LTC4309 - Level Shifting Low Offset Hot Swappable 2-Wire Bus Buffer With Stuck Bus Recovery

The LTC4309 hot swappable 2-wire bus Buffer allows I/O card insertion into a live Backplane without corruption of the data and Clock busses. The LTC4309 provides bidirectional buffering, keeping the Backplane and card capacitances isolated. Low offset and high VOL tolerance allows cascading of multiple devices on the Clock and data busses. If SDAOUT or SCLOUT are low for 30ms, FAULT will pull low indicating a stuck bus low condition. If DISCEN is tied high, the LTC4309 will automatically break the bus connection and generate up to 16 Clock pulses and a stop bit in an attempt to free the bus. A connection will resume if the stuck bus is cleared. If DISCEN is connected to GND, the busses will remain connected with no Clock or stop bit generation. ACC input enables rise-time accelerators for high capacitively loaded busses. During insertion, the SDA and SCL lines are precharged to 1V to minimize bus disturbances. When driven high, the ENABLE input allows the LTC4309 to connect after a stop bit or bus idle. Driving ENABLE low breaks the connection between SDAIN and SDAOUT, SCLIN and SCLOUT. READY is an open drain output which indicates that the Backplane and card sides are connected.
By Linear Technology Corporation
Part Manufacturer Description Datasheet Samples
LTC4309CGN#TRPBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, LEAD FREE, PLASTIC, SSOP-16, Power Management Circuit
LTC4309CGN#PBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, LEAD FREE, PLASTIC, SSOP-16, Power Management Circuit
LTC4309IGN#PBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, LEAD FREE, PLASTIC, SSOP-16, Power Management Circuit
LTC4309IDE#PBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12, 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED, DFN-12, Power Management Circuit
LTC4309CDE#TRPBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12, 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED, DFN-12, Power Management Circuit
LTC4309CDE#PBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12, 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED, DFN-12, Power Management Circuit
LTC4309IDE#TRPBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12, 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED, DFN-12, Power Management Circuit
LTC4309IGN#TRPBF Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, LEAD FREE, PLASTIC, SSOP-16, Power Management Circuit
LTC4309 's PackagesLTC4309 's pdf datasheet
LTC4309CDE-PBF DFN
LTC4309CDE-TRPBF DFN
LTC4309CGN-PBF SSOP
LTC4309CGN-TRPBF SSOP
LTC4309IDE-PBF DFN
LTC4309IDE-TRPBF DFN
LTC4309IGN-PBF SSOP
LTC4309IGN-TRPBF SSOP

LTC4309 pdf datasheet download


LTC4309 Pinout, Pinouts
LTC4309 pinout,Pin out
This is one package pinout of LTC4309,If you need more pinouts please download LTC4309's pdf datasheet.

LTC4309 Application circuits
LTC4309 circuits
This is one application circuit of LTC4309,If you need more circuits,please download LTC4309's pdf datasheet.


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