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PHOTOCOUPLER
KB845
GENERAL PURPOSE HIGH ISOLATION VOLTAGE HIGH SENSITIVITY PHOTOCOUPLER SERIES
FEATURES
1.High current transfer ratio.(CTR:MIN.600% at IF=1mA.VCE=2V) 2.High isolation voltage between input and output (Viso=5000 Vrms). 3.Compact dual-in-line package KB845 :4-channel type 4.Recognized by UL and CUL, file NO.E225308. 5.RoHS Compliant.
DESCRIPTION
1.The KB845 (4-channel) is optically coupled isolators containing a GaAS light emitting diode and a darlington silicon phototransistor. 2.The lead pitch is 2.54mm.
APPLICATIONS
1.Computer terminals. 2.Registers,copiers,automatic vending machines. 3.System appliances, measuring instruments. 4.Industial robots. 5.Signal transmission between circuits of different potentials and impedances.
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
PAGE: 1 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
*PACKAGE DIMENSIONS (UNIT:mm) *
DIP Type
Top View
2.54 [0.1] 0.25 16
KB815 KB815 KB815 KB815
TOLERANCE : 0.5[0 0.02] UNLESS OTHERWISE NOTED. 0
Internal connection diagram
9
6.5[0.256]
16 15 14 13 12 11 10 9
Anode mark
1
8 0.9 [0.035] 0.2 1.2 [0.047] 0.3
3.5 [0.138]
1
2
3
4
5
6
7
8
0.4[0.015]MIN.
19.82 [0.78]
2.7 [0.106]
7.62 [0.3] 0.3
7[0.276]
3.0[0.118]
0.5 [0.02] 0.1
0.25 [0.01] 0.1
= 0 to 13
1, 3, 5, 7. Anode 2, 4, 6, 8. Cathode
9, 11, 13, 15. Emitter 10, 12, 14, 16. Collector
*Absolute Maximum Ratings (Ta=25C)
Parameter Forward current Input Power dissipation Collector-emitter voltage Output Emitter-collector voltage Collector current Collector power dissipation Total power dissipation Symbol I P V CEO V ECO IC PC Ptot Viso Topr Tstg Tsol
F
Isolation voltage Operating temperature Storage temperature Soldering temperature
40 to 60%RH, AC for 1 minute For 10 seconds
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
Rating 50 70 35 6 80 150 200 5000 -30~+100 -55~+125 260 Unit mA mW V V mA mW mW Vrms C C C
PAGE: 2 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
*Electro-optical Characteristics
Parameter Forward voltage Input Peak forward voltage
Reverse current
Symbol VF VFM
IR
Conditions IF=20mA IFM=0.5A
VR=4V
Min. Typ. 1.2
Max. Unit 1.4 3.0
10
V V
uA
Output
Collector dark current Current transfer ratio
ICEO CTR VCE(sat) tr tf
VCE=10V,IF=0mA IF=1mA, VCE=2V IF=20mA, I C=5mA VCE=2V, I C=10mA,R L=100 53 600
1600
10 -6 7500 1.0 300 250
A % V
Transfer characteristics
Collector-emitter saturation voltage Rise time Response time Fall time
0.8 60

Ic CTR= I F X 100%
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
PAGE: 3 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
Fig. 1 Current Transfor Ratio vs. Forward Current
2400 VCE=2V Ta=25 C
Fig. 2 Forward Current vs. Forward voltage
500 200
Forward current I F (mA)
Current transfer ratio CTR( %)
2000 1600 1200 800 400 0 0.1 0.2 0.5 1 2 345 67 10
Ta=75C 50C
100 50 20 10 5 2 1
25C 0C -25C
Forward current IF(mA)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 Forward voltage VF(V)
Fig. 3 Collector Current vs. Collector-emitter Voltage
100
Fig. 4 Relative Current Transfer Ratio vs. Ambient Temperature
150
Relatiovecurrent transfer ration( %)
IF=1mA VCE=2V
Ta=25 C 80
Collector current I C (mA)
IF=10mA Pc(MAX) 5mA
100
60
40
2mA
50
20 1mA 0 0 5
0 -25 0 25 50 75 100 Ambient temperature Ta(C)
1
2
3
