ISL33002: I2C Bus Buffer with Rise Time Accelerators and Hot Swap Capability

The ISL33001, ISL33002, ISL33003 are 2-Channel Bus Buffers that provide the buffering necessary to extend 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 the ISL33002 and ISL33003 add level translation for mixed supply voltage applications. The ISL33001, ISL33002, ISL33003 operate at supply voltages from +2.3V to +5.5V at a temperature range of -40°C to +85°C.

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: 2.1mA typ
  • Low shutdown current: 0.5µA typ
Applications
  • I2C bus extender and capacitance buffering
  • Server racks for telecom, datacom, and computer servers
  • Desktop computers
  • Hot-swap board insertion and bus isolation
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN1637: Level Shifting Between 1.8V and 3.3V Using I2C BuffersPDF13 Nov 2014215 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
ISL33001, ISL33002, ISL33003 DatasheetPDF17 Nov 2014630 KB
Design Files
TitleTypeUpdatedSizeOther Languages
ISL3300XMSOPEVAL1Z Design FilesZIP04 Apr 20141.91 MB
User Guides
TitleTypeUpdatedSizeOther Languages
ISL3300xMSOPEVAL1Z User GuidePDF13 Nov 2014290 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
ISL33002IRT2Z8 Ld DFN0.02281260RoHS
ISL33002IRT2Z-T8 Ld DFN T+R0.02281260RoHS
ISL33002IRTZ8 Ld DFN0.02283260RoHS
ISL33002IRTZ-T8 Ld DFN T+R0.02283260RoHS
ISL33002IUZ8 Ld MSOP0.02581260RoHS
ISL33002IUZ-T8 Ld MSOP T+R0.02581260RoHS
ISL33002MSOPEVAL1ZN/ARoHS
ISL33001, ISL33002, ISL33003 Datasheet 17 Nov 2014
8 Ld DFN T+R ISL85413
8 Ld DFN T+R ISL43L122
8 Ld MSOP T+R ISL84541
ISL33003
AN1637: Level Shifting Between 1.8V and 3.3V Using I2C Buffers 13 Nov 2014
ISL3300XMSOPEVAL1Z Design Files 04 Apr 2014
ISL3300xMSOPEVAL1Z User Guide 13 Nov 2014