LTC4300A-3CMS8#TRPBF

Product Overview

Category

The LTC4300A-3CMS8#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for I2C bus applications.

Use

This product is commonly used as a level translator and buffer for I2C bus systems. It allows devices with different voltage levels to communicate seamlessly on the same bus.

Characteristics

• Level translation: The LTC4300A-3CMS8#TRPBF provides bidirectional voltage level translation between two I2C buses operating at different voltage levels.
• Buffering: It acts as a buffer, isolating the capacitance of one bus from the other, ensuring reliable communication.
• Hot-swappable: The device supports hot-swapping, allowing devices to be added or removed from the bus without disrupting the operation of other devices.
• Low power consumption: The LTC4300A-3CMS8#TRPBF is designed to minimize power consumption, making it suitable for battery-powered applications.

Package

The LTC4300A-3CMS8#TRPBF is available in an 8-pin MSOP (Mini Small Outline Package) package. This compact package offers space-saving advantages while providing excellent thermal performance.

Essence

The essence of the LTC4300A-3CMS8#TRPBF lies in its ability to facilitate communication between I2C devices operating at different voltage levels, ensuring compatibility and reliable data transfer.

Packaging/Quantity

The LTC4300A-3CMS8#TRPBF is typically packaged in reels containing a quantity of 250 units. This packaging format ensures ease of handling and protection during transportation.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Maximum I2C Bus Voltage: 5.5V
• Maximum Data Rate: 400kHz
• Quiescent Current: 1.5μA (typical)

Detailed Pin Configuration

The LTC4300A-3CMS8#TRPBF features the following pin configuration:

1. SDA1: Input/Output for I2C bus 1.
2. SCL1: Input for the clock signal of I2C bus 1.
3. GND: Ground reference.
4. SDA2: Input/Output for I2C bus 2.
5. SCL2: Input for the clock signal of I2C bus 2.
6. EN: Enable pin to control the operation of the device.
7. VCC: Supply voltage input.
8. NC: No connection.

Functional Features

• Bidirectional level translation between two I2C buses operating at different voltage levels.
• Automatic direction sensing and control.
• Capacitive isolation between buses for reliable communication.
• Supports hot-swapping of devices on the bus.
• Low power consumption for energy-efficient applications.

Advantages and Disadvantages

Advantages

• Enables seamless communication between I2C devices with different voltage levels.
• Provides buffering and isolation, ensuring reliable data transfer.
• Supports hot-swapping, allowing for easy addition or removal of devices.
• Compact package size for space-constrained applications.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited to I2C bus applications and may not be suitable for other communication protocols.
• Requires careful consideration of voltage compatibility to avoid potential issues.

Working Principles

The LTC4300A-3CMS8#TRPBF operates by monitoring the voltage levels on both I2C buses and automatically adjusting its bidirectional buffers accordingly. It senses the direction of data flow and controls the voltage translation to ensure proper communication between devices with different voltage levels. The device also provides capacitive isolation, preventing one bus from affecting the operation of the other.

Detailed Application Field Plans

The LTC4300A-3CMS8#TRPBF finds applications in various fields where I2C communication is required, including:

1. Consumer Electronics: Enables communication between devices operating at different voltage levels, such as microcontrollers, sensors, and display modules.
2. Industrial Automation: Facilitates data exchange between I2C-based industrial sensors, actuators, and control systems.
3. Automotive Systems: Supports communication between different automotive modules, such as infotainment systems, climate control units, and body control modules.
4. Medical Devices: Allows for seamless integration of I2C-based medical sensors, monitors, and control units.
5. Internet of Things (IoT): Enables connectivity between IoT devices with varying voltage requirements, enhancing interoperability.

Detailed and Complete Alternative Models

1. PCA9306: Similar bidirectional I2C bus voltage level translator with automatic direction sensing.
2. TXB0108: Eight-channel bidirectional