IL256AT
Vishay Semiconductors
Optocoupler, Phototransistor Output,
AC Input, with Base Connection
FEATURES
8
NC
A/C
C/A
1
2
• Guaranteed CTR symmetry, 2:1 maximum
7
B
• Bidirectional AC input industry standard
SOIC-8 Surface mountable package
C
E
6
5
3
4
NC
NC
• Isolation test voltage, 4000 VRMS
• Standard lead spacing, 0.05"
i179025
• Available only on tape and reel (conform to EIA
standard RS481A)
• Lead (Pb)-free component
DESCRIPTION
• Component in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
The IL256AT is an AC input phototransistor optocoupler. The
device consists of two infrared emitters connected in reverse
parallel and coupled to a silicon NPN phototransistor
detector.
APPLICATIONS
• Telecom applications ring detection
These circuit elements are constructed with a standard
SOIC-8 foot print.
The product is well suited for telecom applications such as
ring detection or off/on hook status, given its bidirectional
LED input and guaranteed current transfer ratio (CTR)
minimum of 20 % at IF = 10 mA.
AGENCY APPROVALS
• UL1577, file no. E52744 system code Y
• CUL - file no. E52744, equivalent to CSA bulletin 5A
• DIN EN 60747-5-2 (VDE 0884) available with option 1
ORDER INFORMATION
PART
REMARKS
IL256AT
CTR > 20 %, tape and reel, SOIC-8
ABSOLUTE MAXIMUM RATINGS
PARAMETER
TEST CONDITION
SYMBOL
VALUE
UNIT
INPUT
Forward continuous current
Power dissipation
IF
60
90
mA
mW
Pdiss
Derate linearly from 25 °C
OUTPUT
0.8
mW/°C
Collector-emitter breakdown voltage
Emitter-collector breakdown voltage
Collector-base breakdown voltage
Power dissipation
BVCEO
BVECO
BVCBO
Pdiss
30
5
V
V
70
V
150
2.0
mW
mW/°C
Derate linearly from 25 °C
COUPLER
Isolation voltage, input to output
VISO
Ptot
4000
240
VRMS
mW
Total package dissipation
(LED and detector)
Derate linearly from 25 °C
Storage temperature
3.2
mW/°C
Tstg
- 55 to + 150
- 55 to + 100
10
°C
°C
s
Operating temperature
Soldering time at 260 °C
Tamb
Note
amb = 25 °C, unless otherwise specified.
T
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not implied
at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum ratings for
extended periods of the time can adversely affect reliability.
Document Number: 83620
Rev. 1.8, 08-Jan-08
For technical questions, contact: optocoupler.answers@vishay.com
www.vishay.com
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