LTC4300A-3 Series

Level Shifting Hot Swappable 2-Wire Bus Buffer with Enable

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Level Shifting Hot Swappable 2-Wire Bus Buffer with Enable

Part	Data Rate (Max) [Max]	Number of Channels	Package / Case	Package / Case	Type	Supplier Device Package	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Output	Input
Analog Devices Inc./Maxim Integrated LTC4300A-3IMS8#TRPBF	400 kHz	2	8-MSOP 8-TSSOP	0.118 in 3 mm Width	Accelerator Buffer	8-MSOP	Surface Mount	5.5 V	2.7 V	I2C - Hotswap	3 mA	85 °C	-40 C	2-Wire Bus	2-Wire Bus
Analog Devices Inc./Maxim Integrated LTC4300A-3CMS8#TRPBF	400 kHz	2	8-MSOP 8-TSSOP	0.118 in 3 mm Width	Accelerator Buffer	8-MSOP	Surface Mount	5.5 V	2.7 V	I2C - Hotswap	3 mA	70 °C	0 °C	2-Wire Bus	2-Wire Bus
Analog Devices Inc./Maxim Integrated LTC4300A-3CMS8#PBF	400 kHz	2	8-MSOP 8-TSSOP	0.118 in 3 mm Width	Accelerator Buffer	8-MSOP	Surface Mount	5.5 V	2.7 V	I2C - Hotswap	3 mA	70 °C	0 °C	2-Wire Bus	2-Wire Bus
Analog Devices Inc./Maxim Integrated LTC4300A-3IDD#TRPBF	400 kHz	2	8-WFDFN Exposed Pad		Accelerator Buffer	8-DFN (3x3)	Surface Mount	5.5 V	2.7 V	I2C - Hotswap	3 mA	85 °C	-40 C	2-Wire Bus	2-Wire Bus
Analog Devices Inc./Maxim Integrated LTC4300A-3CDD#TRPBF	400 kHz	2	8-WFDFN Exposed Pad		Accelerator Buffer	8-DFN (3x3)	Surface Mount	5.5 V	2.7 V	I2C - Hotswap	3 mA	70 °C	0 °C	2-Wire Bus	2-Wire Bus

Catalog

Level Shifting Hot Swappable 2-Wire Bus Buffer with Enable

Description

The LTC4300A-3 hot swappable 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. When the connection is made, the LTC4300A-3 provides bidirectional buffering, keeping the backplane and card capacitances isolated. Rise-time accelerator circuitry allows the use of weaker DC pull-up currents while still meeting rise-time requirements. During insertion, the SDA and SCL lines are precharged to 1V to minimize bus disturbances.The LTC4300A-3 provides level translation between 3.3V and 5V supplies. The backplane and card can both be powered with supplies ranging from 2.7V to 5.5V. The LTC4300A-3 also incorporates a CMOS threshold ENABLE pin which forces the part into a low current mode and isolates the card from the backplane. When driven to VCC, the ENABLE pin sets normal operation.The LTC4300A-3 is available in the MSOP and 3mm × 3mm DFN packages.*Patent pending.ApplicationsHot Board InsertionServersCapacitance Buffer/Bus ExtenderDesktop Computer