Description
CA-IS309x Reinforced Isolated RS485/422 Transceivers with DC-DC Converter
The CA-IS309x 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. All devices of this family have the logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier that provides up to 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.
The CA-IS309x family of devices is designed for high-speed multi-drop operation with high ESD protection of up to ±20kV HBM on the bus pins. The receiver is 1/8-unit load, allowing up to 256 transceivers (loads) on a common bus. The CA-IS3092W/CA-IS3092VW and CA-IS3098W/CA-IS3098VW provide half-duplex transceivers, the driver and receiver enable pins let any node at any given moment be configured in either transmit or receive mode which decreases cable requirements. The individual logic supply input of CA-IS3092VW and CA-IS3098VW devices allows fully compatible 2.7V to 5.5V logic on logic input/output lines.
The CA-IS309x series devices are available in wide-body 16-pin SOIC package which are the industry standard isolated RS-485 package, and operate over -40°C to +125°C temperature range.
Key Features
High-Performance and Compliant with RS-485 EIA/TIA-485 Standard
- Data rate: up to 20Mbps for CA-IS3098 and 0.5Mbps for CA-IS3092
- 1/8 unit load enables up to 256 nodes on the bus
- 3V to 5.5V supply voltage range, and the CA-IS3092VW/CA-IS3098VW provide individual logic supply input
Integrated DC-DC Converter for Cable-side Power
- 3.3V and 5V output options (VISO ≤ VCC)
- High integration with internal transformer
- Soft-start reduces input inrush current
- Overload and short-circuit protection
- Thermal shutdown
Integrated Protection for Robust Communication
- 5kVRMS withstand isolation voltage for 60s (galvanic isolation)
- ±150kV/μs typical CMTI
- High lifetime: >40 years
- ±20kV Human Body Model(HBM) ESD protection on bus I/O, ±6kV HBM ESD protection on logic I/O
- True fail-safe guarantees known receiver output state
Wide operating temperature range
- –40°C to 125°C
Wide-body SOIC16-WB(W) Package
Typical applications
- Isolated RS-485/RS-422 communications
- PV inverter, motor driver
- Industrial Automation Equipment
- Grid infrastructure
- Solar inverter
- Motor drivers
- HVAC
Features
- Compliant with TIA/EIA-485-A
- On-chip isolated DC-DC converter (including transformer)
- Output voltage range 3.3V/5.0V optional
- Soft start function limits voltage and current overshoot
- Integrated overload and short circuit protection
- Integrated overheat protection
- Strong Electromagnetic Compatibility (EMC)
- Signaling rate up to 10 Mbps
- Fail-safe receiver (bus open, short circuit)
- Supports up to 256 bus nodes
- Bus side pin ESD capability
- 6kV HBM
- ±15kV IEC 61000-4-2 Contact Discharge
- 3V to 5.5V power supply (VCCA)
- In the receiving state, the bus input is open or short-circuited and the receiver outputs a high level
- Wide temperature range: -55°C to 125°C
- Pin compatible with most isolated RS-485/RS-422 transceivers with integrated power
- High Common Mode Transient Immunity: 150 kV/μs (typ)
- Up to 5000 VRMS isolation withstand voltage
- Isolation barrier life: >40 years
- Temperature range: –40°C to 105°C
- Wide-body SOIC16-WB(W) and wide-body SOIC20-WB(T) packages, RoHS compliant
- Safety related certifications (applying):
- All planned certifications
- 7071VPK VIOTM and 849VPK VIORM according to DIN V VDE V 0884-11:2017-01
- 5000VRMS isolation for up to 1 minute under UL 1577
- IEC 60950, IEC 60601 and EN 61010 certified
- CQC TUV and CSA certified
Specifications
CA-IS3092W technical specifications, attributes, and parameters.
Attributes
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Value
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Category
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Signal Isolation Devices/Isolated RS-485/422 Transceivers with power
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Manufacturer
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Chipanalog
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Package
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SOIC-16-300mil
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Data Rate(Max)
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500Kbps
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Communication Mode
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Half-Duplex
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Voltage – Supply
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3.3V
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Voltage – Supply
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5V
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Output Voltage
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3.3V
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Output Voltage
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5V
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CMTI(kV/us)
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150kV/us
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Isolation Voltage(Vrms)
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5000
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Operating Temperature
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-40℃~+125℃
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