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
5 - 16
66125
DUAL CHANNEL, HERMETICALLY SEALED 20 PIN LCC
VERY HIGH SPEED, SIMILAR TO 4N55
Mii
OPTOELECTRONIC PRODUCTS
DIVISION
Features:
DSCC Drawing 87679032X
1500 Vdc isolation test voltage
TTL and CMOS compatible
2mHZ bandwidth typical
High radiation immunity
Hermetic
Package
Applications:
Military and Space
High reliability systems
Voltage Level Shifting
Isolated Receiver Input
Communication
systems
Medical
systems
DESCRIPTION
The 66125 optocoupler contains two completely isolated optocouplers in a hermetically sealed 20 pin LCC package. Each
channel provides high switching speeds while providing high isolation (1500Vmin) over the full military temperature range
(-55 to +125C). The 66125 is available in standard and screened versions or tested to customer specifications.MIL-PRF-
38534.
ABSOLUTE MAXIMUM RATINGS
Storage Temperature........................................................................................................................................... -65C to +150C
Operating Free-Air Temperature Range ............................................................................................................. -55C to +125C
Lead Solder Temperature.........................................................................................260C for 10s (1.6mm below seating plane)
Peak Forward Input Current ........................................................................................................................ 40mA (1ms duration)
Average Forward Input Current ............................................................................................................................................20mA
Input Power Dissipation .......................................................................................................................................................40mW
Reverse Input Voltage (each channel) .......................................................................................................................................5V
Supply Voltage - V
CC
(each channel) .........................................................................................................................-0.5V to 20V
Output Current - I
O
(each channel) .......................................................................................................................................20mA
Output Power Dissipation (each channel)..(derate linearly at a rate of 1.4mW/C above 100
C) ....................................50mW
Output Voltage - V
O
(each channel)...........................................................................................................................-0.5V to 20V
Base Current (each channel)...................................................................................................................................................5mA
Package Dimensions Schematic Diagram
A
K
A
K
Vcc1
V01
GND1
VB1
Vcc2
GND2
VB2
3
2
19
20
10
8
7
15
13
12
14
0
V02
PIN 1 IDENTIFIER
R0.008 [R0.20]
PIN 16
66125
XXXXX
PIN 1
0.300 [7.62]
0.006
ALL DIMENSIONS ARE IN INCHES [MILLIMETERS]
0.090 [2.29] 0.009
0.075 [1.91] 0.007
TYP 0.050 [1.27]
0.050 [1.27] TYP
0.350 [8.89]
0.008
PIN 1
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
5 - 17
66125
4N55 DUAL CHANNEL, HERMETICALLY SEALED OPTOCOUPLER
ELECTRICAL CHARACTERISTICS
T
a
= -55
C to 125C unless otherwise specified.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
TEST CONDITIONS
NOTE
Current Transfer Ratio
CTR
9
20
%
I
F
= 16mA, V
O
= 0.4V , V
CC
= 4.5V
1, 2
Output Leakage Current
I
OH1
70
250
A
I
F
= 250
A, V
CC
= V
O
= 18V
I
F
(other channel) = 20mA
1
Logic High Output Current
I
OH
20
100
A
I
F
= 0, V
CC
= V
O
=18V
I
F
(other channel) = 20mA
1
High Level Output Current
I
CCH
0.2
10
A
I
F
= 0, V
CC
= 18V
I
F
(other channel) = 20mA
1
Low Level Supply Current
I
CCL
35
200
A
I
F1
= I
F2
= 20mA, V
CC
= 18V
1
Input Forward Voltage
V
F
1.5
1.8
V
I
F
= 20mA
1
Input Reverse Breakdown Voltage
BV
R
3
V
I
R
= 10A
1
Input-Output Insulation Leakage
Current
I
I--O
1.0
A
V
I--0
= 1500Vdc,
Relative Humidity = 45%
t
A
= 25C, t = 5s
3
Propagation Delay Time To High
Output Level
t
PLH
2
6
s
I
F
= 16mA, V
CC
= 5V, R
L
= 8.2k
C
L
= 50pF
1
Propagation Delay Time To Low
Output Level
t
PHL
0.4
2
s
I
F
= 16mA, V
CC
= 5V, R
L
= 8.2k
C
L
= 50pF
1
TYPICAL CHARACTERISTICS
T
a
= 25
C, V
CC
= 5V Each Channel
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
TEST CONDITIONS
NOTE
Input Capacitance
C
IN
120
pF
V
F
= 0, f = 1MHz
1
Capacitance (Input-Output)
C
I-O
1.0
pF
f = 1MHz, V
F
= 0
1, 4
Capacitance (Input-Input)
C
I-I
0.55
pF
f = 1MHz
3
Input Diode Temperature
Coefficient
v
F
T
A
-1.9
mV/
C
I
F
= 18mA
1
Resistance (Input-Output)
R
I-O
10
12
V
I--O
= 500Vdc
3
Input-Input Insulation Leakage
Current
I
I-I
1
pA
Relative Humidity = 45%
V
I-I
= 500Vdc, t = 5s
3
Common Mode Transient
immunity at High Output Level
CM
H
500
1000
V/
s
V
CM
= 50V
P-P
, R
L
= 8.2k
,
I
F
= 0mA
1, 5
Common Mode Transient
Immunity at Low Output Level
CM
L
500
1000
V/
s
V
CM
= 50V
P-P
, R
L
= 8.2k
,
I
F
= 16mA
1, 6
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 each input pair 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).
RECOMMENDED OPERATING CONDITIONS:
PARAMETER
SYMBOL
MIN
MAX
UNITS
Input Current, Low Level
I
FL
0
250
A
Supply Voltage
V
CC
2
18
V
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