HCPL-3700-000E Avago Technologies US Inc., HCPL-3700-000E Datasheet - Page 13

• Manufacturer Part Number: HCPL-3700-000E
• Description: OPTOCOUPLER AC/DC LOGIC 8DIP
• Manufacturer: Avago Technologies US Inc.
• Type: Analogr

Specifications of HCPL-3700-000E

• Output Type: Open Collector
• Package / Case: 8-DIP (0.300", 7.62mm)
• Voltage - Isolation: 3750Vrms
• Number Of Channels: 1, Unidirectional
• Current - Output / Channel: 30mA
• Propagation Delay High - Low @ If: 4µs
• Current - Dc Forward (if): 50mA
• Input Type: Logic
• Mounting Type: Through Hole
• Logic Gate Type: AC / DC to Logic Interface Optocouplers
• Configuration: 1 Channel
• Isolation Voltage: 3750 Vrms
• Maximum Propagation Delay Time: 40000 ns
• Maximum Forward Diode Voltage: 50 mA
• Maximum Forward Diode Current: 4.4 mA
• Maximum Continuous Output Current: 30 mA
• Maximum Power Dissipation: 305 mW
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package Type: 8-Pin DIP
• No. Of Channels: 1
• Optocoupler Output Type: Photodarlington
• Input Current: 3.7mA
• Output Voltage: 20V
• Opto Case Style: DIP
• No. Of Pins: 8
• Common Mode Ratio: 4000
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 516-1545-5

Figure 13. External threshold voltage level selection.
Electrical Considerations
The HCPL-0370/3700/3760
optocouplers have 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
tained from Figure 12. Specific
calculation of R
from Equation (1). Specification
of both V
levels simultaneously can be
obtained by the use of R
as shown in Figure 13 and
determined by Equations (2)
and (3).
R
transient protection by limiting
input current during a transient
condition. For monitoring con-
tacts of a relay or switch, the
HCPL-0370/3700/3760 in
combination with R
be used to allow a specific current
to be conducted 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 1). It is recom-
mended that the low clamp
condition be used when possible.
13
X
X
, to determine larger external
can provide over-current
+
and V
X
-
voltage threshold
can be obtained
X
can be ob-
X
and R
X
and R
P
can
P
The low clamp condition in
conjunction with the low input
current feature will ensure
extremely low input power
dissipation.
In applications where dV
may be extremely large (such as
static discharge), a series resistor,
R
with V
detector IC from destructively
high surge currents. See Note 13
for determination of R
tion, it is recommended that a
ceramic disc bypass capacitor of
0.01 F be placed between Pins 8
and 5 to reduce the effect of
power supply noise.
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.
CC
, should be connected in series
CC
and Pin 8 to protect the
CC
. In addi-
CM
/dt
For one specifically selected
external threshold voltage level V
or V
without use of R
For two specifically selected
external threshold voltage levels,
V
will permit this selection via
equations (2), (3) provided the
following conditions are met. If
the denominator of equation (2) is
positive, then
Conversely, if the denominator of
equation (2) is negative, then
R
R
V
V
V
V
+
X
P
+
+
-
-
and V
=
=
-
, R
I
TH+
R
I
X
TH+
V
V
X
V
V
V
V
(V
-
can be determined
TH+
TH+
=
TH-
TH-
, the use of R
TH-
TH-
(V
-
-V
(V
(V
TH-
and
and
TH-
V
+
+
+
) - V
) - I
) - V
(-)
I
- V
)+I
P
TH+
via
(-)
TH+
V
V
TH-
V
V
TH-
TH+
TH+
+
+
-
-
(-)
(V
- V
- V
- V
- V
X
(V
(V
(V
TH+
and R
TH+
TH-
TH+
TH-
TH+
(1)
-
-
)
)
-V
)
<
>
+
)
P
(2)
I
I
I
I
(3)
TH+
TH+
TH-
TH-
+