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DATA SHEET
PHOTOCOUPLER
PS8821-1,-2
1 Mbps ANALOG OUTPUT TYPE
8-PIN SSOP (SO-8)
HIGH-SPEED PHOTOCOUPLER
NEPOC Series
DESCRIPTION
The PS8821-1, -2 are optically coupled isolators 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.
The PS8821-2 is suitable for high density applications.
FEATURES
• 40% reduction of mounting area (5-pin SOP × 2)
• Low power consumption (VCC = 3.3 V)
• High isolation voltage (BV = 2 500 Vr.m.s.)
• High-speed response (tPHL = 0.6 µs MAX., tPLH = 0.9 µs MAX.)
• Ordering number of tape product: PS8821-1-F3, F4: 1 500 pcs/reel
: PS8821-2-F3, F4: 1 500 pcs/reel
• Pb-Free product
APPLICATIONS
• Power over Ethernet
Computer and peripheral manufactures
• Substitutions for relays and pulse transformers
• Power supply
PIN CONNECTION
(Top View)
8765
1234
1. NC
2. Anode
3. Cathode
4. NC
5. GND
6. VO
7. NC
8. VCC
PS8802-2
8765
1234
1. Anode1
2. Cathode1
3. Cathode2
4. Anode2
5. GND
6. VO2
7. VO1
8. VCC
The information in this document is subject to change without notice. Before using this document, please confirm that
this is the latest version.
Document No. Preliminary
Date Published Feb 2005 CP(K)

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PACKAGE DIMENSIONS (UNIT: mm)
5.21±0.25
PS8821-1,-2
1.27
0.4+–00..0150 0.25 M
6.0±0.2
3.95±0.1
0.5±0.3
0.10 S
2

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ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specified)
Parameter
Diode
Forward Current*1
Reverse Voltage
Detector Supply Voltage
Output Voltage
Output Current
Power Dissipation
Isolation Voltage*2
Operating Ambient Temperature
Storage Temperature
Symbol
IF
VR
VCC
VO
IO
PC
BV
TA
Tstg
Ratings
25
5.0
7
7
8.0
10
2 500
–55 to +100
–55 to +125
Unit
mA/ch
V/ch
V
V/ch
mA/ch
mW/ch
Vr.m.s.
°C
°C
*1 Reduced to 0.63 mA/°C at TA = 85°C or more.
*2 AC voltage for 1 minute at TA = 25°C, RH = 60% between input and output.
PS8821-1,-2
3