ISL8490IB

Product Overview

Category

ISL8490IB belongs to the category of integrated circuits (ICs).

Use

The ISL8490IB is commonly used as a voltage level translator and bidirectional I2C bus buffer. It allows for seamless communication between devices operating at different voltage levels.

Characteristics

• Voltage level translation: The ISL8490IB can translate signals between two different voltage domains, enabling communication between devices with incompatible voltage levels.
• Bidirectional operation: It supports bidirectional data transfer, allowing for both reading and writing of data.
• High-speed operation: The IC is capable of high-speed data transmission, making it suitable for applications requiring fast communication.
• Low power consumption: The ISL8490IB is designed to minimize power consumption, making it energy-efficient.
• Small package size: It comes in a compact package, which makes it suitable for space-constrained applications.

Package

The ISL8490IB is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the ISL8490IB lies in its ability to facilitate communication between devices operating at different voltage levels, ensuring compatibility and seamless data transfer.

Packaging/Quantity

The ISL8490IB is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply voltage range: 1.65V to 5.5V
• Operating temperature range: -40°C to +85°C
• Maximum data rate: 400kHz
• Number of channels: 1
• Input/output voltage levels: 1.8V, 2.5V, 3.3V, 5V

Detailed Pin Configuration

The ISL8490IB has the following pin configuration:

1. VCCA: Power supply input for side A
2. SDA: Bidirectional data line for side A
3. SCL: Clock line for side A
4. OE: Output enable pin
5. VCCB: Power supply input for side B
6. SDA: Bidirectional data line for side B
7. SCL: Clock line for side B
8. GND: Ground

Functional Features

• Voltage level translation: The ISL8490IB translates the voltage levels of the I2C bus signals, allowing devices with different voltage requirements to communicate effectively.
• Bidirectional operation: It supports bidirectional data transfer, enabling both reading and writing of data on the I2C bus.
• Automatic direction sensing: The IC automatically detects the direction of data flow and adjusts the voltage levels accordingly.
• Enable/disable control: The output enable (OE) pin allows the user to enable or disable the device as needed.

Advantages and Disadvantages

Advantages

• Enables communication between devices with incompatible voltage levels
• Supports bidirectional data transfer
• High-speed operation
• Low power consumption
• Compact package size

Disadvantages

• Limited number of channels (only 1 channel)
• Maximum data rate limited to 400kHz

Working Principles

The ISL8490IB works by utilizing a voltage level translation mechanism. It detects the voltage levels of the incoming signals and adjusts them to match the required voltage levels of the receiving device. This ensures seamless communication between devices operating at different voltage domains.

Detailed Application Field Plans

The ISL8490IB finds applications in various fields where voltage level translation and bidirectional data transfer are required. Some of the detailed application field plans include:

1. Industrial automation: The IC can be used in industrial automation systems to facilitate communication between devices operating at different voltage levels, such as sensors, actuators, and controllers.
2. Consumer electronics: It can be employed in consumer electronic devices, such as smartphones and tablets, to enable communication between components with different voltage requirements.
3. Automotive systems: The ISL8490IB can be utilized in automotive applications, allowing for seamless data transfer between various modules and subsystems within a vehicle.
4. Internet of Things (IoT): It finds application in IoT devices where multiple sensors and actuators need to communicate with each other, even if they operate at different voltage levels.

Detailed and Complete Alternative Models

1. PCA9306: This is another voltage level translator IC that supports bidirectional I2C bus communication. It operates at a supply voltage range of 1.2V to 3.6V and has two bidirectional channels.
2. TXB0108: This IC is a bidirectional voltage-level translator specifically designed for translating signals between different voltage domains. It operates at a supply voltage range of 1.2V to 3.6V and has eight bidirectional channels.
3. SN74LVC4245A: This is a dual-supply voltage level translator IC with eight bidirectional channels