HCPL-263N-500E Avago Technologies US Inc., HCPL-263N-500E Datasheet - Page 14

• Manufacturer Part Number: HCPL-263N-500E
• Description: OPTOCOUPLER 2CH 10MBD 8-SMD
• Manufacturer: Avago Technologies US Inc.

Specifications of HCPL-263N-500E

• Voltage - Isolation: 3750Vrms
• Number Of Channels: 2, Unidirectional
• Current - Output / Channel: 50mA
• Data Rate: 10MBd
• Propagation Delay High - Low @ If: 53ns @ 3.5mA
• Current - Dc Forward (if): 10mA
• Input Type: DC
• Output Type: Open Collector
• Mounting Type: Surface Mount, Gull Wing
• Package / Case: 8-SMD Gull Wing
• No. Of Channels: 2
• Optocoupler Output Type: Logic Gate
• Input Current: 10mA
• Output Voltage: 7V
• Opto Case Style: SMD
• No. Of Pins: 8
• Peak Reflow Compatible (260 C): Yes
• Isolation Voltage: 3.75kV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 19. Recommended printed circuit board layout.
Figure 20. Recommended drive circuit for HCPL-261A/-261N families for high-CMR (similar for HCPL-
263A/-263N).
14
OR ANY TOTEM-POLE
OUTPUT LOGIC GATE
*Higher CMR may be obtainable by connecting pins 1, 4 to input ground (Gnd1).
V
V
CC
CC
*
HIGHER CMR MAY BE OBTAINABLE BY CONNECTING PINS 1, 4 TO INPUT GROUND (GND1).
BUS (FRONT)
BUS (FRONT)
N.C.
N.C.
N.C.
N.C.
V CC
74LS04
GND1
(MAX.)
(MAX.)
357 Ω
357 Ω
0.1µF
0.1µF
0.1µF
SINGLE CHANNEL PRODUCTS
DUAL CHANNEL PRODUCTS
*
*
1
2
3
4
HCPL-261A fig 19
HCPL-261A/261N
SHIELD
10 mm MAX. (SEE NOTE 16)
GND BUS (BACK)
10 mm MAX. (SEE NOTE 16)
GND BUS (BACK)
8
7
6
5
ENABLE
(IF USED)
OUTPUT 1
ENABLE
(IF USED)
OUTPUT 2
0.01 µF
OUTPUT 1
OUTPUT 2
GND2
350 Ω
V CC+
V O
GND
Application Information
Common-Mode Rejection for HCPL-
261A/HCPL-261N Families:
Figure 20 shows the recommended
drive circuit for the HCPL-261N/-
261A for optimal common-mode
rejection performance. Two main
points to note are:
1. The enable pin is tied to V
2. Two LED-current setting resistors
If the enable pin is left floating, it is
possible for common-mode tran-
sients to couple to the enable pin,
resulting in common-mode failure.
This failure mechanism only occurs
when the LED is on and the output
is in the Low State. It is identified as
occurring when the transient output
voltage rises above 0.8 V. Therefore,
the enable pin should be connected
to either V
best common-mode performance
with the output low (CMR
failure mechanism is only present
in single-channel parts (HCPL-261N,
-261A, -061N, -061A) which have the
enable function.
Also, common-mode transients can
capacitively couple from the LED an-
ode (or cathode) to the output-side
ground causing current to be shunt-
ed 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 21 shows the parasitic
capacitances which exists between
LED anode/cathode and output
ground (C
Figure 21 on the input side is an AC-
equivalent circuit.
than floating (this applies to
single-channel parts only).
are used instead of one. This is
to balance I
common-mode transients.
LA
CC
and C
or logic-level high for
LED
LC
variation during
). Also shown in
CC
L
). This
rather