LTC4313IDD-1#TRPBF

LTC4313IDD-1#TRPBF FeaTures

Drive a High VOLRise Time Accelerator CurrentInsertion and Removal from BackplanePackages

LTC4313IDD-1#TRPBF DescripTion

The LTC®4313 is a hot swappable 2-wire bus bufferthat provides bidirectional buffering while maintain-ing a low offset voltage and high noise margin up to0.3 • VCC. The high noise margin allows the LTC4313 to beinteroperable with devices that drive a high VOL (>0.4V) andallows multiple LTC4313s to be cascaded. The LTC4313-1and LTC4313-2 support level translation between 3.3V and5V busses. In addition to these voltages, the LTC4313-3also supports level translation to 1.5V, 1.8V and 2.5V.During insertion, the SDA and SCL lines are pre-charged to1V to minimize bus disturbances. Connection is establishedbetween the input and output after ENABLE is assertedhigh and a stop bit or bus idle condition has been detectedon the SDA and SCL pins.If both data and clock are not simultaneously high at leastonce in 45ms, the input is disconnected from the output.Up to 16 clock pulses are subsequently generated to freethe stuck bus. Rise time accelerators (RTAs) provide pull-upcurrents on SDA and SCL rising edges to meet rise timespecifications in heavily loaded systems. The RTAs areconfigured as slew limited switches in the LTC4313-1 and2.5mA current sources in the LTC4313-2. The LTC4313-3does not have RTAs.400kHz Operation

LTC4313IDD-1#TRPBF applicaTions