DATA SHEET
PHOTOCOUPLER
PS9122
1 Mbps OPEN COLLECTOR OUTPUT TYPE
5-PIN SOP (SO-5)
HIGH-SPEED PHOTOCOUPLER
DESCRIPTION
The PS9122 is an optical coupled high-speed, active low type isolator containing a GaAlAs LED on the input side
and a photodiode and a signal processing circuit on the output side on one chip.
The PS9122 is a high-speed digital output type photocoupler designed specifically for low circuit current.
The PS9122 is in 5-pin plastic SOP (Small Outline Package) and is suitable for high density application.
−NEPOC
Series−
FEATURES
• Supply Voltage
N rank: V
CC
= 3.3 V
L rank: V
CC
= 5 V
• Pulse width distortion (⏐t
PHL
−
t
PLH
⏐
= 200 ns MAX.)
• Small package (SO-5)
• High-speed (1 Mbps)
• High isolation voltage (BV = 3 750 Vr.m.s.)
• Open collector output
• Embossed tape product: PS9122-F3: 2 500 pcs/reel
• Pb-Free product
<R>
• Safety standards
• UL approved: File No. E72422
• DIN EN60747-5-2 (VDE0884 Part2) approved No.40008902 (option)
PIN CONNECTION
(Top View)
5
4
3
1. Anode
2. Cathode
3. GND
4. V
O
5. V
CC
1
2
TRUTH TABLE
LED
ON
OFF
Output
L
H
APPLICATIONS
• PoE (Power over Ethernet)
• Measurement equipment
• FA Network
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 products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. PN10697EJ02V0DS (2nd edition)
Date Published March 2010 NS
Printed in Japan
The mark <R> shows major revised points.
2008, 2010
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
PS9122
PACKAGE DIMENSIONS (UNIT: mm)
3.4
5
+0.3
–0.1
4
3
7.0±0.3
1
2.6±0.2
2
0.15
+0.10
–0.05
4.4
0.1±0.1
1.27
0.4
+0.10
–0.05
0.25 M
0.5±0.3
<R>
PHOTOCOUPLER CONSTRUCTION
Parameter
Air Distance
Outer Creepage Distance
Isolation Distance
Unit (MIN.)
4.2 mm
4.2 mm
0.2 mm
<R>
MARKING EXAMPLE
Ni/Pd/Au
PLATING
9122
N031
No. 1 pin Mark
Initial of NEC
(Engraved mark)
N
Type Number
Assembly Lot
*1
N
0 31
Week Assembled
Year Assembled
(Last 1 Digit)
Rank Code
*1
Bar : Pb-Free
2
Data Sheet PN10697EJ02V0DS
PS9122
<R>
ORDERING INFORMATION
Part Number
PS9122
Order Number
PS9122-AX
Rank
N
L
PS9122-F3
PS9122-F3-AX
*2
Solder Plating
Specification
Pb-Free
(Ni/Pd/Au)
Packing Style
20 pcs (Tape 20 pcs cut)
Safety Standards
Approval
Standard products
(UL approved)
Application
*1
Part Number
PS9122
*3
N
L
*2
Embossed Tape 2 500 pcs/reel
*3
PS9122-V
PS9122-V-AX
N
L
*2
20 pcs (Tape 20 pcs cut)
DIN EN60747-5-2
(VDE0884 Part2)
*3
PS9122-V-F3
PS9122-V-F3-AX
N
L
*2
Embossed Tape 2 500 pcs/reel
approved (Option)
*3
*1
For the application of the Safety Standard, following part number should be used.
*2
N rank: V
CC
= 3.3 V
*3
L rank: V
CC
= 5 V
Data Sheet PN10697EJ02V0DS
3
PS9122
ABSOLUTE MAXIMUM RATINGS (T
A
= 25°C, unless otherwise specified)
Parameter
Diode
Forward Current
*1
Symbol
I
F
V
R
V
CC
V
O
I
O
*2
Ratings
25
5
7
7
20
40
3 750
−40
to +100
−55
to +125
Unit
mA
V
V
V
mA
mW
Vr.m.s.
