FEATURES
• HIGH ISOLATION VOLTAGE
BV:3.75 k Vr.m.s. MIN
• SOP (SMALL OUT-LINE PACKAGE)
• ISOLATED CHANNELS PER EACH PACKAGE
• AC INPUT RESPONSE
• HIGH SPEED SWITCHING
tr = 3 µs, tf = 5 µs TYP
• LOW COLLECTOR TO EMITTER DARK CURRENT
ICEO: 5 nA TYP @ TA = 25 °C, VCE = 40 V
• TAPE AND REEL AVAILABLE
DESCRIPTION
PS2705-1, -2 and -4 are optically coupled isolators containing
GaAs light emitting diodes and an NPN silicon phototransistor.
Each is mounted in a plastic SOP (Small Out-line Package) for
high density applications. This package has a shield effect to
cut off ambient light.
PS2705-1
PS2705-2
PS2705-4
HIGH ISOLATION VOLTAGE
AC INPUT RESPONSE TYPE
SOP MULTI PHOT OCOUPLER
ELECTRICAL CHARACTERISTICS (TA = 25°C)
PART NUMBER PS2705-1, -2, -4
SYMBOLS PARAMETERS UNITS MIN TYP MAX
VFForward Voltage, IF = ± 5 mA V 1.1 1.4
C Junction Capacitance, V= 0, f = 1.0 MHz pF 60
ICEO Collector to Emitter Dark Current, VCE = 40 V, IF = 0 nA 100
CTR Current Transfer Ratio, IF = ± 5 mA, VCE = 5 V % 50 100 300
CTR1/CTR2CTR Ratio2, IF = ± 5 mA, VCE = 5 V 0.3 0.1 3.0
VCE (sat) Collector Saturation Voltage, IF = ±10 mA, IC = 2 mA V 0.3
R1-2 Isolation Resistance, Vin-out = 1.0 k V Ω1011
C1-2 Isolation Capacitance, V = 0, f = 1.0 MHZpF 0.4
trRise T ime1, VCC = 5 V, IC = 2 mA, RL = 100 Ωµs3
tfFall T ime1, VCC = 5 V, IC = 2 mA, RL = 100 Ωµs5
Coupled Transistor Diode
Notes:
1. Test Circuit for Switching Time 2. CTR1 = IC1/IF1, CTR2 = IC2/IF2
PS2705-1 PS2705-2 PS2705-4
APPLICATIONS
Interface circuit for various instrumentations and control
equipment.
• AC LINE/DIGITAL LOGIC
• DIGITAL LOGIC INTERFACE
• TWISTED PAIR LINE RECEIVER
• TELEPHONE/TELEGRAPH LINE RECEIVER
• SEQUENCE CONTROLLERS
• SYSTEMS APPLICATIONS, MEASURING
INSTRUMENTS
1
2
4
3
VCC
VOUT
RL = 100 Ω
50 Ω
PULSE INPUT IF
PW = 100 µs
Duty Cycle = 1/10
()
IF1
IF2
IC1
IC2
VCE
43
12
8765
1234
16 15 14 13
134
12 11 10 9
25786
California Eastern Laboratories
SYMBOLS PARAMETERS UNITS RATINGS
PS2705-1 PS2705-2,-4
Diode
IFForward Current mA ±50 ±50
PDPower Dissipation mW/Ch 80 80
IF (PEAK) Peak Forward Current A ±1±1
(PW = 100 µs, Duty Cycle 1%)
Transistor
VCEO Collector to Emitter Voltage V 40 40
(IC = ImA, IB = 0)
VECO Emitter to Collector Voltage V 6 6
(IE = 100µA, IB = 0)
ICCollector Current mA/Ch 80 80
PCPower Dissipation mW/Ch 150 120
Coupled
BV Isolation V oltage2Vr.m.s. 3750 3750
TSTG Storage Temperature °C -55 to +150 -55 to +150
TOP Operating Temperature °C -55 to +100 -55 to +100
ABSOLUTE MAXIMUM RATINGS1 (TA = 25°C)
PS2705-1, PS2705-2, PS2705-4
TYPICAL PERFORMANCE CUR VES (TA = 25°C)
DIODE POWER DISSIP A TION vs.
AMBIENT TEMPERA TURE
Diode Power Dissipation, P
D
(mW)
Ambient Temperature, TA (°C)
TRANSISTOR POWER DISSIP A TION
vs. AMBIENT TEMPERA TURE
T ransistor Power Dissipation, P
C
(mW)
Ambient Temperature, TA (°C)
FORW ARD CURRENT vs.
FORW ARD VOL T AGE
Forward Current, I
F
(mA)
Forward V oltage, VF (V)
FORW ARD CURRENT vs.
FORW ARD VOL T AGE
Forward Current, I
F
(mA)
Forward V oltage, VF (V)
Notes:
1. Operation in excess of any one of these parameters may
result in permanent damage.
2. AC voltage for 1 minute at TA = 25 °C, RH = 60 % between
input and ouput.
