PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 1 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
1.The KB845 (4-channel) is optically coupled isolators containing a
5.Signal transmission between circuits of different potentials and impedances
GaAs light emitting diode and a darlington silicon phototransistor.
3.System appliances, measuring instruments
2.Registers, copiers, automatic vending machines
4.Industial robots
1.Computer terminals
APPLICATIONS
2.The lead pitch is 2.54mm
DESCRIPTION
2.High isolation voltage between input and output (Viso=5000 Vrms)
4. Recognized by UL and CUL, file NO. E225308
1.High current transfer ratio. (CTR:MIN.600% at I
F
=1mA.V
CE
=2V)
KB845:4-channel type
3.Compact dual-in-line package
FEATURES
PHOTOCOUPLER SERIES
HIGH ISOLATION VOLTAGE
HIGH SENSITIVITY
GENERAL PURPOSE
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 2 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
7
[
0.
2
76]
0.25 [0.01] 0.1
3.
0
[
0
.
11
8
]
0.5 [0.02] 0.1
?
?
Internal connection
diagram
7.62 [0.3] 0.3
0.
4[
0.
01
5]
M
I
N
.
3
.
5
[
0
.
138
]
19.82 [0.78]
2
.
7
[
0
.
106
]
1.2 [0.047] 0.3
0.9 [0.035] 0.2
1
8
4
3
2
1
2.54 [0.1] 0.25
9
16
KB
8
1
5
KB
8
1
5
KB
8
1
5
KB
8
1
5
6.
5
[
0
.
25
6
]
13
14
15
16
Top View
8
7
5 6
9
10
12 11
* PACKAGE DIMENSIONS (UNIT: mm)
DIP Type
TOLERANCE : 0.5[0.02] UNLESS OTHERWISE NOTED.
1, 3, 5, 7. Anode
2, 4, 6, 8. Cathode
10, 12, 14, 16. Collector
9, 11, 13, 15. Emitter
mark
Anode
?= 0 to 13
:
mA
I
F
Forward current
Power dissipation
Collector-emitter voltage
Collector current
Collector power dissipation
Total power dissipation
Emitter-collector voltage
Operating temperature
Storage temperature
Soldering temperature
For 10 seconds
40 to 60%RH, AC for 1 minute
Isolation voltage
Output
Input
:C
-55~+125
Tstg
260
Tsol
:C
mA
80
I
C
-30~+100
5000
Topr
Viso
:C
V
rms
200
150
P
C
Ptot
mW
mW
V
ECO
V
CEO
6
V
35
V
P
70
mW
Absolute Maximum Ratings
Symbol
Parameter
(Ta=25:)
Rating
Unit
50
C
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 3 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
Transfer
charact-
eristics
Response time
Rise time
Fall time
t
V
CE
=2V, I
C
=10mA,R
L
=100
[
53
250
60
300
C
C
Forward voltage
* Electro-optical Characteristics
Current transfer ratio
Peak forward voltage
Collector dark current
Collector-emitter saturation voltage
Input
Output
I
FM
=0.5A
3.0
V
FM
V
CE(
sat
)
CTR
I
CEO
I
F
=20mA, I
C
=5mA
I
F
=1mA, V
CE
=2V
0.8
1.0
600
7500
V
CE
=10V,I
F
=0mA
-6
10
Parameter
V
F
Symbol
I
F
=20mA
Conditions
1.2
1.4
Typ.
Min.
Max.
V
V
%
A
V
Unit
t
f
r
X 100%
CTR= Ic
F
I
1600
Reverse current
I
R
V
R
=4V
10
uA
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 4 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
10
C
o
lle
c
t
o
r
d
a
r
k
c
u
r
r
e
n
t
I
CE
O
(A
)
-25
25
0
10
-9
100
75
50
-7
10
-8
10
-6
10
-5
V
+-
=10V
10
-4
50
F
o
r
w
ar
d
c
u
r
r
e
n
t
I
F
(m
A
)
2.0
1
0.5
0
1.5
1.0
2
3.5
2.5 3.0
5
20
200
100
500
-10
10
-25
Rel
a
t
i
o
v
ecurr
ent t
ra
n
s
f
e
r
r
a
t
i
o
n
(
%)
50
0
100
150
0
25
75
50
100
50
0.8
0.9
0.7
0.6
0.5
0.4
0.3
0.1
0.2
-25
0
0
25
1.0
100
75
C
I
.
=10mA
40
C
o
l
l
e
c
t
o
r
c
urr
ent
I
C
(m
A
)
0
0
2
1
3
20
80
60
100
1mA
5
4
2mA
5mA
Pc(MAX)
Fig. 1 Current Transfor Ratio vs.
Forward Current
Fig. 2 Forward Current vs.
Forward voltage
Fig. 4 Relative Current Transfer Ratio
vs. Ambient Temperature
Fig. 3 Collector Current vs.
