IL66B
Photodarlington
Optocoupler
FEATURES
• Internal RBE for High Stability
• High Current Transfer Ratio
at
I
F
=2.0 mA,
V
CE
=5.0 V
IL66B-1, 200% min.
IL66B-2, 750% min.
• Withstand Test Voltage, 5300 V
RMS
• No Base Connection
• High Isolation Resistance
• Standard Plastic DIP Package
• Underwriters Lab Approval #E52744
•
V
VDE 0884 Available with Option 1
D E
Dimensions in inches (mm)
3
.248 (6.30)
.256 (6.50)
4
5
6
2
1
pin one ID
Anode
1
Cathode
2
NC
3
6
NC
5
Collector
4
Emitter
.335 (8.50)
.343 (8.70)
.039
(1.00)
Min.
4°
typ.
.018 (0.45)
.022 (0.55)
.048 (0.45)
.022 (0.55)
.130 (3.30)
.150 (3.81)
18°
.031 (0.80) min.
.031 (0.80)
.035 (0.90)
.100 (2.54) typ.
3°–9°
.010 (.25)
typ.
.300–.347
(7.62–8.81)
.114 (2.90)
.130 (3.0)
.300 (7.62)
typ.
DESCRIPTION
The IL66B is an optically coupled isolator
employing a Gallium Arsenide infrared emitter
and a silicon photodarlington detector. Switching
can be accomplished while maintaining a high
degree of isolation between driving and load cir-
cuits. They can be used to replace reed and mer-
cury relays with advantages of long life, high
speed switching and elimination of magnetic
fields.
Maximum Ratings
(at 25
°
C)
Emitter
Peak Reverse Voltage .................................. 6.0 V
Continuous Forward Current ...................... 60 mA
Power Dissipation at 25
°
C....................... 100 mW
Derate Linearly from 55
°
C ................. 1.33 mW/
°
C
Detector
Collector-Emitter Breakdown Voltage........... 60 V
Emitter-Collector Breakdown Voltage........... 5.0 V
Power Dissipation at 25
°
C Ambient ........ 200 mW
Derate Linearly from 25
°
C ................... 2.6 mW/
°
C
Package
Isolation Test Voltage (t=1.0 sec.) ....... 5300 V
RMS
Isolation Resistance
V
IO
=500 V,
T
A
=25
°
C.............................
≥
10
12
Ω
V
IO
=500 V,
T
A
=100
°
C...........................
≥
10
11
Ω
Total Dissipation at 25
°
C ......................... 250 mW
Derate Linearly from 25
°
C ................... 3.3 mW/
°
C
Creepage Path ................................... 7.0 min mm
Clearance Path................................... 7.0 min mm
Storage Temperature................. –55
°
C to +150
°
C
Operating Temperature ............. –55
°
C to +100
°
C
Lead Soldering Time at 260
°
C .................. 10 sec.
Electrical Characteristics
(
T
A
=25
°
C)
Symbol
Emitter
Forward Voltage
Reverse Current
Capacitance
Detector
Breakdown Voltage
Collector-Emitter
Leakage Current
Collector-Emitter
Package
Current Transfer Ratio CTR
IL66B-1
IL66B-2
Saturation Voltage
Collector-Emitter
Turn-On,
Turn-Off Time
—
200
750
—
—
1000
—
—
1.0
200
V
µ
s
%
BV
CEO
60
—
—
1.0
—
100
V
nA
Min.
Typ.
Max.
Unit
Condition
V
F
I
R
C
0
—
—
—
1.25
0.01
25
1.5
100
—
V
µ
A
pF
I
F
=10 mA
V
R
=3.0 V
V
R
=0 V
I
C
=100
µ
A,
I
F
=0
V
CE
=50 V,
I
F
=0
I
CEO
I
F
=2.0 mA,
V
CE
=5.0 V
I
C
=10 mA,
I
F
=10 mA
V
CC
=10 V
I
F
=2.0 mA,
R
L
=100
Ω
V
CEsat
t
on
,
t
off
Document Number: 83639
Revision 17-August-01
www.vishay.com
2–98
Figure 1. Forward voltage versus forward current
1.4
VF - Forward Voltage - V
Figure 5. High/low propagation delay versus
collector load resistance and LED current
50
tpHL - High/Low Propagation
Delay - µs
1.3
1.2
1.1
1.0
0.9
0.8
0.7
.1
Ta = -55°C
Ta = 25°C
40
30
20
10
0
0
10KΩ
Ta = 25°C
Vcc = 5 V
Vth = 1.5 V
220Ω
Ta = 85°C
1
10
IF - Forward Current - mA
100
5
10
15
IF - LED Current - mA
20
Figure 2. Normalized non-saturated and saturated
CTR
ce
versus LED current
2.0
Figure 6. Low/high propagation delay versus
collector load resistance and LED current
tpLH - Low/High Propagation
Delay - µs
150
125
100
75
50
25
0
0
5
10
15
IF - LED Current - mA
20
Ta = 25°C
Vcc = 5 V
Vth = 1.5 V
2KΩ
10KΩ
NCTRce - Normalized CTRce
1.5
1.0
0.5
Normalized to:
Ta = 25°C
Vce = 5 V
IF = 2 mA
Vce = 5 V
Vce = 1 V
0.0
.1
1
10
IF - LED Current - mA
100
220Ω
Figure 3. Normalized non-saturated and saturated
CTR
ce
versus LED current
NCTRce - Normalized CTRce
1.2
1.0
0.8
0.6
0.4
0.2
0.0
.1
1
10
100
1000
IF - LED Current - mA
Vce = .4 V
Normalized to:
Ta = 25°C
Vce = 5 V
IF = 10 ma
Vce = 5 V
Figure 4. Non-saturated and saturated collector
emitter current versus LED current
10000
Vce = 5 V
1000
100
10
1
.1
.01
.1
1
10
IF - LED Current - mA
100
Vce = .4 V
Document Number: 83639
Revision 17-August-01
Ice - Collector-emitter
current - mA
.001
www.vishay.com
2–99
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