ADUM1251WARZ-RL7

支持热插拔，双I2C隔离器 Hot Swappable, Dual I2C Isolators

Product Details

The ADuM1250/ADuM1251 are hot swappable digital isolators with nonlatching, bidirectional communication channels compatible with I2C interfaces. This eliminates the need for splitting I2C signals into separate transmit and receive signals for use with standalone optocouplers.

The ADuM1250 provides two bidirectional channels, supporting a complete isolated I2C interface. The ADuM1251 provides one bidirectional channel and one unidirectional channel for those applications where a bidirectional clock is not required.

Both the ADuM1250 and ADuM1251 contain hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus.

These isolators are based on _i_Coupler® chip scale transformer technology from Analog Devices, Inc. _i_Coupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages as compared to optocouplers. With the ADuM1250/ADuM1251, _i_Coupler channels can be integrated with semiconductor circuitry, which enables a complete isolated I2C interface to be implemented in a small form factor.

**Applications**

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Isolated I2C, SMBus, or PMBus interfaces

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Multilevel I2C interfaces

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Power supplies

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Networking

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Power over Ethernet

### Features and Benefits

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Automotive versions qualified per AEC-Q100

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Bidirectional I2C communication

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Open-drain interfaces

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Suitable for hot swap applications

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30 mA current sink capability

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1000 kHz operation

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High temperature operation: 125°C

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Safety and regulatory approvals

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UL recognition

2500 V rms for 1 minute per UL 1577

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CSA Component Acceptance Notice 5A

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VDE certificate of conformity

DIN V VDE V 0884-10 VDE V 0884-10:2006-12

VIORM = 560 V peak

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3.0 V to 5.5 V supply/logic levels

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8-lead SOIC RoHS-compliant package

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Safety & Regulatory Compliance