PHOTOCOUPLER
PS9821-1,-2
Document No. PN10471EJ04V0DS (4th edition)
Date Published March 2008 NS
HIGH CMR, 15 Mbps OPEN COLLECTOR OUTPUT TYPE
8-PIN SSOP (SO-8)
3.3 V HIGH-SPEED PHOTOCOUPLER
−NEPOC Series−
DESCRIPTION
The PS9821-1 and PS9821-2 are active-low type high-speed photocouplers that use a GaAlAs light-emitting diode
on the input side and a photodetector IC that includes a photodiode and a signal processor on the same chip on the
output side.
The PS9821-1, -2 are designed specifically for high common mode transient immunity (CMR) and low pulse width
distortion, PS9821-2 is suitable for high density applications.
FEATURES
• Low power consumption (VCC = 3.3 V)
• Pulse width distortion (⏐t
PHL−tPLH⏐ = 35 ns MAX.)
1234
8765
PS9821-1
1. NC
2. Anode
3. Cathode
4. NC
5. GND
6. V
O
7. NC
8. V
CC
1234
8765
SHIELD
SHIELD
PS9821-2
1. Anode1
2. Cathode1
3. Cathode2
4. Anode2
5. GND
6. V
O
2
7. V
O
1
8. V
CC
PIN CONNECTION
(Top View)
• High common mode transient immunity (C
MH, CML = ±15 kV/
μ
s MIN.)
• 40% reduction of mounting area (5-pin SOP × 2)
• High-speed (15 Mbps)
• High isolation voltage (BV = 2 500 Vr.m.s.)
• Open collector output
• Ordering number of tape product : PS9821-1-F3, F4: 1 500 pcs/reel
: PS9821-2-F3, F4: 1 500 pcs/reel
• Pb-Free product
• Safety standards
• UL approved: File No. E72422
• DIN EN60747-5-2 (VDE0884 Part2) approved No.40008347 (option)
APPLICATIONS
• Measurement equipment
• PDP
• FA Network
TRUTH TABLE
LED Output
ON L
OFF H
The mark <R> shows major revised points.
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
2004, 2008
