Chipanalog CA-IS2092A Isolated Interface IC

Chipanalog CA-IS2092A

The CA-IS2092A family of devices is galvanically-isolated RS-485 transceivers with built-in isolated DC-DC converter, that eliminates the need for a separate isolated power supply in space constrained isolated designs. The transceivers have the logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier that provides up to 2.5kVRMS (60s) of galvanic isolation and ±150kV/μs typical CMTI Isolation improves data communication by breaking ground loops and reduces noise where there are large differences in ground potential between ports. An integrated DC-DC converter generates the 3.3V or 5V operating voltage for the cable-side.

Features

• High-Performance and Compliant with RS-485 EIA/TIA-485 Standard
• Data rate is up to 0.5Mbps
• 1/8 unit load enables up to 256 nodes on the bus
• 3.0V to 5.5V DC-DC supply voltage range(VDDP)
• 2.5V to 5.5V RS-485 supply input(VDDL)
• Integrated DC-DC Converter for Cable-side Power
• 3.3V and 5V output options
• High integration with internal transformer
• Soft-start reduces input inrush current
• Overload and short-circuit protection
• Thermal shutdown
• Robust Galvanic Isolation of Digital Signals
• 2.5kVRMS withstand isolation voltage for 60s (galvanic isolation)
• ±150kV/μs typical CMTI
• High lifetime: >40 years
• Integrated Protection for Robust Communication
• ±8kV Human Body Model(HBM) ESD protection on bus I/O
• True fail-safe guarantees known receiver output state
• Driver current limit and thermal shutdown
• Wide operating temperature range

Applications

• Industrial Automation Equipment
• Solar inverter
• Motor drivers
• Building automation

Device Information

Download Datasheet (PDF)