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SFH628-2X, SFH628-3X, SFH628-4X, SFH628-2, SFH628-3, SFH628-4
LOW INPUT CURRENT PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
APPROVALS l UL recognised, File No. E91231 'X' SPECIFICATION APPROVALS l Certified to EN60950 by the following Test Bodies :Nemko - Certificate No. P96102022 Fimko - Registration No. 192313-01..25 Semko - Reference No. 9639052 01 Demko - Reference No. 305969 l VDE 0884 approval pending DESCRIPTION The SFH628 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 l Options :10mm lead spread - add G after part no. Surface mount - add SM after part no. Tape&reel - add SMT&R after part no. l Low input current 0.5mA IF l High Current Transfer Ratios (63-500% at 1mA, 32% min at 0.5mA) l High Isolation Voltage (5.3kVRMS ,7.5kVPK ) l High BVCEO (55V min) l All electrical parameters 100% tested l Custom electrical selections available APPLICATIONS Computer terminals l Industrial systems controllers l Measuring instruments l Signal transmission between systems of different potentials and impedances
l
2.54 7.0 6.0 1.2 5.08 4.08 1 2
Dimensions in mm
4 3
7.62 4.0 3.0 0.5 13 Max 0.26
3.0 0.5 3.35
ABSOLUTE MAXIMUM RATINGS (25C unless otherwise specified) Storage Temperature -55C to + 125C Operating Temperature -55C to + 100C Lead Soldering Temperature (1/16 inch (1.6mm) from case for 10 secs) 260C INPUT DIODE Forward Current Power Dissipation OUTPUT TRANSISTOR Collector-emitter Voltage BVCEO Emitter-collector Voltage BVECO Power Dissipation POWER DISSIPATION Total Power Dissipation
(derate linearly 2.67mW/C above 25C)
50mA 70mW
55V 6V 150mW
OPTION SM SURFACE MOUNT
OPTION G 7.62
200mW
0.6 0.1 10.46 9.86
1.25 0.75
0.26 10.16
ISOCOM COMPONENTS LTD Unit 25B, Park View Road West, Park View Industrial Estate, Brenda Road Hartlepool, Cleveland, TS25 1YD Tel: (01429) 863609 Fax :(01429) 863581
7/12/00
DB92395m-AAS/A1
ELECTRICAL CHARACTERISTICS ( TA = 25C Unless otherwise noted ) PARAMETER Input Output Forward Voltage (VF) Collector-emitter Breakdown (BVCEO) 55 ( Note 2 ) Emitter-collector Breakdown (BVECO) 6 Collector-emitter Dark Current (ICEO) Current Transfer Ratio (CTR) (Note 2) SFH628-2 SFH628-2 SFH628-3 SFH628-3 SFH628-4 SFH628-4 Collector-emitter Saturation Voltage VCESAT SFH628-2 SFH628-3 SFH628-4 Input to Output Isolation Voltage VISO Input-output Isolation Resistance RISO 5300 7500 5x1010 63 32 100 50 160 80 MIN TYP MAX UNITS 1.5 V V V nA TEST CONDITION IF = 5mA IC = 1mA IE = 100A VCE = 10V 1mA IF , 0.5V VCE 0.5mA IF , 1.5V VCE 1mA IF , 0.5V VCE 0.5mA IF , 1.5V VCE 1mA IF , 0.5V VCE 0.5mA IF , 1.5V VCE 1mA IF , 0.5mA IC 1mA IF , 0.8mA IC 1mA IF , 1.25mA IC See note 1 See note 1 VIO = 500V (note 1)
200
Coupled
200 320 500
% % % % % %
0.4 0.4 0.4
V V V VRMS VPK
Note 1 Note 2
Measured with input leads shorted together and output leads shorted together. Special Selections are available on request. Please consult the factory.
SWITCHING CHARACTERISTICS
IC = 2mA, VCC = 5V, RL = 100, TA = 25C (Fig 1) UNITS Turn-on Time Rise Time Turn-off Time Fall Time ton tr toff tf 6.0 3.5 5.5 5.0 s s s s
VCC Input RL = 100 Output 10% tr tf ton toff
10%
90%
90%
FIG 1
7/12/00
DB92395m-AAS/A1
Collector Power Dissipation vs. Ambient Temperature 200 Collector power dissipation P C (mW)
Collector Current vs. Low Collector-emitter Voltage (normalized to SFH628-2 & SFH628-3) 2.0 TA = 25C
150
Collector current I C (mA)
1.6 IF = 1mA 1.2 0.8 IF = 0.5mA 0.4 0
100
50
0 -30 0 25 50 75 100 125 Ambient temperature TA ( C ) Forward Current vs. Ambient Temperature 60 Relative current transfer ratio 50 40 30 20 10 0 -30 0 25 50 75 100 125 Ambient temperature TA ( C ) Collector-emitter Saturation Voltage vs. Ambient Temperature 0.28 IF = 1mA IC = 0.5mA Current transfer ratio CTR (%) 0.24 0.20 0.16 0.12 0.08 0.04 0 -30 0 25 50 75 100 Ambient temperature TA ( C )
7/12/00
0
0.2
0.4
0.6
0.8
1.0
Collector-emitter voltage VCE ( V ) Relative Current Transfer Ratio vs. Ambient Temperature
1.5
Forward current I F (mA)
IF = 1mA VCE = 0.5V
1.0
0.5
0 -30
0
25
50
75
100
Ambient temperature TA ( C ) Current Transfer Ratio vs. Forward Current (normalized to SFH628-2 & SFH628-3) 120 100 80 60 40 20 0 0.1 0.2 0.5 1 2 5 Forward current IF (mA)
DB92395m-AAS/A1
Collector-emitter saturation voltage V
CE(SAT)
(V)
VCE = 0.5V TA = 25 C

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