ISL33001
I²C Bus Buffer with Rise Time Accelerators and Hot Swap Capability

Key Features

• 2 Channel I²C compatible bi-directional buffer
• +2.3VDC to +5.5VDC supply range
• >400kHz operation
• Bus capacitance buffering
• Rise time accelerators
• Hot-swapping capability
• ±6kV Class 3 HBM ESD protection on all pins
• ±12kV HBM ESD protection on SDA/SCL pins
• Enable pin (ISL33001 and ISL33003)
• Logic level translation (ISL33002 and ISL33003)
• READY logic pin (ISL33001)
• Accelerator disable pin (ISL33002)
• Pb-free (RoHS Compliant) 8 Ld SOIC (ISL33001 only), 8 Ld TDFN (3mmx3mm) and 8 Ld MSOP packages
• Low quiescent current: 2.2mA typ
• Low shutdown current: 0.5µA typ

Description

The ISL33001, ISL33002, ISL33003 are 2-Channel Bus Buffers provide the necessary buffering for extending the bus capacitance beyond the 400pF maximum specified by the I²C specification. In addition, the ISL33001, ISL33002, ISL33003 feature rise time accelerator circuitry to reduce power consumption from passive bus
pull-up resistors and improve data-rate performance. All devices also include hot swap circuitry to prevent corruption of the data and clock lines when I²C devices are plugged into a live backplane and level translation for mixed supply voltage applications.

The ISL33001, ISL33002, ISL33003 operates at supply voltages from +2.3V to +5.5V at a temperature range of -40°C to +85°C.

Applications

• I²C bus extender and capacitance buffering
• Server racks for telecom, datacom, and computer servers
• Desktop computers
• Hot-swap board insertion and bus isolation