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LTC4300A-3CDDPBF

Interface - Signal Buffers, Repeaters Level Shifting Hot Swappable 2-Wire Bus

Product Category: Signal Buffers, Repeaters
Mfr. Part #
LTC4300A-3CDD#PBF
Manufacturer: Analog Devices Inc.
Package: Tube
Lead Free Status /RoHS Status:
Data Sheet: LTC4300A-3CDD#PBF Datasheet
Inventory: In Stock

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Mfr. Part #: LTC4300A-3CDD#PBF

Product Details

Product Details

DESCRIPTION

The LTCÂ®4309 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.

FEATURES

â– Bidirectional Buffer Increases Fanout
â– 60mV Buffer Offset Independent of Load
â– Optional Disconnect when Bus is Stuck Low
â– Prevents SDA and SCL Corruption During Live
Board Insertion and Removal from Backplane
â– Level Shift 2.5V, 3.3V and 5V Busses
â– Compatible with Non-Compliant VOL I2C Devices
â– Â±6kV Human Body Model ESD Ruggedness
â– Isolates Input SDA and SCL Lines from Output
â– Compatible with I2Câ„¢, I2C Fast-Mode and SMBus
â– READY Open Drain Output
â– FAULT Open Drain Output
â– 1V Precharge on All SDA and SCL Lines
â– Optional Rise Time Accelerators
â– High Impedance SDA, SCL Pins for VCC = 0
â– Available in Small 12-Pin DFN (4mm x 3mm) and
16-Lead SSOP Packages

APPLICATIONS

â– Live Board Insertion
â– Servers
â– Capacitance Buffer/Bus Extender
â– RAID Systems
â– ATCA

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Mfr. Part #: LTC4300A-3CDD#PBF