TCA9509RVHR - Texas Instruments

Manufacturer Part Number

TCA9509RVHR

Manufacturer

Texas Instruments

Introduction

The TCA9509RVHR is an integrated circuit designed to interface and buffer I2C communications.

Product Features and Performance

Low-power I2C buffer

Supports bidirectional data transfer

Prevents signal degradation in capacitively loaded environments

Bridges the gap between devices with different voltage levels

Product Advantages

Enables robust I2C communication

Extends signal reach across the board

Supports hot-swappable I2C-bus capabilities

Provides voltage-level translation between 1.8V and 5V buses

Key Technical Parameters

Interface: I2C Buffer, ReDriver

Data Rate (Max): 400kHz

Number of Channels: 1

Voltage - Supply: 2.7V to 5.5V

Current - Supply: 3mA

Operating Temperature Range: -40°C to 85°C

Quality and Safety Features

Built-in fail-safe feature to ensure a logic high output if both SDA and SCL inputs are connected to a wired-AND connection

Under-voltage lockout (UVLO)

Low shutdown current

Compatibility

Compatible with standard I2C protocols and systems

Interoperable with multiples of 2.7V to 5.5V power supply levels

Application Areas

Communication with I2C devices where signal integrity is critical

Systems requiring I2C bus extension or voltage level-shift

Automotive, Industrial, Consumer Electronics

Product Lifecycle

Product Status: Active

Not reported as nearing discontinuation

Options available for replacements or upgrades should they become necessary

Several Key Reasons to Choose This Product

Robust buffering for enhanced signal integrity

Supports multiple voltage levels, increasing system flexibility

High data rate capability suitable for modern applications

Low stand-by current for power-sensitive designs

Reliable performance across a wide temperature range

Compact and surface-mountable for modern PCB designs

Produced by Texas Instruments, a reputable manufacturer in semiconductors

Comes in convenient Tape & Reel packaging for automated assembly processes