Catalog
Hot-Swappable Dual I2C®Isolators, 5 kV
Key Features
• Bidirectional I2C communication
• Open-drain interfaces
• Suitable for hot swap applications
• 30 mA current sink capability
• 1000 KHz operation
• 3.0 V to 5.5 V supply/logic levels
• 16-lead SOIC wide body package version (RW-16)
• High temperature operation: 105°C
• 16-lead SOIC wide body enhanced creepage version (RI-16-2)
• Safety and regulatory approvals
• UL recognition: 5000 V rms for 1 minute per UL 1577
• 5000 V rms for 1 minute per UL 1577
• CSA Component Acceptance Notice 5A (RI-16-2 package)
Description
AI
TheADuM2250/ ADuM2251 are hot swappable digital isolators with non-latching, bidirectional communication channels and are compatible with I2C interfaces. This eliminates the need for splitting I2C signals into separate transmit and receive signals for use with stand-alone optocouplers.The ADuM2250 provides two bidirectional channels, supporting a complete isolated I2C interface. The ADuM2251 provides one bidirectional channel and one unidirectional channel for those applications where a bidirectional clock is not required.The ADuM2250 / ADuM2251 contain hot swap circuitry to prevent data glitches when an unpowered card is inserted onto an active bus.These isolators are based oniCoupler®chip scale transformer technology from Analog Devices, Inc.iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages compared to optocouplers. The ADuM2250 / ADuM2251 integrateiCoupler channels with semiconductor circuitry to enable a complete, isolated I2C interface provided in a small form factor.APPLICATIONSIsolated I2C, SMbus, or PMBus InterfacesMultilevel I2C interfacesPower suppliesNetworkingPower over Ethernet
