PHOTOCOUPLER
PS9121
HIGH CMR, 15 Mbps OPEN COLLECTOR OUTPUT TYPE
5-PIN SOP (SO-5) 3.3 V PHOTOCOUPLER
−NEPOC Series−
Document No. PN10502EJ05V0DS (5th edition)
Date Published August 2008 NS
DESCRIPTION
The PS9121 is an optically 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 PS9121 is designed specifically for high common mode transient immunity (CMR) and low pulse width
distortion. The PS9121 is suitable for high density application.
FEATURES
• Low power consumption (VCC = 3.3 V)
• Pulse width distortion (⏐t
PHL − tPLH⏐ = 35 ns MAX.)
53
12
4
1. Anode
2. Cathode
3. GND
4. V
O
5. V
CC
PIN CONNECTION
(Top View)
• High common mode transient immunity (CM
H, CML = ±15 kV/
μ
s MIN.)
• Small package (SO-5)
• High-speed (15 Mbps)
• High isolation voltage (BV = 3 750 Vr.m.s.)
• Open collector output
• Ordering number of taping product: PS9121-F3, F4: 2 500 pcs/reel
• Pb-Free product
• Safety standards
TRUTH TABLE
LED
Output
ON
L
OFF
H
• UL approved: File No. E72422
• DIN EN60747-5-2 (VDE0884 Part2) approved No.40008902 (option)
• CSA approved: File No. 2115283 (CA 101391)
APPLICATIONS
• Measurement equipment
• PDP
• FA Network
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
