Si871x/2x
5 KV LED E MULATOR INPUT, LOGIC OUTPUT ISOLATORS
Features
Pin Assignments:
High Speed: dc to 15 Mbps Wide range of product options
See page 21
2.5 to 5.5 V logic output Inverting and non-inverting
Pin-compatible, drop-in upgrades for Disable output high, low or tri-state
popular high-speed digital
1 channel diode emulator input
NC 1 8 VDD
UVLO
optocouplers
Propagation delay 30 ns
Performance and reliability
Up to 5000 V isolation
RMS
ANODE 2 7 NC
advantages vs. optocouplers
10 kV surge withstand capability
e
Resistant to temperature, age and
AEC-Q100 qualified
forward current effects
3 6
CATHODE VO
Wide operating temperature range
10x lower FIT rate for longer
40 to +125 C
service life
4 5 GND
NC
RoHS-compliant packages
Higher common-mode transient
SOIC-8 (Narrow body)
immunity: >50 kV/s typical
SOIC-8, DIP8
DIP8 (Gull-wing)
Lower power and forward input
Industry Standard Pinout
SDIP6 (Stretched SO-6)
diode current
VDD
NC 1 8
UVLO
Applications
ANODE 2 7 EN
Industrial automation Isolated data acquisition
e
Motor controls and drives Test and measurement equipment
Isolated switch mode power supplies
CATHODE 3 6 VO
Safety Regulatory Approvals (Pending)
4 5 GND
NC
UL 1577 recognized VDE certification conformity
SOIC-8, DIP8 with Output Enable
Up to 5000 Vrms for 1 minute IEC60747-5-2/VDE0884-10
Industry Standard Pinout
(basic/reinforced insulation)
CSA component notice 5A
CQC certification approval
approval
1 6 VDD
GB4943.1 ANODE
IEC 60950-1, 61010-1, 60601-1
UVLO
(reinforced insulation)
e
VO
2 5
NC
Description
CATHODE 3 4 GND
The Si871x/2x isolators are pin-compatible, single-channel, drop-in
replacements for popular optocouplers with data rates up to 15 Mbps.
SDIP6
These devices isolate high-speed digital signals and offer performance,
Industry Standard Pinout
reliability, and flexibility advantes ag not available with optocoupler
solutions. The Si871x/2x series isbased on Silicon Labs' proprietary
CMOS isolation technology for low-power and high-speed operation and Patent pending
are resistant to the wear-out effects found in optocouplers that degrade
performance with increasing temperature, forward current, and device
age. As a result, the Si871x/2x series offer longer service life and
dramatically higher reliability compared to optocouplers. Ordering options
include logic output with and without output enable options.
Rev. 1.0 8/14 Copyright 2014 by Silicon Laboratories Si871x/2xSi871x/2x
Functional Block Diagram
Diode
VDD
Emulator
A1
Output
Stage
REC
XMIT OUT
IF
(Logic Out)
C1
GND
2 Rev. 1.0