Datasheet
SPEC NO: DSAD1550 REV NO: V.9 DATE: SEP/04/2007 PAGE: 3 OF 9
APPROVED: WYNEC CHECKED: Tracy Deng DRAWN: W.J.ZHU ERP: 1205000014
PHOTOCOUPLER
Part Number: KB827
*Electro-optical Characteristics
Parameter Symbol Conditions Min. Typ. Max. Unit
Input
Forward voltage V
F
I
F
=20mA ___ 1.2 1.4 V
Peak forward voltage V
FM
I
FM
=0.5A ___ ___ 3.0 V
Reverse current I
R
V
R
=4V ___ ___ 10
μA
Output Collector dark current I
CEO
V
CE
=20V,I
F
=0mA ___ ___
10
-7
nA
Transfer
charact-
eristics
*1
Current transfer ratio CTR I
F
=5mA,V
CE
=5V 50 ___ 600 %
Collector-emitter saturation voltage
V
CE(
sat
)
I
F
=20mA, I
C
=1mA ___ 0.1 0.2
V
Cut-off frequency
f
c
V
CE
=5V, I
C
=2mA
R
L
=100Ω,-3dB
___ 80 ___ KHz
Response time
Rise time
t
r
V
CE
=2V, I
C
=2mA
R
L
=100Ω
___ 4 18
μs
Fall time
t
f
___ 3 18
μs
X 100%
Classification table of current transfer ratio is shown below.
CTR=
F
I
Ic
A