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Data Sheet
ISO1228 Eight-Channel Isolated Digital Input with Current Limit and Diagnostics
1 Features
- Configurable IEC 61131-2 eight Type 1/3 or four Type 2 Isolated Digital Inputs
- Low Power and Heat Dissipation
- Selectable input current limit
- Fieldside LED drivers using input current
- Configurable sinking or sourcing type inputs
- Wire-break detection in sink mode
- Integrated field-side power loss detection
- Programmable Glitch Filters
- Built in CRC check across barrier
- Serial SPI and Parallel output options
- Supports SPI daisy chaining
- Supports SPI burst mode
- Integrated IEC ESD and Surge Protection
- High CMTI(Typ): 75kV/µs
- VCC1 Logic supply voltage range: 1.71V to 5.5V
- AVCC field supply voltage range (sink mode): 8.5V to 36V
- AVCC field supply voltage range (source mode): 13V to 36V
- Ambient temperature range: –40°C to 125°C
- Small Footprint 38-SSOP Package
- Safety-related certifications:
- 4242-VPK VIOTM and 637-VPK VIORM per DIN EN IEC 60747-17 (VDE 0884-17)
- 3000-VRMS Isolation for 1 Minute per UL 1577
- IEC 62368-1, IEC 61010-1 Certifications
- All Certifications Planned
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