°C
°C
Reverse Voltage
Detector
Supply Voltage
Output Voltage
<R>
Output Current
Power Dissipation
Isolation Voltage
*3
P
C
BV
T
A
T
stg
Operating Ambient Temperature
Storage Temperature
<R>
<R>
*1
Reduced to 0.17 mA/°C at T
A
= 25°C or more.
*2
Applies to output pin V
O
(collector pin). Reduced to 1.5 mW/°C at T
A
= 80°C or more.
*3
AC voltage for 1 minute at T
A
= 25°C, RH = 60% between input and output.
Pins 1-2 shorted together, 3-5 shorted together.
RECOMMENDED OPERATING CONDITIONS
Parameter
Low Level Input Voltage
High Level Input Current
Supply Voltage
N rank
L rank
Symbol
V
FL
I
FH
V
CC
MIN.
0
6.3
2.7
4.5
N
R
L
330
10
3.3
5.0
TYP.
MAX.
0.8
12.5
3.6
5.5
3
4k
Ω
Unit
V
mA
V
<R>
TTL (R
L
= 1 kΩ, loads)
Pull-up Resistor
<R>
DRIVER CIRCUIT
It is recommended to use some buffer for low output current controller, especially in the case of low V
CC
, otherwise
to confirm that enough input current is supplied from controller.
V
CC
(3.3 to 5 V)
V
CC
(3.3 to 5 V)
6.3 mA to
Controller
Buffer
74xx14 Series
74VHC14xx, etc.
4
Data Sheet PN10697EJ02V0DS
PS9122
ELECTRICAL CHARACTERISTICS 1: N rank (T
A
=
−40
to +100°C, unless otherwise specified)
Parameter
Diode
Forward Voltage
Reverse Current
Terminal Capacitance
Detector High Level Output Current
Symbol
V
F
I
R
C
t
I
OH
*2
Conditions
I
F
= 10 mA, T
A
= 25°C
V
R
= 3 V, T
A
= 25°C
V = 0 V, f = 1 MHz, T
A
= 25°C
V
CC
= V
O
= 3.3 V, V
F
= 0.8 V
V
CC
= 3.3 V, I
F
= 5 mA, I
OL
= 10 mA
V
CC
= 3.3 V, I
F
= 0 mA, V
O
= Open
V
CC
= 3.3 V, I
F
= 10 mA, V
O
= Open
V
CC
= 3.3 V, V
O
= 0.8 V, R
L
= 350
Ω
MIN.
TYP.
1.6
*1
MAX.
1.8
10
Unit
V
μ
A
pF
30
1
0.2
100
0.6
2
3
2
5
μ
A
V
mA
<R>
Low Level Output Voltage
High Level Supply Current
Low Level Supply Current
V
OL
I
CCH
I
CCL
I
FHL
<R>
Coupled Threshold Input Current
(H
→
L)
Isolation Resistance
mA
Ω
R
I-O
V
I-O
= 1 kV
DC
, RH = 40 to 60%,
T
A
= 25°C
10
11
Isolation Capacitance
Propagation Delay Time
(H
→
L)
*3
C
I-O
t
PHL
V = 0 V, f = 1 MHz, T
A
= 25°C
V
CC
= 3.3 V, R
L
= 350
Ω,
I
F
= 7.5 mA,
V
THHL
= V
THLH
= 1.5 V
0.6
500
pF
ns
Propagation Delay Time
(L
→
H)
*3
t
PLH
700
<R>
<R>
Rise Time
Fall Time
Pulse Width Distortion
(PWD)
*3
t
r
t
f
⏐t
PHL-
t
PLH
⏐
V
CC
= 3.3 V, R
L
= 350
Ω,
T
A
= 25°C,
I
F
= 0 mA, V
O
>
2.0 V, V
CM
= 1.0 kV
V
CC
= 3.3 V, R
L
= 350
Ω,
T
A
= 25°C,
I
F
= 7.5 mA, V
O
<
0.8 V, V
CM
= 1.0 kV
60
70
200
ns
ns
kV/
μ
s
<R>
Common Mode
Transient Immunity at High
Level Output
*4
CM
H
15
20
<R>
Common Mode
Transient Immunity at Low
Level Output
*4
CM
L
15
20
Data Sheet PN10697EJ02V0DS
5
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