ISO3080DWR

The ISO3080 and ISO3086 devices are isolated full-duplex differential line drivers and receivers, while the ISO3082 and ISO3088 devices are isolated half-duplex differential line transceivers for TIA/EIA-485/422 applications. By breaking ground loops, these devices operate over a much wider common-mode voltage range, making them well suited for long-distance transmission lines. The symmetric isolation barrier has been tested to provide 2500VRMS isolation for 60s between the bus transceiver and logic-level interface per UL1577. All I/Os with cabling are susceptible to electrical transient noise from various sources. If these transients have sufficient amplitude and duration, they can damage the transceiver or nearby sensitive circuitry. These isolated devices significantly improve protection and reduce the risk of damage to costly control circuits. The ISO3080, ISO3082, ISO3086, and ISO3088 devices are rated for a temperature range of -40℃ to +85℃.

Applications

• Safety systems
• Chemical production
• Factory automation
• Motor and motion control
• HVAC and building automation networks
• Networked security checkpoints

Key features

• Meets or exceeds TIA/EIA RS-485 requirements
• Signal data rate up to 20Mbps
• 1/8 unit load, up to 256 nodes on a single bus
• Thermal shutdown protection
• Low bus capacitance, 16pF (typical)
• 50kV/μs typical transient immunity
• Fail-safe receiver for open, short-circuit, and idle bus conditions
• 3.3V inputs tolerant of 5V voltage
• Bus pin ESD protection
• 12kV HBM between bus pins and GND2
• 6kV HBM between bus pins and GND1
• Safety-related certifications:
• 4000VPK basic insulation, 560VPK VIORM, compliant with DIN EN IEC60747-17 (VDE0884-17)
• 2500VRMS isolation, compliant with UL1577
• 4000VPK isolation, compliant with CSA62368-1