold levels.
For one specifically selected
external threshold voltage level V
or V
without use of R
-
, R
R
x
x
can be determined
= –––––––––
V
(-)
+
- V
I
TH+
p
TH+
via
(-)
(-)
(1)
+
For two specifically selected
external threshold voltage levels,
V
permit this selection via
equations (2), (3) provided the
following conditions are met:
–––
R
––––––––––––––––––––––––––– (3)
See Application Note 1004 for
more information.
R
I
V
TH+
+
P
V
x
+
and V
=
-
= –––––––––––––––––––– (2)
(V
I
V
V
V
––– and –––––––– < ––––
TH+
-
x
V
.
TH+
TH-
TH-
- V
-
, the use of R
TH-
(V
(V
TH-
(V
+
) + I
TH-
) - V
+
V
) - V
) - I
V
+
TH-
-
TH+
- V
- V
TH-
TH+
(V
x
TH+
(V
TH-
(V
and R
TH+
(V
-
)
TH+
-
- V
)
)
p
I
I
+
TH-
TH+
will
)