ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The IL3485 and IL3422 are galvanically isolated, differential bus transceivers designed for bidirectional data communication over balanced transmission lines. The devices use NVE’s patented IsoLoop spintronic Giant Magnetoresistance (GMR) technology. The IL3485 delivers at least 1.5V into a 54Ω load, and the IL3422 at least 2V into a 100Ω load for excellent data integrity over long cables. These devices are also compatible with 3V input supplies, allowing interface to standard microcontrollers without additional level shifting.

Both the IL3485 and IL3422 have current limiting and thermal shutdown features to protect against output short circuits and bus contentions that may cause excessive power dissipation. The receivers also incorporate a “fail-safe if open” design, ensuring a logic high on R if the bus lines are disconnected or “floating.”

Features

• 20 Mbps data rate
• 3V to 5V power supplies
• Supports up to 32 nodes
• 15kV bus ESD protection
• 2500VRMS isolation per UL 1577
• 20kV/μs typical common mode rejection
• No carrier or clock for low EMI emissions and susceptibility
• -40℃ to +85℃ temperature range
• Thermal shutdown protection
• UL 1577 recognized; IEC 60747-5-5 (VDE 0884) certified
• 0.15", 0.3", or True 8mm 16-pin SOIC packages

Applications

• Data loggers
• P.O.S. systems
• Security networks
• Building environmental controls
• Industrial control networks
• Factory automation