| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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58 pcs
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58 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Common Mode Transient Immunity (Min) | |
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| Isolated Power | |
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The ISO1644DWR from Texas Instruments is a high-performance digital isolator designed for robust, bidirectional I2C communication. It features hot-swappable capabilities and enhanced EMC protection, making it suitable for demanding applications.
This isolator provides up to 5000V RMS isolation per UL1577 and supports bidirectional data transfer up to 1.7 MHz for I2C interfaces, along with up to 3 additional unidirectional isolated GPIO channels supporting 50 Mbps speed. It operates within a wide temperature range of -40°C to +125°C.
The device is available in a 16-SOIC package and supports surface mount installation. Key electrical characteristics include a supply range of 3V to 5.5V on Side 1 and 2.25V to 5.5V on Side 2, with open-drain outputs capable of sinking 3.5mA (Side 1) and 50mA (Side 2).
Applications for the ISO1644DWR include isolated I2C buses, SMBus and PMBus interfaces, Power Over Ethernet (PoE), motor control systems, and battery management systems. Its robust isolation barrier with enhanced EMC, including ±100 kV/µs typical CMTI and ±8 kV IEC-ESD protection, ensures reliable operation in noisy environments.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.68 | $2.68 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The ISO1644DWR has an isolation rating of 5000 VRMS per UL1577.
The operating temperature range for the ISO1644DWR is -40°C to +125°C.
The ISO1644DWR is available in a 16-SOIC package.
The ISO1644DWR supports bidirectional data transfer up to 1.7 MHz for I2C communication.
The ISO1644DWR has 5 channels.
The ISO1644DWR supports I2C and SPI interfaces.