LTC4313IDD-3#TRPBF

LTC4313IDD-3#TRPBF is a hot swappable 2-wire bus buffer that provides bidirectional buffering while maintaining a low offset voltage and high noise margin up to 0.3VCC. The high noise margin allows the LTC4313 to be interoperable with devices that drive a high VOL (<gt/>0.4V) and allows multiple devices to be cascaded. The LTC4313-3 supports level translation to 1.5V, 1.8V and 2.5V. During insertion, the SDA and SCL lines are pre-charged to 1V to minimize bus disturbances. Connection is established between the input and output after ENABLE is asserted high and a stop bit or bus idle condition has been detected on the SDA and SCL pins. If both data and clock are not simultaneously high at least once in 45ms, the input is disconnected from the output. It is used in applications such as capacitance buffers/bus extender, live board insertion, telecommunications systems including ATCA, level translation, PMBus, servers.

• Compatible with non-compliant I²C devices that drive a high VOL
• Stuck bus disconnect and recovery
• Compatible with I²C, I²C fast mode and SMBus
• ±4KV human body model ESD ruggedness
• Input supply voltage range from 2.9V to 5.5V
• Input supply current is 8.1mA typical at (VENABLE = VCC = 5.5V, VSDAIN,SCLIN = 0V)
• Input leakage current is ±10µA maximum at (SDA, SCL pins = 5.5V, VCC = 5.5V, 0V)
• Input capacitance is 10pF maximum at (TA = 25°C. VCC = 3.3V)
• Operating temperature range from -40°C to 85°C
• 8-lead plastic DFN package

Notes

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