
MICROPAC INDUSTRIES, INC.
OPTOELECTRONIC PRODUCTS DIVISION
725 E. Walnut St., Garland, TX 75040
(972) 272-3571
Fax (972) 487-6918
www.micropac.com
E-MAIL:
optosales@micropac.com
3 - 29
66024
4N55 DUAL CHANNEL, HERMETICALLY SEALED OPTOCOUPLER
ELECTRICAL CHARACTERISTICS
T
a
= -55
°
C to 125
°
C unless otherwise specified.
PARAMETER
Current Transfer Ratio
SYMBOL
CTR
MIN
9
TYP
20
MAX
UNITS
%
TEST CONDITIONS
I
F
= 16mA, V
O
= 0.4V , V
CC
= 4.5V
I
F
= 250
μ
A, V
CC
= V
O
= 18V
I
F
(other channel) = 20mA
I
F
= 0, V
CC
= V
O
= 18V
I
F
(other channel) = 20mA
I
F
= 0, V
CC
= 18V
I
F
(other channel) = 20mA
I
F1
= I
F2
= 20mA, V
CC
= 18V
I
F
= 20mA
I
R
= 10μA
V
I—0
= 1500Vdc,
Relative Humidity = 45%
t
A
= 25°C, t = 5s
I
F
= 16mA, V
CC
= 5V, R
L
= 8.2k
C
L
= 50pF
I
F
= 16mA, V
CC
= 5V, R
L
= 8.2k
C
L
= 50pF
NOTE
1, 2
Output Leakage Current
I
OH1
70
250
μ
A
1
Logic High Output Current
I
OH
20
100
μ
A
1
High Level Output Current
I
CCH
0.2
10
μ
A
1
Low Level Supply Current
I
CCL
V
F
BV
R
I
I—O
35
200
μ
A
1
Input Forward Voltage
1.5
1.8
V
1
Input Reverse Breakdown Voltage
3
V
1
Input-Output Insulation Leakage
Current
1.0
μA
3
Propagation Delay Time To High
Output Level
t
PLH
2
6
μ
s
1
Propagation Delay Time To Low
Output Level
t
PHL
0.4
2
μ
s
1
TYPICAL CHARACTERISTICS
T
a
= 25
C, V
CC
= 5V Each Channel
PARAMETER
Input Capacitance
SYMBOL
C
IN
C
I-O
C
I-I
v
F
T
A
MIN
TYP
120
MAX
UNITS
pF
TEST CONDITIONS
V
F
= 0, f = MHz
f = 1MHz, V
F
= 0
f = 1MHz
I
F
= 18mA
NOTE
1
Capacitance (Input-Output)
1.5
pF
1, 4
Capacitance (Input-Input)
0.55
pF
Input Diode Temperature Coefficient
-1.9
mV/
°
C
1
Resistance (Input-Output)
R
I-0
I
I-I
10
12
V
I—O
= 500Vdc
Relative Humidity = 45%
V
I-I
= 500Vdc, t = 5s
V
CM
= 10V
P-P
, R
L
= 8.2k
,
I
F
= 0mA
V
CM
= 10V
P-P
, R
L
= 8.2k
,
I
F
= 16mA
1
Input-Input Insulation Leakage Current
1
pA
3
Common Mode Transient immunity at High
Output Level
CM
H
500
1000
V/
μ
s
1, 5
Common Mode Transient Immunity at Low
Output Level
NOTES:
1.
Each channel.
2.
CURRENT TRANSFER RATIO is defined as the ratio of output collector current, I
O
, to the forward LED input current, I
F
, times 100%.
3.
Measured between each input pair shorted together.
4.
Measured between input pins shorted together and the output pins for that channel shorted together.
5.
CM
H
is the maximum tolerable common mode transient to assure that the output will remain in a high logic state (ie. V
O
>
@.0V).
6.
CM
L
is the maximum tolerable common mode transient to assure that the output will remain in a low logic state (ie. V
O
<
0.8V).
CM
L
500
1000
V/
μ
s
1, 6