FEATURES
• Each Channel: Guaranteed CTR Symmetry,
• Bidirectional AC Input
• Industry Standard SOIC-8 Surface Mountable
• Standard Lead Spacing, .05"
• Available in Tape and Reel Option
DESCRIPTION
The ILD256 is a dual channel optocoupler. Each
channel consists of two infrared emitters con-
nected in anti-parallel and coupled to a silicon
NPN phototransistor detector.
These circuit elements are constructed with a stan-
dard SOIC-8 footprint.
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) of 20% at I
Maximum Ratings
Emitter (Each Channel)
Continuous Forward Current .........................30 mA
Power Dissipation at 25 C............................45 mW
Derate Linearly from 25 C......................0.5 mW/ C
Detector (Each Channel)
Collector-Emitter Breakdown Voltage...............70 V
Emitter-Collector Breakdown Voltage.................7 V
Power Dissipation ........................................55 mW
Derate Linearly from 25 C....................0.55 mW/ C
Package
Total Package Dissipation at 25 C Ambient
Derate Linearly from 25 C......................2.0 mW/ C
Storage Temperature................... –55 C to +150 C
Operating Temperature ...............–55 C to +100 C
Soldering Time at 260 C ............................. 10 sec.
2:1 Maximum
Package
(Conforms to EIA Standard 481-2)
(LED + Detector) ....................................200 mW
F
= 10 mA.
Characteristics (T
Dimensions in inches (mm)
Emitter (Each Channel)
Forward Voltage
Reverse Current
Detector (Each Channel)
Breakdown Voltage
Leakage Current,
Collector-Emitter
Package
DC Current Transfer
Symmetry
Saturation Voltage,
Collector-Emitter
Isolation Voltage,
Input to Output
Collector-Emitter
Emitter-Collector
CTR at + 10 mA
CTR at -10 mA
.040 (1.02)
(6.10)
.240
.004 (.10)
.008 (.20)
Pin One I.D.
(3.05 .05)
.120 .002
5–1
DUAL AC INPUT PHOTOTRANSISTOR
(5.84 .05)
.230 .002
A
=25 C)
SURFACE MOUNT OPTOCOUPLER
.050(1.27) Typ.
Sym
V
I
BV
BV
I
CTR
V
V
R
CEO
F
CEsat
IO
CEO
ECO
.016 (.41)
.020 .004
C L
(.51 .10)
.008 (.20)
2 Plcs.
(3.91 .05)
.154 .002
.015 .002
Min.
70
7
20
0.5
2500
(.38 .05)
Typ.
1.2
0.1
5
1.0
A/K
K/A
A/K
K/A
R.010
(.25) Max.
5 Max.
Max.
1.55
100
50
2.0
0.4
SMALL OUTLINE
40
1
2
3
4
.0585 .002
Unit
V
mA
V
V
nA
%
VAC
Lead coplanarity
(1.49 .05)
7
.001 Max.
ILD256
RMS
.125 .002
(3.18 .05)
AUGUST 1995
Condition
I
V
I
I
V
I
V
I
I
t=1 min.
8
7
6
5
F
C
E
F
F
C
R
CE
CE
= 10 mA
=10 A
= 10 mA,
= 16 mA,
=10 A
=2 mA
=6.0 V
C
E
C
E
=10 V
=5 V