100
75
50
25
0 25 50 75 100
200
150
100
50
0 25 50 75 100
PS2705-1
1.5 mA/ ˚C
PS2705-2
PS2705-4
1.2 mA/ ˚C
TA = 100 ˚C
75 ˚C
50 ˚C25 ˚C
0 ˚C
-25 ˚C
-55 ˚C
100
10
1
0.1
0.01
0.6 0.8 1.0 1.2 1.4 1.6
80
60
40
20
0
-20
-40
-60
-80
-1.6 -1.2 -0.8 -0.4 0 0.4 0.8 1.2 1.6
TYPICAL PERFORMANCE CUR VES (TA = 25°C)
COLLECTOR TO EMITTER DARK
CURRENT vs. AMBIENT TEMPERA TURE
Collector to Emitter Dark Current, I
CEO
(nA)
Ambient Temperature, TA (°C)
COLLECTOR CURRENT vs.
COLLECTOR SA TURA TION VOL T AGE
Collector Current, I
C
(mA)
Collector Saturation V oltage, VCE(sat) (V)
COLLECTOR CURRENT vs.
COLLECTOR T O EMITTER VOL T AGE
Collector Current, I
C
(mA)
Collector to Emitter V oltage, VCE (V)
NORMALIZED OUTPUT CURRENT
vs. AMBIENT TEMPERA TURE
Normalized Output Current, CTR
Ambient Temperature, TA (°C)
Current T ransfer Ratio, CTR (%)
Forward Current , IF (mA)
SWITCHING TIME vs.
LOAD RESIST ANCE
Switching Time,t
(
µs)
Load Resistance, RL (Ω)
CURRENT TRANSFER RATIO
vs. FORW ARD CURRENT
PS2705-1, PS2705-2, PS2705-4
40 V
24 V
10 V
10000
1000
100
10
1
0.1
-60 -40 -20 0 20 40 60 80 100
25 mA
10 mA
5 mA
2 mA
I
F
= 1 mA
30
20
10
5
2
1
0.5
0.2
0.10 0.2 0.4 0.6 0.8 1.0
30 mA
20 mA
15 mA
10 mA
I
F
= 5 mA
50
40
30
20
10
0246710
Normalized to 1.0
at TA = 25 ˚C
IF = 5 mA, VCE = 5 V
1.2
1.0
0.8
0.6
0.4
0.2
0
-55 -25 0 25 50 75 100
V
CE
= 5 V
300
250
200
150
100
50
0.05 0.1 0.5 1 5 10 50
Sample C
Sample B
Sample A
V
CC
= 5 V
I
C
= 2 mA
100
t
on
t
off
t
d
t
s
50
10
5
1
0.5
50 100 500 1 k 2 k
PS2705-1, PS2705-2, PS2705-4
TYPICAL PERFORMANCE CUR VES (TA = 25°C)
CTR DEGRADA TION
∆CTR, Normalized
Time, Hr
Frequency , f (kHz)
Normalized Gain, Av
FREQUENCY RESPONSE
SWITCHING TIME vs.
LOAD RESIST ANCE
Switching Time,t
(
µs)
Load Resistance, RL (Ω)
I
F
= 5 mA
V
CC
= 5 V
T
A
= 25 ˚C
CTR = 100 % t
s
t
f
t
r
t
d
1000
500
100
50
10
5
1
0.5
100 500 1 k 5 k 10 k 50 k 100 k
100 Ω
300 Ω510 Ω
RL = 1 kΩ
1.0
0.8
0.6
0.4
0.2
05 10 50 100 500
I
F
= 5 mA
I
F
= 20
mA
I
F
= 40 mA
1.0
0.8
0.6
0.4
0.2
010
2
10
3
10
4
10
5
CTR Test condition
I
F
= 5 mA, V
CE
= 5 V
PS2705-1 PS2705-2
OUTLINE DIMENSIONS (Units in mm)
PIN CONNECTION
(Top View)
1. Anode, Cathode
2. Cathode, Anode
3. Emitter
4. Collecter
PIN CONNECTION
(Top View)
1, 3. Anode, Cathode
2, 4. Cathode,Anode
5, 7. Emitter
6, 8. Collecter
PS2705-4
1, 3, 5, 7. Anode, Cathode
2, 4, 6, 8. Cathode, Anode
9, 11, 13, 15. Emitter
10, 12, 14, 16. Collector
PIN CONNECTION
(Top View)
PS2705-1, PS2705-2, PS2705-4
16 9
18
19.46 MAX
2.3
MAX 2.54 1.2 MAX
0.1 ± 0.1
0.4+0.10
-0.05
2.0
0.5± 0.3
1.3
7.0 ± 0.3
4.4
16 15 14 13
134
12 11 10 9
25786
0.15+0.10
-0.05
43
12
12
43
4.5 MAX 7.0 ± 0.3
4.4 1.3
1.2 MAX
2.3 MAX
2.0
2.54
0.1 ± 0.1
0.4
0.15
+0.10
-0.05
0.5 ± 0.3
+0.10
-0.05
9.3 MAX
85
14
8765
1234
2.3
MAX
2.0
2.54 1.2 MAX
4.4
0.5 ± 0.3
1.3
7.0 ± 0.3
0.4
0.1 ± 0.1
0.15
+0.10
-0.05
+0.10
-0.05
EXCLUSIVE NORTH AMERICAN AGENT FOR RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
CALIFORNIA EASTERN LABORATORIES • Headquarters • 4590 Patrick Henry Drive • Santa Clara, CA 95054-1817 • (408) 988-3500 • Telex 34-6393 • FAX (408) 988-0279
24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) • Internet: http://WWW.CEL.COM
7/26/2000
DATA SUBJECT TO CHANGE WITHOUT NOTICE
