ISOCOM COMPONENTS 2004 LTD
Unit 25B, Park View Road W est,
Park V iew Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1UD
Tel: (01429) 863609 Fax :(01429) 863581
20/8/08
1.2
3.0
4.0
3.0
3.35
7.0
6.0
0.5
0.5
7.62
1
2
4
3
0.26
13°
Max
2.54 Dimensions in mm
LOW INPUT CURRENT
PHOTOTRANSIST OR
OPTICALLY COUPLED ISOLATORS
APPROVALS
zUL recognised, File No. E91231
Package Code " EE "
'X' SPECIFICATION APPROV ALS
zVDE 0884 in 3 available lead form : -
- STD
- G form
- SMD approved to CECC 00802
DESCRIPTION
The SFH628A series of optically coupled
isolators consist of inverse parallel infrared light
emitting diodes and NPN silicon photo
transistors in space efficient dual in line plastic
packages.
FEATURES
zOptions :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
T ape&reel - add SMT&R after part no.
zLow input current ±0.5mA IF
zHigh Current Transfer Ratios
(63-500% at ±1mA, 32% min at ±0.5mA)
zHigh Isolation V oltage (5.3kVRMS ,7.5kVPK )
zHigh BVCEO (55V min)
zAll electrical parameters 100% tested
zCustom electrical selections available
APPLICATIONS
zComputer terminals
zIndustrial systems controllers
zMeasuring instruments
zSignal transmission between systems of
different potentials and impedances
5.08
4.08
ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)
Storage T emperature -55°C to + 125°C
Operating Temperature -30°C to + 100°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current ±50mA
Power Dissipation 70mW
OUTPUT TRANSISTOR
Collector-emitter V oltage BVCEO 55V
Emitter-collector V oltage BVECO 6V
Collector Current 50mA
Power Dissipation 150mW
POWER DISSIPATION
T otal Power Dissipation 200mW
(derate linearly 2.67mW/°C above 25°C)
OPTION G
7.62
SURFACE MOUNT
OPTION SM
10.16
0.26
10.46
9.86
0.6
0.1 1.25
0.75
SFH628A-2, SFH628A-3,
SFH628A-4
DB92514
DB92514m-AAS/A2
20/8/08
PARAMETER MIN TYP MAX UNITS TEST CONDITION
Input Forward Voltage (V F) 1.5 V IF = ±5mA
Output Collector-emitter Breakdown (BVCEO)55 V I
C = 1mA
( Note 2 )
Emitter-collector Breakdown (BVECO) 6 V I
E = 100μA
Collector-emitter Dark Current (ICEO) 200 nA VCE = 10V
Coupled Current Transfer Ratio (CTR) (Note 2)
SFH628A-2 63 200 % ±1mA IF , 0.5V VCE
SFH628A-2 32 % ±0.5mA IF , 1.5V V CE
SFH628A-3 100 320 % ±1mA IF , 0.5V VCE
SFH628A-3 50 % ±0.5mA IF , 1.5V V CE
SFH628A-4 160 500 % ±1mA IF , 0.5V VCE
SFH628A-4 80 % ±0.5mA IF , 1.5V V CE
Collector-emitter Saturation Voltage VCESAT
SFH628A-2 0. 4 V ±1mA IF , 0.5mA IC
SFH628A-3 0. 4 V ±1mA IF , 0.8mA IC
SFH628A-4 0. 4 V ±1mA IF , 1.25mA IC
Input to Output Isolation Voltage VISO 5300 VRMS See note 1
7500 VPK See note 1
Input-output Isolation Resistance RISO 5x1010 ΩVIO = 500V (note 1)
Response Time (Rise), tr 4 1 8 μSV
CE = 2V , IC = 2mA
Response Time (Fall), tf 3 1 8 μSR
L = 100Ω
ELECTRICAL CHARACTERISTICS ( TA = 25°C Unless otherwise noted )
Note 1 Measured with input leads shorted together and output leads shorted together.
Note 2 Special Selections are available on request. Please consult the factory.
90%
10%
Output
Output
Input
10%
90%
ton
tr
FIG 1
toff
tf
RL
DB92514m-AAS/A2
20/8/08
50
-30 0 25 50 75 100 125
Ambient temperature TA ( °C )
150
0
200
Ambient temperature TA ( °C )
Collector power dissipation PC (mW)
60
30
20
10
0
40
50
-30 0 25 50 75 100 125
Collector Power Dissipation vs. Ambient Temperature
Forward Current vs. Ambient Temperature
-30 0 25 50 75 100
Ambient temperature TA ( °C )
Collector-emitter voltage VCE ( V )
Collector-emitter saturation voltage VCE(SAT) (V)
Collector-emitter Saturation
Voltage vs. Ambient Temperature
100
TA = 25°C
0
0.8
1.2
1.6
2.0
0
0.04
0.08
0.12
0.16
0.20
0.24
0.28
Forward current IF (±mA)
0 0.2 0.4 0.6 0.8 1.0
Collector current IC (mA)
Relative current transfer ratio
Current Transfer Ratio vs. Forward Current
(normalized to SFH628A-2 & SFH628A-3)
Forward current IF (±mA)
Current transfer ratio CTR (%)
0
40
60
80
100
0
0.5
1.0
0.4
0.1 0.2 0.5 1 2 5
120
20
IF = ±1mA
IC = 0.5mA
1.5 IF = ±1mA
VCE = 0.5V
-30 0 25 50 75 100
Ambient temperature TA ( °C )
Relative Current Transfer Ratio
vs. Ambient Temperature
VCE = 0.5V
TA = 25 °C
Collector Current vs. Low Collector-emitter
Voltage (normalized to SFH628A-2 & SFH628A-3)
IF = ±1mA
IF = ±0.5mA