4
Collector-emitter voltage VCE(V)
Fig. 5 Collector-emitter Saturation Voltage vs. Ambient Temperature
1.0 0.9 0.8 IF =20mA IC =5mA
Fig. 6 Collector Dark Current vs. Ambient Temperature
10 -4
VCE=10V
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -25 0 25 50 75 100
Collector dark current I CEO (A)
10
-5
Collector-emitter saturation voltage VCE(sat) (V)
10 -6 10 -7 10 -8 10 -9
10
-10
-25
0
25
50
75
100
Ambient temperature Ta(C)
Ambient temperature Ta (C)
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
PAGE: 4 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
Fig. 7 Forward Current vs. Ambient Temperature
60
Fig. 8 Collector Power Dissipation vs. Ambient Temperature
200
Collector power dissipation Pc(mW)
50
Forward current IF(mA)
150
40 30 20 10 0 -25 0 25 50 75 100 125
100
50
0 -25 0 25 50 75 100 125
Ambient temperature Ta(C)
Ambient temperature Ta(C)
Fig. 9 Response Time vs. Load Resistance
500
VCE=2V
Test Circuit for Response Time
200
Response time ( s)
100 50
IC=10mA Ta=25C
tr
tf
Input RD
Vcc Input Output
td
10 5
RL
Output 10%
td
90% td tr ts tf
1 0.05 0.1 0.2 0.5 1 2
Load resistance RL (K )
Fig. 10 Frequency Response
VCE=2V IC=2mA Ta=25C
100
Test Circuit for Frequency Response
Vcc Output
0
Voltage gain Av (dB)
RD
RL
-10
RL=10K
1k
-20 0.05 0.2 0.5 1
2
5
50
Frequency f(kHz)
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
s
PAGE: 5 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
Fig. 11 Collector-emitter Saturation Voltage vs. Forward Current
* NOTES ON HANDLING 1.Recommended soldering conditions (Dip soldering) (1) Dip soldering
Temperature Time Cycle Flux 260C or below (molten solder temperature) Less than 10 seconds. One cycle allowed to be dipped in solder including plastic mold portion.
Rosin flux containing small amount of chlorine (The flux with a maximum chlorine content of 0.2 Wt % is recommended.)
(2) Cautions
Fluxes Avoid removing the residual flux with freon-based and chlorine-based cleaning solvent.
2.Cautions regarding noise
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.
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
PAGE: 6 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
CAUTION
Within this device there exists GaAs (Gallium Arsenide) material which is a harmful substance if ingested. GaAs dust and fumes are toxic. Do not break, cut or pulverize the product, or use chemicals to dissolve them.
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. We are mention about our product quality stablity, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing KINGBRIGHT products, to observe standards of safety, and to a avoid situations in which a malfunction or failure of a 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.
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
PAGE: 7 OF 8 ERP:1205000025
PHOTOCOUPLER
KB845
Dimension of Tube 5301.0 25.50.5 130.5 A
TOLERANCE : 0.4[0.012] UNLESS OTHERWISE NOTED. Unit:mm
25.50.5 130.5
Kingbright 0040
O2.90.1-8
A
A-A Side view
12.20 11.00 8.20 6.70
10.00
5301.0
Dimension of Carton
*ORDERING INFORMATION
Part Number KB845 Package 16-pin DIP Package Style 25pcs/each tube
SPEC NO: DSAD1544 APPROVED: J. Lu
REV NO: V.5 CHECKED: Tracy Deng
DATE: MAR/14/2005 DRAWN: S.H.CHEN
0.60
5.30
PAGE: 8 OF 8 ERP:1205000025

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