Collector-emitter Voltage
Fig. 5 Collector-emitter Saturation
Voltage vs. Ambient Temperature
Fig. 6 Collector Dark Current vs.
Ambient Temperature
Ta=75:C
50:C
25:
C
0:C
-25:C
10
Ta=25 :
C
Ambient temperature Ta (:C)
400
800
1200
1600
2000
2400
0
0.1 0.2 0.5
1
2 3 4 5 6 7
10
Cur
r
en
t
t
r
ansfer
r
a
t
i
o
C
T
R
(
%)
V
+-
=2V
Ta=25:C
I
.
=1mA
V
+-
=2V
C
o
l
l
e
c
t
o
r
-
e
m
i
t
t
er
s
at
urat
i
o
n
v
o
l
t
a
g
e
V
CE
(sat)
(
V
)
I =20mA
I =5mA
.
+
Ambient temperature Ta(:C)
Collector-emitter voltage V
+-
(V)
Forward current I
.
(mA)
Forward voltage V
.
8
Ambient temperature
Ta(:)
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 5 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
10
R
e
spo
n
se
t
i
m
e
(
0.05
0.1
Fig. 10 Frequency Response
Load resistance R
Vo
lta
g
e
gai
n
Av
(
d
B
)
-20
-10
0
1
0.05
5
t
d
D
Test Circuit for Frequency Response
R
Frequency f(kHz)
1
0.5
0.2
5
2
50
100
[
R
L
=10K
[
1k
[
s
CE
=2mA
Ta=25
V
I
C
=2V
:C
0.5
0.2
1
(K[)
L
d
t
2
t
Output
R
L
Vcc
90%
r
f
t
s
t
=2V
=10mA
Ta=25
Fig. 9 Response Time vs.
Load Resistance
Fig. 7 Forward Current vs.
Ambient Temperature
Ambient temperature Ta( C)
100
s)
g
50
500
200
V
CE
I
C
Fo
r
w
ar
d c
u
r
r
ent
I
.
(mA
)
-25
0
10
0
20
30
40
50
60
Ambient Temperature
Output
Input
Ambient temperature Ta(
Test Circuit for Response Time
C
o
ll
ec
t
o
r
po
w
e
r
d
i
s
s
i
p
a
t
io
n
P
c
(
m
W)
-25
0
25
50
t d
tr
:
C
tf
:
Input R
D
Output
R
L
Vcc
25
50
75
100
125
100
50
0
150
200
75
100
125
10%
:
C)
Fig. 8 Collector Power Dissipation vs.
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 6 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
Be aware that power is suddenly into the component any surge current may cause damage happen,
even if the voltage is within the absolute maximum ratings.
1.Recommended soldering conditions (Dip soldering)
2.Cautions regarding noise
Avoid removing the residual flux with freon-based and chlorine-based cleaning solvent.
* NOTES ON HANDLING
(2) Cautions
Fluxes
Flux
Cycle
Temperature
(1) Dip soldering
Time
Rosin flux containing small amount of chlorine
(The flux with a maximum chlorine content of 0.2 Wt % is recommended.)
One cycle allowed to be dipped in solder including plastic mold portion.
260:C or below (molten solder temperature)
Less than 10 seconds.
Fig. 11 Collector-emitter Saturation
Voltage vs. Forward Current
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 7 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
Within this device there exists GaAs (Gallium Arsenide) material which is a harmful substance if ingested.
We are mention about our product quality stablity, semiconductor devices in general can
GaAs dust and fumes are toxic. Do not break, cut or pulverize the product, or use chemicals to dissolve them.
CAUTION
malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
standards of safety, and to a avoid situations in which a malfunction or failure of a
stress. It is the responsibility of the buyer, when utilizing KINGBRIGHT products, to observe
KINGBRIGHT product could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that KINGBRIGHT products are used within
specified operating ranges as set forth in the most recent products specifications.
RESTRICTIONS ON PRODUCT USE
The information in this document is subject to change without notice. Before using this
document, please confirm that this is the latest version. Not all devices / types available
in every country.
PHOTOCOUPLER
KB845
SPEC NO: DSAD1544
REV NO: V.2
DATE:MAY/05/2003
PAGE: 8 OF 8
APPROVED: J.Lu
CHECKED:Tracy Deng
DRAWN:D.L.HUANG
* ORDERING INFORMATION
Part Number
Packing Style
Package
25pcs / each tube
16-pin DIP
KB845
Dimension of Carton
A-A Side view
TOLERANCE : 0.4[0.012] UNLESS OTHERWISE NOTED.
Dimension of Tube
Unit:mm
)
130.5
25.50.5
)
5301.0
25.50.5
130.5
5301.0
6.70
11.00
12.20
8.20
Kingbright 0040
10
.
0
0
5.
3
0
0.
6
0
O2.90.1-8
PDF 
ZIP