ISL43485IB

Product Overview

Category: Integrated Circuit (IC)

Use: The ISL43485IB is a high-speed, quad-channel digital isolator designed for use in industrial applications. It provides galvanic isolation between different parts of an electronic system, ensuring signal integrity and protecting sensitive components from voltage spikes and noise.

Characteristics: - High-speed data transmission - Quad-channel configuration - Wide operating temperature range - Low power consumption - Robust isolation barrier - Enhanced noise immunity

Package: The ISL43485IB is available in a small outline integrated circuit (SOIC) package, which allows for easy integration into various electronic systems.

Essence: The essence of the ISL43485IB lies in its ability to provide reliable and secure communication between different parts of an industrial system, while maintaining signal integrity and protecting against electrical disturbances.

Packaging/Quantity: The ISL43485IB is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage: 3.0V to 5.5V
• Data Rate: Up to 40 Mbps
• Isolation Voltage: 2.5kV RMS
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 10 ns (max)
• Power Consumption: 1.6 mA (typ)

Pin Configuration

The ISL43485IB features a 16-pin SOIC package with the following pin configuration:

Pin 1: Channel 1 Input Pin 2: Channel 1 Output Pin 3: Channel 1 GND Pin 4: Channel 2 Input Pin 5: Channel 2 Output Pin 6: Channel 2 GND Pin 7: Channel 3 Input Pin 8: Channel 3 Output Pin 9: Channel 3 GND Pin 10: Channel 4 Input Pin 11: Channel 4 Output Pin 12: Channel 4 GND Pin 13: VDD Pin 14: VDD Pin 15: VSS Pin 16: VSS

Functional Features

• High-speed data transmission: The ISL43485IB supports data rates of up to 40 Mbps, enabling fast and efficient communication between different parts of an industrial system.
• Quad-channel configuration: With four independent channels, the IC allows for simultaneous isolation of multiple signals, increasing flexibility in system design.
• Enhanced noise immunity: The isolator features robust noise immunity, ensuring reliable signal transmission even in noisy industrial environments.
• Low power consumption: The IC is designed to minimize power consumption, making it suitable for battery-powered applications or systems with strict power requirements.

Advantages and Disadvantages

Advantages: - Provides galvanic isolation, protecting sensitive components from voltage spikes and noise. - High-speed data transmission capability enables efficient communication. - Quad-channel configuration offers flexibility in system design. - Wide operating temperature range allows for use in various industrial environments. - Low power consumption helps optimize energy efficiency.

Disadvantages: - Limited to quad-channel configuration, may not be suitable for applications requiring a higher number of isolated channels. - Higher cost compared to non-isolated alternatives.

Working Principles

The ISL43485IB utilizes optical or magnetic coupling techniques to achieve galvanic isolation. Each channel consists of an input side and an output side, which are electrically isolated from each other. When a signal is applied to the input side, it is converted into an isolated signal on the output side, ensuring that any electrical disturbances or voltage differences do not affect the integrity of the transmitted data.

Detailed Application Field Plans

The ISL43485IB is commonly used in various industrial applications, including:

1. Motor Control Systems: The isolator provides reliable communication between control circuits and motor drivers, ensuring accurate and safe motor operation.
2. Power Inverter Systems: It enables isolation between the control circuitry and power stage, protecting sensitive components from high voltage transients and improving system reliability.
3. Industrial Automation: The IC facilitates communication between different modules within an automated system, enhancing overall system performance and safety.
4. PLC (Programmable Logic Controller) Systems: It ensures secure communication between the PLC and external devices, such as sensors and actuators, enabling efficient control and monitoring of industrial processes.

Detailed and Complete Alternative Models

• ADuM1401: Quad-Channel Digital Isolator with similar specifications and features.
• ISO7741: High-Speed Quad-Channel Digital Isolator with enhanced noise immunity.
• MAX14850: Quad-Channel Digital Isolator with integrated DC/DC converter for improved power efficiency.

These alternative models offer similar functionality and can be considered based on specific application requirements and cost considerations