LTC4310

PRODUCTION

Hot-Swappable I²C Isolators

Data Sheet Product Selection Table

Part Models: 16
1ku List Price: Starting From $1.81

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Overview

Bidirectional I²C Communication Between Two Isolated Buses
Full Isolation with Inexpensive Ethernet Transformers or Capacitors
Low Voltage Level Shifting
I²C Maximum Operating Frequency:

100kHz for LTC4310-1
400kHz for LTC4310-2

I²C Specification Compliant V_OL, V_IL
±5kV Human Body Model ESD Protection
Rise Time Accelerators
SDA, SCL Hot-Swapping
Very Low Shutdown Current
Stuck Bus Disconnect and Recovery
Thermal Shutdown
10-Lead MSOP and 3mm × 3mm DFN Packages

The LTC4310 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 across voltage differences reaching thousands of volts, or it can be bridged by capacitors for lower voltage isolation. The LTC4310-1 is intended for use in 100kHz I²C systems. The LTC4310-2 is intended for 400kHz I²C systems.

Rise time accelerators provide strong pull-up currents on SCL and SDA rising edges to meet rise time specifications for heavily loaded systems. Data and clock Hot Swap^™ circuitry prevent data corruption when a card is inserted into or removed from a live bus. When a bus is stuck low for 37ms, the LTC4310 turns off its pull-down devices and generates up to sixteen clocks and a STOP bit in an attempt to free the bus. Driving EN low sets the LTC4310 in a very low current shutdown mode to conserve power.

Applications

Isolated I²C, SMBus and PMBus Interfaces
Isolated Power Supplies
Positive-to-Negative Rail Communications
Power-over-Ethernet

Part Models: 16
1ku List Price: Starting From $1.81

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4310CDD-1#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CDD-1#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CDD-2#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CDD-2#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CMS-1#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CMS-1#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CMS-2#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310CMS-2#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IDD-1#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IDD-1#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IDD-2#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IDD-2#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IMS-1#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IMS-1#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IMS-2#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4310IMS-2#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0130_Form Material_Report
LTC4310CMS-1#PBF	PRODUCTION
LTC4310CMS-1#TRPBF	PRODUCTION
LTC4310CMS-2#PBF	PRODUCTION
LTC4310CMS-2#TRPBF	PRODUCTION
LTC4310IMS-1#PBF	PRODUCTION
LTC4310IMS-1#TRPBF	PRODUCTION
LTC4310IMS-2#PBF	PRODUCTION
LTC4310IMS-2#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Interface Transceivers & Isolators 2
LTM2883	PRODUCTION	SPI/Digital or I²C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
LTM2892	PRODUCTION	SPI/Digital or I²C μModule Isolator