OPTOCOUPLER 15MBD 3.3V 8-DIP

HCPL-260L-000E

Manufacturer Part NumberHCPL-260L-000E
DescriptionOPTOCOUPLER 15MBD 3.3V 8-DIP
ManufacturerAvago Technologies US Inc.
HCPL-260L-000E datasheet
 


Specifications of HCPL-260L-000E

Voltage - Isolation3750VrmsNumber Of Channels1, Unidirectional
Current - Output / Channel50mAData Rate15MBd
Propagation Delay High - Low @ If50ns @ 7.5mACurrent - Dc Forward (if)20mA
Input TypeDCOutput TypeOpen Collector
Mounting TypeThrough HolePackage / Case8-DIP (0.300", 7.62mm)
No. Of Channels1Optocoupler Output TypeLogic Gate
Input Current15mAOutput Voltage7V
Opto Case StyleDIPNo. Of Pins8
Propagation Delay Low-high90nsIsolation Voltage3.75kV
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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Application Information
Common-Mode Rejection for HCPL-260L Families:
Figure 13 shows the recom mended drive circuit for op-
timal common-mode rejection performance. Two main
points to note are:
1. The enable pin is tied to V
rather than floating (this
CC
applies to single-channel parts only).
2. Two LED-current setting resistors are used instead of
one. This is to balance I
variation during common-
LED
mode transients.
If the enable pin is left floating, it is possible for common-
mode transients to couple to the enable pin, resulting in
common-mode failure. This failure mechanism only oc-
curs when the LED is on and the output is in the Low
State. It is identified as occurring when the transient out-
put voltage rises above 0.8 V. Therefore, the enable pin
should be connected to either V
or logic-level high for
CC
best common-mode performance with the output low
(CMR
). This failure mechanism is only present in single-
L
channel parts which have the enable function.
*
1
V CC
220 Ω
2
220 Ω
3
74LS04
OR ANY TOTEM-POLE
4
OUTPUT LOGIC GATE
*
GND1
*
HIGHER CMR MAY BE OBTAINABLE BY CONNECTING PINS 1, 4 TO INPUT GROUND (GND1).
Figure 13. Recommended drive circuit for High-CMR.
1
8
1/2 R
LED
2
7
I
LP
1/2 R
LED
C
I
LA
LN
3
6
C
LC
4
5
SHIELD
+
V
CM
Figure 14. AC equivalent circuit.
19
Also, common-mode transients can capacitively cou-
ple from the LED anode (or cathode) to the output-side
ground causing current to be shunted away from the
LED (which can be bad if the LED is on) or conversely
cause current to be injected into the LED (bad if the LED
is meant to be off ). Figure 14 shows the parasitic capaci-
tances which exists between LED anode/cathode and
output ground (C
the input side is an AC-equivalent circuit.
For transients occurring when the LED is on, common-
mode rejec tion (CMR
state) depends upon the amount of LED current drive
(I
). For conditions where I
F
threshold (I
), CMR
TH
I
and I
balance each other. In other words, any condi-
LP
LN
tion where common-mode transients cause a momen-
tary decrease in I
transients which are fast enough.
HCPL-260L
8
0.01 μF
350 Ω
7
6
5
SHIELD
GND2
V
+
CC
0.01 μF
350 Ω
V
O
15 pF
GND
and C
). Also shown in Figure 14 on
LA
LC
, since the output is in the “low”
L
is close to the switching
F
also depends on the extent which
L
will cause common-mode failure for
F
V CC+
V O
GND