6N138/ 6N139
Vishay Semiconductors
Current Transfer Ratio
Parameter
Current Transfer Ratio
5), 6)
Current Transfer Ratio
Test condition
I
F
= 1.6 mA, V
O
= 0.4 V,
V
CC
= 4.5 V
I
F
= 0.5 mA, V
O
= 0.4 V,
V
CC
= 4.5 V
I
F
= 1.6 mA, V
O
= 0.4 V,
V
CC
= 4.5 V
5)
6)
Part
6N138
6N139
6N139
Symbol
CTR
CTR
CTR
Min
300
400
500
Typ.
1600
1600
2000
Max
Unit
%
%
%
DC current transfer ratio is defined as the ratio of output collector current, I
O
, to the forward LED input current, I
F
times 100 %.
Pin 7 open
Switching Characteristics
Parameter
Propagation delay time to logic
low at output
Propagation delay time to logic
low at output
6) , 8)
Test condition
I
F
= 1.6 mA, R
L
= 2.2 kΩ
I
F
= 0.5 mA, R
L
= 4.7 kΩ
I
F
= 12 mA, R
L
= 270
Ω
Part
6N138
6N139
6N139
6N138
6N139
6N139
Symbol
t
PHL
t
PHL
t
PHL
t
PLH
t
PLH
t
PLH
Min
Typ.
2.0
6.0
0.6
2.0
4.0
1.5
Max
10
25
1.0
35
60
7.0
Unit
µs
µs
µs
µs
µs
µs
Propagation delay time to logic
high at output
Propagation delay time to logic
high at output
6)
8)
6) , 8)
I
F
= 1.6 mA, R
L
= 2.2 kΩ
I
F
= 0.5 mA, R
L
= 4.7 kΩ
I
F
= 12 mA, R
L
= 270
Ω
Pin 7 open
Using a resistor between pin 5 and 7 will decrease gain and delay time.
Common Mode Transient Immunity
Parameter
Test condition
Symbol
| CM
H
|
Min
Typ.
500
Max
Unit
V/µs
I
F
= 0 mA, R
L
= 2.2 kΩ, R
CC
= 0,
Common mode transient
immunity, logic high level output |V
CM
| = 10 V
P-P
9) , 10)
Common mode transient
immunity, logic low level output
9) , 10)
9)
I
F
= 1.6 mA, R
L
= 2.2 kΩ,
R
CC
= 0, |V
CM
| = 10 V
P-P
| CM
L
|
- 500
V/µs
Common mode transient immunity in logic high level is the maximum tolerable (positive) dVcm/dt on the leading edge of the common
mode pulse, V
CM
, to assure that the output will remain in a logic high state (i.e. V
O
> 2.0 V) common mode transient immunity in logic low
level is the maximum tolerable (negative) dVcm/dt on the trailing edge of the common mode pulse signal, V
CM
to assure that the output
will remain in a logic low state (i.e. V
O
< 0.8 V).
10)
In applications where dv/dt may exceed 50,000 V/µs (such as state discharge) a series resistor, R
CC
should be included to protect I
C
from destructively high surge currents.The recommend value is R
CC
≅[(1
V)/(0.15 I
F
(mA)] KΩ
www.vishay.com
4
Document Number 83605
Rev. 1.5, 26-Oct-04
VISHAY [ VISHAY TELEFUNKEN ]
