Si871x/2x
5 KV LED EMULATOR INPUT, LOGIC OUTPUT ISOLATORS
Features
High Speed: dc to 15 Mbps
Wide range of product options
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
optocouplers
Propagation delay 30 ns
Performance and reliability
Up to 5000 VRMS isolation
advantages vs. optocouplers
10 kV surge withstand capability
Resistant to temperature, age and
forward current effects
10x lower FIT rate for longer
AEC-Q100 qualified
Wide operating temperature range
service life
– 40 to +125 °C
Higher common-mode transient RoHS-compliant packages
immunity: >50 kV/µs typical
SOIC-8 (Narrow body)
Lower power and forward input
DIP8 (Gull-wing)
diode current
SDIP6 (Stretched SO-6)
Applications
Industrial automation
Isolated data acquisition
Motor controls and drives
Test and measurement equipment
Isolated switch mode power supplies
Safety Regulatory Approvals (Pending)
UL 1577 recognized
Up to 5000 Vrms for 1 minute
CSA component notice 5A
approval
IEC 60950-1, 61010-1, 60601-1
(reinforced insulation)
VDE certification conformity
IEC60747-5-2/VDE0884-10
(basic/reinforced insulation)
CQC certification approval
GB4943.1
Description
The Si871x/2x isolators are pin-compatible, single-channel, drop-in
replacements for popular optocouplers with data rates up to 15 Mbps.
These devices isolate high-speed digital signals and offer performance,
reliability, and flexibility advantages not available with optocoupler
solutions. The Si871x/2x series is based on Silicon Labs' proprietary
CMOS isolation technology for low-power and high-speed operation and
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.
Pin Assignments:
See page 21
NC 1
UVLO
ANODE 2
e
CATHODE 3
8 VDD
7 NC
6 VO
NC 4
5 GND
SOIC-8, DIP8
Industry Standard Pinout
NC 1
8 VDD
UVLO
ANODE 2
e
CATHODE 3
7 EN
6 VO
NC 4
5 GND
SOIC-8, DIP8 with Output Enable
Industry Standard Pinout
ANODE 1
NC 2
e
CATHODE 3
6 VDD
UVLO
5 VO
4 GND
SDIP6
Industry Standard Pinout
Patent pending
Rev. 1.0 8/14
Copyright © 2014 by Silicon Laboratories
Si871x/2x