LTC4309CGN#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC4309CGN#PBF

Manufacturer

Analog Devices

Introduction

The LTC4309CGN#PBF is an I2C bus buffer and accelerator designed to facilitate hot-swappable I2C-bus and SMBus applications.

Product Features and Performance

Active I2C bus buffer

Allows I2C or SMBus device hot-swapping

Prevents SDA and SCL corruption during live board insertion and removal

Support for Standard (100kHz), Fast (400kHz), and Fast-Mode Plus (1MHz) I2C-buses

Capability to work with a supply voltage from 2.3V to 5.5V

Two bidirectional buffering channels

Automatic detection and isolation of bus contention or faults

Low operating current of 7mA

Compatible with I2C master or slave devices

2-wire bus input and output

Product Advantages

Enables hot-swapping of I2C devices without turning off the system

Minimizes downtime in systems that require maintenance or upgrades

Provides robust operation by preventing data corruption during insertion and removal

Supports high-speed I2C communication protocols

Minimizes power consumption with low supply current requirement

Key Technical Parameters

Maximum Data Rate: 400kHz

Number of Channels: 2

Capacitance - Input: 10 pF

Voltage - Supply Range: 2.3V to 5.5V

Current - Supply: 7mA

Operating Temperature Range: 0°C to 70°C

Mounting Type: Surface Mount

Package / Case: 16-SSOP

Supplier Device Package: 16-SSOP

Quality and Safety Features

Built with robust built-in fault protection

Automatically isolates problematic devices to maintain bus integrity

Compatibility

Compatible with I2C and SMBus standards

Interoperable with both master and slave devices on the I2C bus

Application Areas

Servers and Networking Equipment

Telecommunications

Embedded Systems and Computing

Industrial Control

User-Replaceable Modules

Product Lifecycle

Active status

Not reported as nearing discontinuation

Suitable replacements or upgrades should be checked with the manufacturer's current product offerings

Several Key Reasons to Choose This Product

Facilitates hot-swapping in critical applications reducing system downtime

Ensures data integrity under insertion and removal conditions

Addresses bus contention and faults automatically enhancing system reliability

High-Speed I2C support broadens the range of compatible devices

Simple integration with surface-mount packaging suitable for compact designs

Wide operating temperature range suitable for various climates and environments