DATA SHEET
The information in this document is subject to change without notice.
1997
Document No. P12846EJ1V0DS00 (1st edition)
Date Published August 1997 NS
Printed in Japan
PHOTOCOUPLER
PS8701
HIGH NOISE REDUCTION HIGH-SPEED ANALOG OUTPUT TYPE
5-PIN SOP PHOTOCOUPLER
DESCRIPTION
The PS8701 is an optically coupled isolator containing a GaAlAs LED on the light emitting diode (input side) and a
PIN photodiode and a high-speed amplifier transistor on the output side on one chip.
This is a plastic SOP (Small Out-line Package) type for high density applications.
FEATURES
High common mode transient immunity (C
MH
, C
ML
=
10 kV/
s MIN.)
High supply voltage (V
CC
= 35 V)
High isolation voltage (BV = 2 500 Vr.m.s.)
High-speed response (t
PHL
= 0.8
s MAX., t
PLH
= 1.2
s MAX.)
Taping product number (PS8701-E3, E4, F3, F4)
APPLICATIONS
Computer and peripheral manufactures
General purpose inverter
Substitutions for relays and pulse transformers
Power supply
1.27
0.4
+0.10
0.05
0.25 M
2.0
0.10.1
2.3 MAX.
1.2 MAX.
4.4
7.00.3
1.3
0.50.3
0.15
+0.10 0.05
PACKAGE DIMENSIONS
in millimeters
4.5 MAX.
5
3
1
2
4
1. Anode
2. Cathode
3. GND
4. V
O
5. V
CC
TOP VIEW
2
PS8701
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 C, unless otherwise specified)
Parameter
Symbol
Ratings
Unit
Diode
Forward Current
I
F
25
mA
Reverse Voltage
V
R
3.0
V
Power Dissipation
P
D
45
mW
Detector
Supply Voltage
V
CC
35
V
Output Voltage
V
O
35
V
Output Current
I
O
8.0
mA
Power Dissipation
P
C
100
mW
Isolation Voltage
*1
BV
2 500
Vr.m.s.
Operating Ambient Temperature
T
A
55 to +100
C
Storage Temperature
T
stg
55 to +125
C
*1 AC voltage for 1 minute at T
A
= 25 C, RH = 60 % between input and output
ELECTRICAL CHARACTERISTICS (T
A
= 25 C)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Diode
Forward Voltage
V
F
I
F
= 16 mA
1.7
2.2
V
Reverse Current
I
R
V
R
= 3 V
10
A
Forward Voltage
Temperature Coefficient
V
F
/
T
I
F
= 16 mA
-
1.6
mV/
C
Terminal Capacitance
C
t
V = 0 V, f = 1 MHz
60
pF
Detector
High Level Output Current
I
OH
(1)
I
F
= 0 mA, V
CC
= V
O
= 5.5 V
3
500
nA
High Level Output Current
I
OH
(2)
I
F
= 0 mA, V
CC
= V
O
= 30 V
100
A
Low Level Output Voltage
V
OL
I
F
= 16 mA, V
CC
= 4.5 V, I
O
= 1.2 mA
0.1
0.4
V
Low Level Supply Current
I
CCL
I
F
= 16 mA, V
O
= open, V
CC
= 30 V
50
A
High Level Supply Current
I
CCH
I
F
= 0 mA, V
O
= open, V
CC
= 30 V
0.01
2
Coupled
Current Transfer Ratio
CTR
I
F
= 16 mA, V
CC
= 4.5 V, V
O
= 0.4 V
15
20
35
%
Isolation Resistance
R
I-O
V
I-O
= 1 kV
DC
, RH = 40 to 60 %
10
11
Isolation Capacitance
C
I-O
V = 0 V, f = 1 MHz
0.4
pF
Propagation Delay Time
(H
L)
*1
t
PHL
I
F
= 16 mA, V
CC
= 5 V, R
L
= 2.2 k
,
C
L
= 15 pF
0.5
0.8
s
Propagation Delay Time
(L
H)
*1
t
PLH
0.6
1.2
Common Mode
Transient Immunity at
High Level Output
*2
C
MH
I
F
= 0 mA, V
CC
= 5 V, R
L
= 4.1 k
,
V
CM
= 1.5 kV
10
kV/
s
Common Mode
Transient Immunity at
Low Level Output
*2
C
ML
I
F
= 16 mA, V
CC
= 5 V, R
L
= 4.1 k
,
V
CM
= 1.5 kV
-
10
3
PS8701
*1 Test circuit for propagation delay time
Pulse input
47
(Pulse width = 100 s,
Duty cycle = 1/10)
R
L
= 2.2 k
V
O
(Monitor)
V
CC
= 5 V
Input
(Monitor)
0.1 F
C
L
= 15 pF
Input
Output
50 %
1.5 V
5 V
V
OL
t
PHL
t
PLH
C
L
is approximately 15 pF which includes probe and stray wiring capacitance
*2 Test circuit for common mode transient immunity
I
F
R
L
= 4.1 k
V
O
(Monitor)
V
CC
= 5 V
0.1 F
V
CM
90 %
10 %
1.5 kV
0 V
5 V
2 V
0.8 V
V
OL
V
CM
V
O
(I
F
= 0 mA)
V
O
(I
F
= 16 mA)
t
r
t
f
USAGE CAUTIONS
1. This product is weak for static electricity by designed with high-speed integrated circuit so protect against static
electricity when handling.
