ADUM1251ARZ-RL7

ADUM1251 is a hot swappable digital isolator with nonlatching, bidirectional communication channels that are compatible with I²C interfaces. This eliminates the need for splitting I²C signals into separate transmit and receive signals for use with standalone optocouplers. This device provides one bidirectional channel and one unidirectional channel for applications where a bidirectional clock is not required. It contain hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus. It is approved by UL recognition, 2500V rms for 1 minute per UL 1577, CSA component acceptance notice 5A, VDE certificate of conformity, DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 560V peak. It is widely used in application such as Isolated I²C, SMBus, or PMBus interfaces, multilevel I²C interfaces, power supplies, networking, power over Ethernet, hybrid electric vehicle battery management etc.

• Bidirectional I²C communication
• Open-drain interfaces
• Suitable for hot swap applications
• 30mA current sink capability
• Maximum frequency is 1000KHz min
• Supply voltage range is 3V to 5.5V
• Number of inputs, VDD1 side is 2, number of inputs, VDD2 side is 1
• Maximum data rate is 1Mbps, maximum propagation delay is 150ns
• Operating temperature is -40°C to +105°C
• Package style is 8-lead NSOIC

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party