Document Number: 83625 For technical questions, contact: optocoupler.answers@vishay.com
www.vishay.com
Rev. 1.5, 28-Nov-07 1
Linear Optocoupler, PCMCIA Package
IL388
Vishay Semiconductors
DESCRIPTION
The IL388 family of linear optocoupler consist of an IRLED
optically coupled to two photodiodes. The emitter is located
such that both photodiodes receive approximately an equal
amount of infrared light. The diodes produce a proportional
amount of photocurrents. The ratio of the photocurrents
stays constant with high accuracy when either the LED
current changes or the ambient temperature changes. Thus
one can control the output photodiode current.
The IL388 optocouplers can be used with the aid of
operational amplifiers in closed loop conditions to achieve
highly linearly and electrically AC and or DC signals
amplifiers.
FEATURES
• 2.3 mm high SMD package
• High sensitivity (K1) at low operating LED
current
• Couples AC and DC signals
• Low input-output capacitance
• Isolation test voltage, 2130 V
DC
• Low distortion, below - 80 db
• 0.4 mm internal insulation thickness
• Component in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
APPLICATIONS
• Optical DAA for V.34 FAX/modem PCMCIA cards
• Digital telephone line isolation
Note
For additional information on the available options refer to option information.
i179085
1
2
3
4 5
6
7
8
C2
B2
N.C
N.C
K
A
B1
C1
K1
K2
ORDER INFORMATION
PART REMARKS
IL388 Couples AC and DC signals, SOP-8
ABSOLUTE MAXIMUM RATINGS
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
INPUT
Reverse voltage V
R
≤ 3.0 V
Forward current I
F
≤ 30 mA
Surge current pulse width < 10 µs I
PK
≤ 150 mA
Power dissipation P
diss
≤ 150 mW
Derate linearly from 25 °C ≤ 2.0 mW/°C
Junction temperature T
j
≤ 100 °C
OUTPUT
Reverse voltage V
R
≤ 15 V
Power dissipation P
diss
≤ 50 mW
Derate linearly from 25 °C ≤ 0.65 mW/°C
Junction temperature T
j
≤ 100 °C