2. By-pase capacitor of more than 0.1
F is used between V
CC
and GND near device.
4
PS8701
TYPICAL CHARACTERISTICS (T
A
= 25 C, unless otherwise specified)
50
30
20
10
0
40
25
50
75
100
Ambient Temperature T
A
(C)
Diode Power Dissipation P
D
(mW)
DIODE POWER DISSIPATION vs.
AMBIENT TEMPERATURE
120
100
60
20
0
80
40
25
50
75
100
Ambient Temperature T
A
(C)
Transistor Power Dissipation P
C
(mW)
TRANSISTOR POWER DISSIPATION vs.
AMBIENT TEMPERATURE
100
0.01
0.1
10
1
1.4
1.8
2.0
2.4
1.0
1.2
1.6
2.2
Forward Voltage V
F
(V)
Forward Current I
F
(mA)
FORWARD CURRENT vs.
FORWARD VOLTAGE
T
A
= +100 C
+50 C
+25 C
0 C
25 C
1 000
1
0.1
100
10
50
100
25
0
25
75
Ambient Temperature T
A
(C)
High Level Output Current I
OH
(nA)
HIGH LEVEL OUTPUT CURRENT vs.
AMBIENT TEMPERATURE
V
CC
= V
O
= 30 V
V
CC
= V
O
= 5.5 V
I
F
= 0 mA
80
20
0
40
60
70
50
10
30
0.5
5
10
50
1
Forward Current I
F
(mA)
CURRENT TRANSFER RATIO vs.
FORWARD CURRENT
Current Transfer Ratio CTR (
%
)
V
CC
= 4.5 V,
V
O
= 0.4 V
1.6
0.0
1.2
0.4
1.4
1.0
0.8
0.6
0.2
0
50
100
50
25
25
75
Ambient Temperature T
A
(C)
Normalized Current Transfer Raio CTR
NORMALIZED CURRENT TRANSFER
RATIO vs. AMBIENT TEMPERATURE
,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,
Normalized to 1.0
at T
A
= 25 C, I
F
= 16 mA,
V
CC
= 4.5 V, V
O
= 0.4 V
5
PS8701
10
4
0
8
6
2
4
8
18
20
16
2
6
10
12
14
Output Voltage V
O
(V)
Output Current I
O
(mA)
OUTPUT CURRENT vs.
OUTPUT VOLTAGE
20 mA
15 mA
10 mA
5 mA
I
F
= 25 mA
6
5
4
2
0
3
1
12
16
20
4
8
2
6
10
14
18
Forward Current I
F
(mA)
Output Voltage V
O
(V)
OUTPUT VOLTAGE vs.
FORWARD CURRENT
R
L
= 2.2 k
5.6 k
3.0
0
1.0
2.0
10
15
25
5
20
Forward Current I
F
(mA)
PROPAGATION DELAY TIME vs.
FORWARD CURRENT
Propagation Delay Time t
PHL
, t
PLH
( s)
V
CC
= 5 V,
R
L
= 2.2 k
t
PHL
t
PLH
10
1
0.1
10 k
100 k
1 k
Load Resistance R
L
(
)
PROPAGATION DELAY TIME vs.
LOAD RESISTANCE
Propagation Delay Time t
PHL
, t
PLH
( s)
V
CC
= 5 V,
I
F
= 16 mA
t
PLH
t
PHL
5
4
2
0
3
1
50
0
50
100
25
75
25
Ambient Temperature T
A
(C)
NORMALIZED PROPAGATION DELAY TIME
vs. AMBIENT TEMPERATURE
Normalized Propagation Delay Time t
PHL
, t
PLH
Normalized to 1.0
at T
A
= 25 C,
I
F
= 16 mA, V
CC
= 5 V,
R
L
= 2.2 k
t
PLH
t
PHL
PDF 
ZIP