LTC4302IMS-2#PBF

Product Overview

Category

LTC4302IMS-2#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the family of I2C bus buffers.

Use

The LTC4302IMS-2#PBF is primarily used as a level translator and buffer for I2C bus systems. It allows multiple devices with different voltage levels to communicate on the same I2C bus, ensuring compatibility and reliable data transfer.

Characteristics

• Voltage Level Translation: The LTC4302IMS-2#PBF supports bidirectional voltage level translation between two I2C buses operating at different voltage levels.
• Buffering: It provides buffering and isolation between the two I2C buses, preventing bus lock-up and reducing the load on the master device.
• Hot Swappable: The device supports hot swapping, allowing devices to be added or removed from the I2C bus without disrupting the communication.

Package

LTC4302IMS-2#PBF is available in a miniature 10-lead MSOP package, which offers compactness and ease of integration into various electronic systems.

Essence

The essence of LTC4302IMS-2#PBF lies in its ability to facilitate seamless communication between I2C devices operating at different voltage levels, ensuring compatibility and reliable data transfer.

Packaging/Quantity

The LTC4302IMS-2#PBF is typically packaged in reels or tubes, containing a specified quantity of ICs per package. The exact packaging and quantity can vary depending on the supplier and customer requirements.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Maximum Bus Voltage: 6V
• Maximum Sink/Source Current: ±50mA
• Standby Current: 1μA (max)
• Rise/Fall Time: 10ns (typ)

Pin Configuration

The LTC4302IMS-2#PBF features a 10-lead MSOP package with the following pin configuration:

___________ SDA1 -| |- SDA2 SCL1 -| |- SCL2 GND -| |- EN VCC -| |- VCCB -| | -| | -|___________|

Functional Features

1. Bidirectional Voltage Level Translation: The LTC4302IMS-2#PBF allows bidirectional translation of voltage levels between two I2C buses, enabling communication between devices operating at different voltage levels.
2. Buffering and Isolation: It provides buffering and isolation between the two I2C buses, preventing bus lock-up and reducing the load on the master device.
3. Hot Swappable: The device supports hot swapping, allowing devices to be added or removed from the I2C bus without disrupting the communication.

Advantages and Disadvantages

Advantages

• Enables communication between I2C devices operating at different voltage levels.
• Prevents bus lock-up and reduces load on the master device.
• Supports hot swapping, facilitating easy addition or removal of devices from the I2C bus.

Disadvantages

• May introduce additional complexity to the system design.
• Requires careful consideration of voltage level compatibility and signal integrity.

Working Principles

The LTC4302IMS-2#PBF operates by monitoring the voltage levels on both sides of the I2C bus and automatically translating them to ensure proper communication. It uses a combination of level shifting circuitry and buffering to achieve bidirectional voltage level translation while maintaining signal integrity.

When a device on one side of the bus initiates communication, the LTC4302IMS-2#PBF detects the voltage level and translates it to the appropriate level for the other side. This allows devices operating at different voltage levels to communicate seamlessly.

Detailed Application Field Plans

The LTC4302IMS-2#PBF finds applications in various fields where I2C communication is required between devices operating at different voltage levels. Some of the common application areas include:

1. Industrial Automation: It can be used in industrial automation systems where sensors, actuators, and controllers operate at different voltage levels but need to communicate over an I2C bus.
2. Consumer Electronics: The device is suitable for consumer electronics products that utilize I2C communication, such as smartphones, tablets, and home automation systems.
3. Automotive Systems: In automotive applications, the LTC4302IMS-2#PBF can facilitate communication between different subsystems operating at varying voltage levels, such as infotainment systems, climate control modules, and sensor networks.

Detailed and Complete Alternative Models

1. PCA9306: This is another popular bidirectional I2C bus voltage level translator with similar features and functionality.