Document
Si87xx
5 K V L E D E M U L A T O R I N P U T , O P E N C O LL EC TO R OUTPUT ISOLATORS
Features
Pin-compatible, drop-in upgrades for popular high-speed digital optocouplers Performance and reliability advantages vs. optocouplers Resistant to temperature, age and forward current effects 10x lower FIT rate for longer service life Higher common-mode transient immunity: >50 kV/µs typical Lower power and forward input diode current PCB footprint compatible with optocoupler packaging
Wide range of product options
1 channel diode emulator input 3 to 30 V open collector output Propagation delay 30 ns Data rates dc to 15 Mbps
3.75 and 5 kV reinforced isolation UL, CSA, VDE Wide operating temperature range –40 to +125 °C RoHS-compliant packages SOIC-8 DIP8 SDIP6 LGA8
Pin Assignments: See page 18
SOIC-8, DIP8, LGA8 Open Collector Output
Applications
Industrial automation Isolated data acquisition Motor controls and drives Test and measurement equipment Isolated switch mode power supplies
SDIP6 Open Collector Output
Safety Regulatory Approvals (Pending)
UL 1577 recognized
Up
VDE certification conformity
IEC
to 5000 Vrms for 1 minute
CSA component notice 5A approval
IEC
60747-5-2 (VDE 0884 Part 2) (reinforced insulation)
CQC certification approval
GB4943.1
60950-1, 61010-1, 60601-1 (reinforced insulation)
Description
The Si87xx isolators are pin-compatible, one-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 Si87xx 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 Si87xx series offer longer service life and dramatically higher reliability compared to optocouplers. Ordering options include open collector output with and without integrated pull-up resistor and output enable options.
SOIC-8, DIP8, LGA8 Open Collector Output with 20 k Pull-up Resistor
SOIC-8, DIP8, LGA8 Open Collector Output with Output Enable
Patent pending
Preliminary Rev. 0.5 9/12 Copyright © 2012 by Silicon Laboratories Si87xx
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Free Datasheet http://www.datasheet4u.com/
Si87xx
Functional Block Diagram
Diode Emulator
VDD
A1
Output Stage
(Open-Collector)
XMIT IF
REC
OUT
C1 GND
2
Preliminary Rev. 0.5
Free Datasheet http://www.datasheet4u.com/
Si87xx TABLE O F C ONTENTS
Section Page
1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. Application Information . . . . ..