LTC4310-1/LTC4310-2
Hot-Swappable
I2C Isolators
Features Description Bidirectional I2C Communication Between Two
Isolated Buses
n Full Isolation with Inexpensive Ethernet
Transformers or Capacitors
n Low Voltage Level Shifting
n I2C Maximum Operating Frequency: 100kHz for LTC4310-1 400kHz for LTC4310-2
n I2C Specification Compliant V , V
OL IL
n ±5kV Human Body Model ESD Protectio Rise Time Accelerators
n SDA, SCL Hot-Swapping
n Very Low Shutdown Current
n Stuck Bus Disconnect and Recovery
n Thermal Shutdow 10-Lead MSOP and 3mm × 3mm DFN Packages The LTC®4310 provides bidirectional I2C communications
between two I2C buses whose grounds are isolated from
one another. Each LTC4310 encodes I2C bus logic states
into signals that are transmitted across an isolation barrier
to another LTC4310. The receiving LTC4310 decodes the
transmission and drives its l2C bus to the appropriate logic
state. The isolation barrier can be bridged by an inexpensive
Ethernet, or other transformer, to achieve communications …